v3.26.1
Schedule H, line 4i - Schedule of Assets (Held at End of Year) (Details) - EBP 030 - USD ($)
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
EBP, Schedule of Asset Held for Investment [Line Items]    
Entity tax identification number 53-0257888  
Plan number 030  
Current Value $ 1,958,258,000  
Adjustment from fair value to contract value for GICs 1,640,000  
Notes receivable from participants $ 24,451,000 $ 23,783,000
Minimum    
EBP, Schedule of Asset Held for Investment [Line Items]    
Participant loan, interest rate 3.25%  
Maximum    
EBP, Schedule of Asset Held for Investment [Line Items]    
Participant loan, interest rate 9.50%  
Interest-bearing cash    
EBP, Schedule of Asset Held for Investment [Line Items]    
Current Value $ 8,198,000  
Collective funds:    
EBP, Schedule of Asset Held for Investment [Line Items]    
Current Value 1,432,250,000  
Dover stable value fund:    
EBP, Schedule of Asset Held for Investment [Line Items]    
Current Value 98,111,000  
Investment, Identifier [Axis]: Collective funds | T. Rowe | Structured Research Common Trust Fund Class C    
EBP, Schedule of Asset Held for Investment [Line Items]    
Current Value 208,436,000  
Investment, Identifier [Axis]: Collective funds | Vanguard | Target Retirement 2020 Trust I    
EBP, Schedule of Asset Held for Investment [Line Items]    
Current Value 28,236,000  
Investment, Identifier [Axis]: Collective funds | Vanguard | Target Retirement 2025 Trust I    
EBP, Schedule of Asset Held for Investment [Line Items]    
Current Value 66,723,000  
Investment, Identifier [Axis]: Collective funds | Vanguard | Target Retirement 2030 Trust I    
EBP, Schedule of Asset Held for Investment [Line Items]    
Current Value 152,156,000  
Investment, Identifier [Axis]: Collective funds | Vanguard | Target Retirement 2035 Trust I    
EBP, Schedule of Asset Held for Investment [Line Items]    
Current Value 99,237,000  
Investment, Identifier [Axis]: Collective funds | Vanguard | Target Retirement 2040 Trust I    
EBP, Schedule of Asset Held for Investment [Line Items]    
Current Value 133,721,000  
Investment, Identifier [Axis]: Collective funds | Vanguard | Target Retirement 2045 Trust I    
EBP, Schedule of Asset Held for Investment [Line Items]    
Current Value 65,474,000  
Investment, Identifier [Axis]: Collective funds | Vanguard | Target Retirement 2050 Trust I    
EBP, Schedule of Asset Held for Investment [Line Items]    
Current Value 58,057,000  
Investment, Identifier [Axis]: Collective funds | Vanguard | Target Retirement 2055 Trust I    
EBP, Schedule of Asset Held for Investment [Line Items]    
Current Value 48,058,000  
Investment, Identifier [Axis]: Collective funds | Vanguard | Target Retirement 2060 Trust I    
EBP, Schedule of Asset Held for Investment [Line Items]    
Current Value 28,133,000  
Investment, Identifier [Axis]: Collective funds | Vanguard | Target Retirement 2065 Trust I    
EBP, Schedule of Asset Held for Investment [Line Items]    
Current Value 11,715,000  
Investment, Identifier [Axis]: Collective funds | Vanguard | Target Retirement 2070 Trust I    
EBP, Schedule of Asset Held for Investment [Line Items]    
Current Value 1,687,000  
Investment, Identifier [Axis]: Collective funds | Vanguard | Target Retirement INCM & GR    
EBP, Schedule of Asset Held for Investment [Line Items]    
Current Value 312,000  
Investment, Identifier [Axis]: Collective funds | Vanguard | Target Retirement Income Trust I    
EBP, Schedule of Asset Held for Investment [Line Items]    
Current Value 29,916,000  
Investment, Identifier [Axis]: Collective funds | Vanguard | Vanguard Institutional 500 Index Unit D    
EBP, Schedule of Asset Held for Investment [Line Items]    
Current Value 212,202,000  
Investment, Identifier [Axis]: Collective funds | Vanguard | Vanguard Total Bond Index Unit D    
EBP, Schedule of Asset Held for Investment [Line Items]    
Current Value $ 37,861,000  
Investment, Identifier [Axis]: Dover stable value fund | ABBVIE INC | 4.88% - 03/15/2030 - 350    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.88%  
Par value $ 350  
Current Value $ 361,000  
Investment, Identifier [Axis]: Dover stable value fund | AMCAR_24-1 | 5.43% - 01/18/2029 - 599    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 5.43%  
Par value $ 599  
Current Value $ 604,000  
Investment, Identifier [Axis]: Dover stable value fund | AMERICAN TOWER CORPORATIO | 5.00% - 01/31/2030 - 325    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 5.00%  
Par value $ 325  
Current Value $ 333,000  
Investment, Identifier [Axis]: Dover stable value fund | AMGEN INC | 4.05% - 08/18/2029 - 350    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.05%  
Par value $ 350  
Current Value $ 350,000  
Investment, Identifier [Axis]: Dover stable value fund | AMXCA_25-4 | 4.30% - 07/15/2030 - 650    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.30%  
Par value $ 650  
Current Value $ 659,000  
Investment, Identifier [Axis]: Dover stable value fund | APPLE INC | 1.20% - 02/08/2028 - 375    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 1.20%  
Par value $ 375  
Current Value $ 357,000  
Investment, Identifier [Axis]: Dover stable value fund | ASTRAZENECA FINANCE LLC | 4.85% - 02/26/2029 - 350    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.85%  
Par value $ 350  
Current Value $ 359,000  
Investment, Identifier [Axis]: Dover stable value fund | AT&T INC | 4.70% - 08/15/2030 - 400    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.70%  
Par value $ 400  
Current Value $ 407,000  
Investment, Identifier [Axis]: Dover stable value fund | BAE SYSTEMS PLC | 3.40% - 04/15/2030 - 425    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.40%  
Par value $ 425  
Current Value $ 411,000  
Investment, Identifier [Axis]: Dover stable value fund | BANK OF AMERICA CORP | 5.16% - 01/24/2031 - 875    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 5.16%  
Par value $ 875  
Current Value $ 904,000  
Investment, Identifier [Axis]: Dover stable value fund | BANK OF MONTREAL | 4.35% - 09/22/2031 - 375    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.35%  
Par value $ 375  
Current Value $ 374,000  
Investment, Identifier [Axis]: Dover stable value fund | BANK OF NEW YORK MELLON C | 4.94% - 02/11/2031 - 375    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.94%  
Par value $ 375  
Current Value $ 386,000  
Investment, Identifier [Axis]: Dover stable value fund | BANK OF NOVA SCOTIA | 5.13% - 02/14/2031 - 365    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 5.13%  
Par value $ 365  
Current Value $ 376,000  
Investment, Identifier [Axis]: Dover stable value fund | BANK5_23-5YR4 | 6.50% - 12/15/2056 - 303    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 6.50%  
Par value $ 303  
Current Value $ 319,000  
Investment, Identifier [Axis]: Dover stable value fund | BANK_17-BNK7 | 3.18% - 09/15/2060 - 270    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.18%  
Par value $ 270  
Current Value $ 266,000  
Investment, Identifier [Axis]: Dover stable value fund | BANK_21-BN31 | 1.74% - 02/15/2054 - 300    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 1.74%  
Par value $ 300  
Current Value $ 286,000  
Investment, Identifier [Axis]: Dover stable value fund | BECTON DICKINSON AND COMP | 5.08% - 06/07/2029 - 325    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 5.08%  
Par value $ 325  
Current Value $ 334,000  
Investment, Identifier [Axis]: Dover stable value fund | BERKSHIRE HATHAWAY ENERGY | 3.25% - 04/15/2028 - 300    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.25%  
Par value $ 300  
Current Value $ 296,000  
Investment, Identifier [Axis]: Dover stable value fund | BMWLT_24-1 | 5.00% - 06/25/2027 - 750    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 5.00%  
Par value $ 750  
Current Value $ 754,000  
Investment, Identifier [Axis]: Dover stable value fund | BMWOT_22-A | 3.44% - 12/26/2028 - 230    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.44%  
Par value $ 230  
Current Value $ 229,000  
Investment, Identifier [Axis]: Dover stable value fund | BOEING CO | 5.15% - 05/01/2030 - 350    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 5.15%  
Par value $ 350  
Current Value $ 360,000  
Investment, Identifier [Axis]: Dover stable value fund | BP CAPITAL MARKETS AMERIC | 4.87% - 11/25/2029 - 350    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.87%  
Par value $ 350  
Current Value $ 359,000  
Investment, Identifier [Axis]: Dover stable value fund | BRISTOL-MYERS SQUIBB CO | 1.45% - 11/13/2030 - 425    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 1.45%  
Par value $ 425  
Current Value $ 376,000  
Investment, Identifier [Axis]: Dover stable value fund | BROADCOM INC | 5.15% - 11/15/2031 - 350    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 5.15%  
Par value $ 350  
Current Value $ 363,000  
Investment, Identifier [Axis]: Dover stable value fund | CARMX_25-3 | 4.35% - 07/15/2030 - 1,100    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.35%  
Par value $ 1,100  
Current Value $ 1,109,000  
Investment, Identifier [Axis]: Dover stable value fund | CARRIER GLOBAL CORP | 2.49% - 02/15/2027 - 325    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 2.49%  
Par value $ 325  
Current Value $ 320,000  
Investment, Identifier [Axis]: Dover stable value fund | CATERPILLAR FINANCIAL SER | 4.38% - 08/16/2029 - 350    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.38%  
Par value $ 350  
Current Value $ 355,000  
Investment, Identifier [Axis]: Dover stable value fund | CFCRE_17-C8 | 3.37% - 06/15/2050 - 9    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.37%  
Par value $ 9  
Current Value $ 9,000  
Investment, Identifier [Axis]: Dover stable value fund | CGCMT_16-P6 | 3.46% - 12/10/2049 - 510    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.46%  
Par value $ 510  
Current Value $ 507,000  
Investment, Identifier [Axis]: Dover stable value fund | CGCMT_18-B2 | 3.74% - 03/10/2051 - 242    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.74%  
Par value $ 242  
Current Value $ 239,000  
Investment, Identifier [Axis]: Dover stable value fund | CGCMT_20-GC46 | 2.61% - 02/15/2053 - 293    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 2.61%  
Par value $ 293  
Current Value $ 285,000  
Investment, Identifier [Axis]: Dover stable value fund | CHUBB INA HOLDINGS INC | 4.65% - 08/15/2029 - 315    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.65%  
Par value $ 315  
Current Value $ 322,000  
Investment, Identifier [Axis]: Dover stable value fund | CIGNA GROUP | 4.50% - 09/15/2030 - 325    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.50%  
Par value $ 325  
Current Value $ 327,000  
Investment, Identifier [Axis]: Dover stable value fund | CITIGROUP INC | 4.50% - 09/11/2031 - 775    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.50%  
Par value $ 775  
Current Value $ 777,000  
Investment, Identifier [Axis]: Dover stable value fund | CMS ENERGY CORPORATION | 3.45% - 08/15/2027 - 325    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.45%  
Par value $ 325  
Current Value $ 322,000  
Investment, Identifier [Axis]: Dover stable value fund | CNH_24-C | 4.03% - 01/15/2030 - 1,450    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.03%  
Par value $ 1,450  
Current Value $ 1,455,000  
Investment, Identifier [Axis]: Dover stable value fund | CNH_25-B | 4.30% - 10/15/2030 - 1,000    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.30%  
Par value $ 1,000  
Current Value 1,011,000  
Investment, Identifier [Axis]: Dover stable value fund | COLUMBIA TR MM FUND ZERO | Money Market    
EBP, Schedule of Asset Held for Investment [Line Items]    
Current Value $ 918,000  
Investment, Identifier [Axis]: Dover stable value fund | COMCAST CORPORATION | 3.40% - 04/01/2030 - 425    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.40%  
Par value $ 425  
Current Value $ 412,000  
Investment, Identifier [Axis]: Dover stable value fund | COMM_16-COR1 | 2.97% - 10/10/2049 - 18    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 2.97%  
Par value $ 18  
Current Value $ 18,000  
Investment, Identifier [Axis]: Dover stable value fund | COMM_18-COR3 | 4.18% - 05/10/2051 - 650    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.18%  
Par value $ 650  
Current Value $ 651,000  
Investment, Identifier [Axis]: Dover stable value fund | COPAR_23-2 | 5.82% - 06/15/2028 - 404    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 5.82%  
Par value $ 404  
Current Value $ 408,000  
Investment, Identifier [Axis]: Dover stable value fund | COREBRIDGE GLOBAL FUNDING | 5.20% - 06/24/2029 - 300    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 5.20%  
Par value $ 300  
Current Value $ 308,000  
Investment, Identifier [Axis]: Dover stable value fund | CRVNA_21-N1 | 0.70% - 01/10/2028 - 17    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 0.70%  
Par value $ 17  
Current Value $ 17,000  
Investment, Identifier [Axis]: Dover stable value fund | CRVNA_21-N4 | 1.80% - 09/11/2028 - 217    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 1.80%  
Par value $ 217  
Current Value $ 213,000  
Investment, Identifier [Axis]: Dover stable value fund | CRVNA_25-P1 | 4.55% - 05/10/2030 - 925    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.55%  
Par value $ 925  
Current Value $ 931,000  
Investment, Identifier [Axis]: Dover stable value fund | CRVNA_25-P4 | 4.14% - 12/10/2030 - 525    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.14%  
Par value $ 525  
Current Value $ 526,000  
Investment, Identifier [Axis]: Dover stable value fund | CSAIL_19-C15 | 3.90% - 03/15/2052 - 199    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.90%  
Par value $ 199  
Current Value $ 199,000  
Investment, Identifier [Axis]: Dover stable value fund | CSAIL_19-C16 | 3.14% - 06/15/2052 - 38    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.14%  
Par value $ 38  
Current Value $ 37,000  
Investment, Identifier [Axis]: Dover stable value fund | CSAIL_19-C17 | 2.96% - 09/15/2052 - 546    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 2.96%  
Par value $ 546  
Current Value $ 538,000  
Investment, Identifier [Axis]: Dover stable value fund | CSAIL_19-C18 | 2.87% - 12/15/2052 - 549    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 2.87%  
Par value $ 549  
Current Value $ 538,000  
Investment, Identifier [Axis]: Dover stable value fund | CVS HEALTH CORP | 5.13% - 02/21/2030 - 350    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 5.13%  
Par value $ 350  
Current Value $ 360,000  
Investment, Identifier [Axis]: Dover stable value fund | DBJPM_16-C3 | 2.89% - 08/10/2049 - 450    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 2.89%  
Par value $ 450  
Current Value $ 447,000  
Investment, Identifier [Axis]: Dover stable value fund | DIAGEO INVESTMENT CORPORA | 5.13% - 08/15/2030 - 350    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 5.13%  
Par value $ 350  
Current Value $ 363,000  
Investment, Identifier [Axis]: Dover stable value fund | DOMINION ENERGY INC | 5.00% - 06/15/2030 - 300    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 5.00%  
Par value $ 300  
Current Value $ 308,000  
Investment, Identifier [Axis]: Dover stable value fund | DUKE ENERGY CORP | 4.85% - 01/05/2029 - 300    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.85%  
Par value $ 300  
Current Value $ 306,000  
Investment, Identifier [Axis]: Dover stable value fund | EART_24-4A | 5.28% - 08/15/2030 - 187    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 5.28%  
Par value $ 187  
Current Value $ 187,000  
Investment, Identifier [Axis]: Dover stable value fund | EFF_24-1 | 5.23% - 03/20/2030 - 149    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 5.23%  
Par value $ 149  
Current Value $ 151,000  
Investment, Identifier [Axis]: Dover stable value fund | ELEVANCE HEALTH INC | 5.15% - 06/15/2029 - 350    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 5.15%  
Par value $ 350  
Current Value $ 361,000  
Investment, Identifier [Axis]: Dover stable value fund | ENBRIDGE INC | 4.50% - 02/15/2031 - 325    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.50%  
Par value $ 325  
Current Value $ 325,000  
Investment, Identifier [Axis]: Dover stable value fund | ENERGY TRANSFER LP | 5.20% - 04/01/2030 - 325    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 5.20%  
Par value $ 325  
Current Value $ 335,000  
Investment, Identifier [Axis]: Dover stable value fund | ENTERPRISE PRODUCTS OPERA | 4.60% - 01/15/2031 - 325    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.60%  
Par value $ 325  
Current Value $ 329,000  
Investment, Identifier [Axis]: Dover stable value fund | ERAC USA FINANCE LLC | 5.00% - 02/15/2029 - 325    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 5.00%  
Par value $ 325  
Current Value $ 333,000  
Investment, Identifier [Axis]: Dover stable value fund | EXELON CORPORATION | 5.15% - 03/15/2029 - 300    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 5.15%  
Par value $ 300  
Current Value $ 309,000  
Investment, Identifier [Axis]: Dover stable value fund | FFCB | 4.63% - 11/13/2028 - 775    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.63%  
Par value $ 775  
Current Value $ 796,000  
Investment, Identifier [Axis]: Dover stable value fund | FFCB | 4.88% - 04/20/2026 - 3,400    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.88%  
Par value $ 3,400  
Current Value $ 3,411,000  
Investment, Identifier [Axis]: Dover stable value fund | FGOLD 15YR GIANT | 3.00% - 05/01/2031 - 16    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.00%  
Par value $ 16  
Current Value $ 15,000  
Investment, Identifier [Axis]: Dover stable value fund | FGOLD 15YR GIANT | 3.00% - 09/01/2033 - 13    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.00%  
Par value $ 13  
Current Value $ 13,000  
Investment, Identifier [Axis]: Dover stable value fund | FGOLD 15YR GIANT | 3.50% - 01/01/2027 - 2    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 2  
Current Value $ 2,000  
Investment, Identifier [Axis]: Dover stable value fund | FGOLD 15YR GIANT | 3.50% - 01/01/2029 - 1    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 1  
Current Value $ 1,000  
Investment, Identifier [Axis]: Dover stable value fund | FGOLD 15YR GIANT | 3.50% - 03/01/2026 - 0    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 0  
Current Value $ 0  
Investment, Identifier [Axis]: Dover stable value fund | FGOLD 15YR GIANT | 3.50% - 03/01/2029 - 0    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 0  
Current Value $ 0  
Investment, Identifier [Axis]: Dover stable value fund | FGOLD 15YR GIANT | 3.50% - 04/01/2027 - 0    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 0  
Current Value $ 0  
Investment, Identifier [Axis]: Dover stable value fund | FGOLD 15YR GIANT | 3.50% - 04/01/2030 - 1    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 1  
Current Value $ 1,000  
Investment, Identifier [Axis]: Dover stable value fund | FGOLD 15YR GIANT | 3.50% - 05/01/2027 - 0    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 0  
Current Value $ 0  
Investment, Identifier [Axis]: Dover stable value fund | FGOLD 15YR GIANT | 3.50% - 06/01/2026 - 0    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 0  
Current Value $ 0  
Investment, Identifier [Axis]: Dover stable value fund | FGOLD 15YR GIANT | 3.50% - 07/01/2026 - 0    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 0  
Current Value $ 0  
Investment, Identifier [Axis]: Dover stable value fund | FGOLD 15YR GIANT | 3.50% - 08/01/2026 - 1    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 1  
Current Value $ 1,000  
Investment, Identifier [Axis]: Dover stable value fund | FGOLD 15YR GIANT | 3.50% - 08/01/2029 - 10    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 10  
Current Value $ 10,000  
Investment, Identifier [Axis]: Dover stable value fund | FGOLD 15YR GIANT | 3.50% - 08/01/2029 - 6    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 6  
Current Value $ 6,000  
Investment, Identifier [Axis]: Dover stable value fund | FGOLD 15YR GIANT | 3.50% - 08/01/2032 - 1    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 1  
Current Value $ 1,000  
Investment, Identifier [Axis]: Dover stable value fund | FGOLD 15YR GIANT | 3.50% - 08/01/2033 - 13    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 13  
Current Value $ 13,000  
Investment, Identifier [Axis]: Dover stable value fund | FGOLD 15YR GIANT | 3.50% - 09/01/2026 - 0    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 0  
Current Value $ 0  
Investment, Identifier [Axis]: Dover stable value fund | FGOLD 15YR GIANT | 3.50% - 09/01/2026 - 1    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 1  
Current Value $ 1,000  
Investment, Identifier [Axis]: Dover stable value fund | FGOLD 15YR GIANT | 3.50% - 09/01/2029 - 2    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 2  
Current Value $ 2,000  
Investment, Identifier [Axis]: Dover stable value fund | FGOLD 15YR GIANT | 3.50% - 10/01/2028 - 0    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 0  
Current Value $ 0  
Investment, Identifier [Axis]: Dover stable value fund | FGOLD 15YR GIANT | 3.50% - 11/01/2029 - 1    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 1  
Current Value $ 1,000  
Investment, Identifier [Axis]: Dover stable value fund | FGOLD 15YR GIANT | 3.50% - 11/01/2029 - 17    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 17  
Current Value $ 16,000  
Investment, Identifier [Axis]: Dover stable value fund | FGOLD 15YR GIANT | 3.50% - 12/01/2033 - 19    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 19  
Current Value $ 18,000  
Investment, Identifier [Axis]: Dover stable value fund | FGOLD 15YR GIANT | 4.00% - 04/01/2026 - 0    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.00%  
Par value $ 0  
Current Value $ 0  
Investment, Identifier [Axis]: Dover stable value fund | FGOLD 15YR GIANT | 4.00% - 05/01/2026 - 0    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.00%  
Par value $ 0  
Current Value 0  
Investment, Identifier [Axis]: Dover stable value fund | FGOLD 15YR GIANT | 4.00% - 06/01/2026 - 0    
EBP, Schedule of Asset Held for Investment [Line Items]    
Par value 0  
Current Value $ 0  
Investment, Identifier [Axis]: Dover stable value fund | FGOLD 15YR GIANT | 4.00% - 07/01/2026 - 0    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.00%  
Par value $ 0  
Current Value $ 0  
Investment, Identifier [Axis]: Dover stable value fund | FGOLD 15YR GIANT |4.00% - 06/01/2026 - 0    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.00%  
Investment, Identifier [Axis]: Dover stable value fund | FGOLD 15YR | 3.00% - 01/01/2033 - 54    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.00%  
Par value $ 54  
Current Value $ 53,000  
Investment, Identifier [Axis]: Dover stable value fund | FGOLD 15YR | 3.00% - 02/01/2027 - 0    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.00%  
Par value $ 0  
Current Value $ 0  
Investment, Identifier [Axis]: Dover stable value fund | FGOLD 15YR | 3.00% - 03/01/2033 - 27    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.00%  
Par value $ 27  
Current Value $ 26,000  
Investment, Identifier [Axis]: Dover stable value fund | FGOLD 15YR | 3.00% - 07/01/2032 - 3    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.00%  
Par value $ 3  
Current Value $ 2,000  
Investment, Identifier [Axis]: Dover stable value fund | FGOLD 15YR | 3.00% - 09/01/2026 - 0    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.00%  
Par value $ 0  
Current Value $ 0  
Investment, Identifier [Axis]: Dover stable value fund | FGOLD 15YR | 3.00% - 12/01/2026 - 0    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.00%  
Par value $ 0  
Current Value $ 0  
Investment, Identifier [Axis]: Dover stable value fund | FGOLD 15YR | 3.50% - 01/01/2027 - 0    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 0  
Current Value $ 0  
Investment, Identifier [Axis]: Dover stable value fund | FGOLD 15YR | 3.50% - 02/01/2026 - 0    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 0  
Current Value $ 0  
Investment, Identifier [Axis]: Dover stable value fund | FGOLD 15YR | 3.50% - 03/01/2026 - 0    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 0  
Current Value $ 0  
Investment, Identifier [Axis]: Dover stable value fund | FGOLD 15YR | 3.50% - 03/01/2027 - 2    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 2  
Current Value $ 2,000  
Investment, Identifier [Axis]: Dover stable value fund | FGOLD 15YR | 3.50% - 04/01/2026 - 0    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 0  
Current Value $ 0  
Investment, Identifier [Axis]: Dover stable value fund | FGOLD 15YR | 3.50% - 05/01/2026 - 0    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 0  
Current Value $ 0  
Investment, Identifier [Axis]: Dover stable value fund | FGOLD 15YR | 3.50% - 05/01/2032 - 6    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 6  
Current Value $ 6,000  
Investment, Identifier [Axis]: Dover stable value fund | FGOLD 15YR | 3.50% - 06/01/2026 - 0    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 0  
Current Value $ 0  
Investment, Identifier [Axis]: Dover stable value fund | FGOLD 15YR | 3.50% - 07/01/2026 - 0    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 0  
Current Value $ 0  
Investment, Identifier [Axis]: Dover stable value fund | FGOLD 15YR | 3.50% - 07/01/2026 - 1    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 1  
Current Value $ 1,000  
Investment, Identifier [Axis]: Dover stable value fund | FGOLD 15YR | 3.50% - 08/01/2026 - 0    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 0  
Current Value $ 0  
Investment, Identifier [Axis]: Dover stable value fund | FGOLD 15YR | 3.50% - 08/01/2026 - 1    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 1  
Current Value $ 1,000  
Investment, Identifier [Axis]: Dover stable value fund | FGOLD 15YR | 3.50% - 09/01/2026 - 0    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 0  
Current Value $ 0  
Investment, Identifier [Axis]: Dover stable value fund | FGOLD 15YR | 3.50% - 09/01/2026 - 1    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 1  
Current Value $ 1,000  
Investment, Identifier [Axis]: Dover stable value fund | FGOLD 15YR | 3.50% - 10/01/2026 - 0    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 0  
Current Value $ 0  
Investment, Identifier [Axis]: Dover stable value fund | FGOLD 15YR | 4.00% - 03/01/2026 - 0    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.00%  
Par value $ 0  
Current Value $ 0  
Investment, Identifier [Axis]: Dover stable value fund | FGOLD 15YR | 4.00% - 05/01/2026 - 0    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.00%  
Par value $ 0  
Current Value $ 0  
Investment, Identifier [Axis]: Dover stable value fund | FGOLD 15YR | 4.00% - 06/01/2026 - 1    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.00%  
Par value $ 1  
Current Value $ 1,000  
Investment, Identifier [Axis]: Dover stable value fund | FGOLD 30YR GIANT | 3.50% - 03/01/2045 - 5    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 5  
Current Value $ 4,000  
Investment, Identifier [Axis]: Dover stable value fund | FGOLD 30YR GIANT | 3.50% - 06/01/2045 - 7    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 7  
Current Value $ 7,000  
Investment, Identifier [Axis]: Dover stable value fund | FGOLD 30YR GIANT | 3.50% - 06/01/2046 - 5    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 5  
Current Value $ 5,000  
Investment, Identifier [Axis]: Dover stable value fund | FGOLD 30YR GIANT | 3.50% - 08/01/2046 - 12    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 12  
Current Value $ 11,000  
Investment, Identifier [Axis]: Dover stable value fund | FGOLD 30YR GIANT | 3.50% - 09/01/2045 - 3    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 3  
Current Value $ 3,000  
Investment, Identifier [Axis]: Dover stable value fund | FGOLD 30YR GIANT | 3.50% - 12/01/2045 - 7    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 7  
Current Value $ 7,000  
Investment, Identifier [Axis]: Dover stable value fund | FGOLD 30YR GIANT | 4.00% - 02/01/2045 - 2    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.00%  
Par value $ 2  
Current Value $ 2,000  
Investment, Identifier [Axis]: Dover stable value fund | FGOLD 30YR GIANT | 4.00% - 03/01/2045 - 3    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.00%  
Par value $ 3  
Current Value $ 3,000  
Investment, Identifier [Axis]: Dover stable value fund | FGOLD 30YR GIANT | 4.00% - 12/01/2042 - 14    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.00%  
Par value $ 14  
Current Value $ 13,000  
Investment, Identifier [Axis]: Dover stable value fund | FGOLD 30YR | 6.50% - 03/01/2032 - 2    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 6.50%  
Par value $ 2  
Current Value $ 3,000  
Investment, Identifier [Axis]: Dover stable value fund | FHLB | 2.13% - 12/11/2026 - 300    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 2.13%  
Par value $ 300  
Current Value $ 296,000  
Investment, Identifier [Axis]: Dover stable value fund | FHLB | 2.13% - 12/14/2029 - 1,750    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 2.13%  
Par value $ 1,750  
Current Value $ 1,648,000  
Investment, Identifier [Axis]: Dover stable value fund | FHLB | 3.00% - 03/12/2027 - 50    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.00%  
Par value $ 50  
Current Value $ 50,000  
Investment, Identifier [Axis]: Dover stable value fund | FHLB | 3.50% - 10/04/2027 - 325    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 325  
Current Value $ 325,000  
Investment, Identifier [Axis]: Dover stable value fund | FHLMC 15YR UMBS MIRROR | 2.50% - 04/01/2030 - 10    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 2.50%  
Par value $ 10  
Current Value $ 10,000  
Investment, Identifier [Axis]: Dover stable value fund | FHLMC 15YR UMBS MIRROR | 2.50% - 05/01/2033 - 84    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 2.50%  
Par value $ 84  
Current Value $ 80,000  
Investment, Identifier [Axis]: Dover stable value fund | FHLMC 15YR UMBS MIRROR | 2.50% - 07/01/2032 - 5    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 2.50%  
Par value $ 5  
Current Value $ 5,000  
Investment, Identifier [Axis]: Dover stable value fund | FHLMC 15YR UMBS MIRROR | 2.50% - 11/01/2032 - 80    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 2.50%  
Par value $ 80  
Current Value $ 77,000  
Investment, Identifier [Axis]: Dover stable value fund | FHLMC 15YR UMBS MIRROR | 3.00% - 01/01/2033 - 70    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.00%  
Par value $ 70  
Current Value $ 68,000  
Investment, Identifier [Axis]: Dover stable value fund | FHLMC 15YR UMBS MIRROR | 3.00% - 03/01/2031 - 76    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.00%  
Par value $ 76  
Current Value $ 74,000  
Investment, Identifier [Axis]: Dover stable value fund | FHLMC 15YR UMBS MIRROR | 3.00% - 04/01/2034 - 23    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.00%  
Par value $ 23  
Current Value $ 22,000  
Investment, Identifier [Axis]: Dover stable value fund | FHLMC 15YR UMBS SUPER | 2.00% - 06/01/2035 - 176    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 2.00%  
Par value $ 176  
Current Value $ 163,000  
Investment, Identifier [Axis]: Dover stable value fund | FHLMC 15YR UMBS SUPER | 2.00% - 09/01/2035 - 38    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 2.00%  
Par value $ 38  
Current Value $ 35,000  
Investment, Identifier [Axis]: Dover stable value fund | FHLMC 15YR UMBS SUPER | 2.00% - 10/01/2035 - 40    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 2.00%  
Par value $ 40  
Current Value $ 38,000  
Investment, Identifier [Axis]: Dover stable value fund | FHLMC 15YR UMBS SUPER | 2.50% - 08/01/2034 - 45    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 2.50%  
Par value $ 45  
Current Value $ 43,000  
Investment, Identifier [Axis]: Dover stable value fund | FHLMC 15YR UMBS SUPER | 2.50% - 09/01/2037 - 313    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 2.50%  
Par value $ 313  
Current Value $ 296,000  
Investment, Identifier [Axis]: Dover stable value fund | FHLMC 15YR UMBS SUPER | 2.50% - 10/01/2034 - 8    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 2.50%  
Par value $ 8  
Current Value $ 8,000  
Investment, Identifier [Axis]: Dover stable value fund | FHLMC 15YR UMBS SUPER | 3.00% - 01/01/2034 - 23    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.00%  
Par value $ 23  
Current Value $ 23,000  
Investment, Identifier [Axis]: Dover stable value fund | FHLMC 15YR UMBS SUPER | 3.00% - 08/01/2034 - 15    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.00%  
Par value $ 15  
Current Value $ 15,000  
Investment, Identifier [Axis]: Dover stable value fund | FHLMC 15YR UMBS SUPER | 5.00% - 07/01/2038 - 310    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 5.00%  
Par value $ 310  
Current Value $ 314,000  
Investment, Identifier [Axis]: Dover stable value fund | FHLMC 15YR UMBS SUPER | 5.50% - 08/01/2039 - 196    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 5.50%  
Par value $ 196  
Current Value $ 201,000  
Investment, Identifier [Axis]: Dover stable value fund | FHLMC 15YR UMBS SUPER | 5.50% - 11/01/2038 - 131    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 5.50%  
Par value $ 131  
Current Value $ 135,000  
Investment, Identifier [Axis]: Dover stable value fund | FHLMC 15YR UMBS | 2.00% - 08/01/2035 - 37    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 2.00%  
Par value $ 37  
Current Value $ 34,000  
Investment, Identifier [Axis]: Dover stable value fund | FHLMC 15YR UMBS | 2.00% - 08/01/2035 - 53    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 2.00%  
Par value $ 53  
Current Value $ 50,000  
Investment, Identifier [Axis]: Dover stable value fund | FHLMC 15YR UMBS | 3.00% - 12/01/2034 - 20    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.00%  
Par value $ 20  
Current Value $ 20,000  
Investment, Identifier [Axis]: Dover stable value fund | FHLMC 15YR UMBS | 3.00% - 12/01/2034 - 27    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.00%  
Par value $ 27  
Current Value $ 27,000  
Investment, Identifier [Axis]: Dover stable value fund | FHLMC GOLD 30YR | 3.50% - 03/01/2045 - 8    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 8  
Current Value $ 8,000  
Investment, Identifier [Axis]: Dover stable value fund | FHLMC GOLD 30YR | 3.50% - 05/01/2046 - 4    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 4  
Current Value $ 4,000  
Investment, Identifier [Axis]: Dover stable value fund | FHLMC_K059 | 3.12% - 09/25/2026 - 296    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.12%  
Par value $ 296  
Current Value $ 294,000  
Investment, Identifier [Axis]: Dover stable value fund | FHLMC_K060 | 3.30% - 10/25/2026 - 295    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.30%  
Par value $ 295  
Current Value $ 293,000  
Investment, Identifier [Axis]: Dover stable value fund | FHLMC_K063 | 3.43% - 01/25/2027 - 325    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.43%  
Par value $ 325  
Current Value $ 324,000  
Investment, Identifier [Axis]: Dover stable value fund | FHLMC_K066 | 2.80% - 12/25/2026 - 40    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 2.80%  
Par value $ 40  
Current Value $ 40,000  
Investment, Identifier [Axis]: Dover stable value fund | FHLMC_K072 | 3.44% - 12/25/2027 - 700    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.44%  
Par value $ 700  
Current Value $ 695,000  
Investment, Identifier [Axis]: Dover stable value fund | FHLMC_K078 | 3.85% - 06/25/2028 - 200    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.85%  
Par value $ 200  
Current Value $ 201,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 10/1 HYBRID ARM | 5.94% - 11/01/2033 - 2    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 5.94%  
Par value $ 2  
Current Value $ 2,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 10/1 HYBRID ARM | 6.07% - 12/01/2033 - 1    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 6.07%  
Par value $ 1  
Current Value $ 1,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 10/1 HYBRID ARM | 6.30% - 10/01/2034 - 2    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 6.30%  
Par value $ 2  
Current Value $ 2,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR UMBS SUPER | 2.00% - 07/01/2035 - 28    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 2.00%  
Par value $ 28  
Current Value $ 26,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR UMBS SUPER | 2.00% - 09/01/2035 - 102    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 2.00%  
Par value $ 102  
Current Value $ 94,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR UMBS SUPER | 5.00% - 02/01/2040 - 829    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 5.00%  
Par value $ 829  
Current Value $ 840,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR UMBS SUPER | 5.50% - 08/01/2039 - 193    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 5.50%  
Par value $ 193  
Current Value $ 198,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR UMBS SUPER | 5.50% - 11/01/2039 - 154    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 5.50%  
Par value $ 154  
Current Value $ 157,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR UMBS | 2.00% - 06/01/2035 - 12    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 2.00%  
Par value $ 12  
Current Value $ 11,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR UMBS | 2.00% - 07/01/2035 - 99    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 2.00%  
Par value $ 99  
Current Value $ 92,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR UMBS | 2.50% - 02/01/2035 - 76    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 2.50%  
Par value $ 76  
Current Value $ 72,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR UMBS | 2.50% - 08/01/2035 - 77    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 2.50%  
Par value $ 77  
Current Value $ 74,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR UMBS | 2.50% - 09/01/2034 - 34    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 2.50%  
Par value $ 34  
Current Value $ 32,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR UMBS | 2.50% - 10/01/2034 - 39    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 2.50%  
Par value $ 39  
Current Value $ 37,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR UMBS | 2.50% - 12/01/2034 - 29    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 2.50%  
Par value $ 29  
Current Value $ 28,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR UMBS | 3.00% - 08/01/2034 - 62    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.00%  
Par value $ 62  
Current Value $ 61,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR UMBS | 3.00% - 12/01/2034 - 15    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.00%  
Par value $ 15  
Current Value $ 15,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR UMBS | 4.00% - 11/01/2039 - 259    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.00%  
Par value $ 259  
Current Value $ 256,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR UMBS | 4.50% - 04/01/2038 - 347    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.50%  
Par value $ 347  
Current Value $ 347,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR UMBS | 4.50% - 11/01/2037 - 187    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.50%  
Par value $ 187  
Current Value $ 187,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR UMBS | 5.00% - 12/01/2037 - 288    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 5.00%  
Par value $ 288  
Current Value $ 293,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR | 2.00% - 02/01/2032 - 28    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 2.00%  
Par value $ 28  
Current Value $ 27,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR | 2.50% - 02/01/2033 - 87    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 2.50%  
Par value $ 87  
Current Value $ 84,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR | 3.00% - 01/01/2032 - 20    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.00%  
Par value $ 20  
Current Value $ 20,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR | 3.00% - 01/01/2034 - 4    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.00%  
Par value $ 4  
Current Value $ 3,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR | 3.00% - 02/01/2030 - 9    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.00%  
Par value $ 9  
Current Value $ 9,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR | 3.00% - 02/01/2031 - 11    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.00%  
Par value $ 11  
Current Value $ 11,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR | 3.00% - 02/01/2031 - 19    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.00%  
Par value $ 19  
Current Value $ 18,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR | 3.00% - 02/01/2034 - 17    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.00%  
Par value $ 17  
Current Value $ 16,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR | 3.00% - 03/01/2031 - 19    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.00%  
Par value $ 19  
Current Value $ 18,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR | 3.00% - 03/01/2031 - 25    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.00%  
Par value $ 25  
Current Value $ 24,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR | 3.00% - 03/01/2032 - 2    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.00%  
Par value $ 2  
Current Value $ 2,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR | 3.00% - 04/01/2031 - 14    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.00%  
Par value $ 14  
Current Value $ 14,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR | 3.00% - 04/01/2031 - 21    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.00%  
Par value $ 21  
Current Value $ 20,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR | 3.00% - 04/01/2032 - 20    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.00%  
Par value $ 20  
Current Value $ 19,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR | 3.00% - 04/01/2032 - 34    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.00%  
Par value $ 34  
Current Value $ 33,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR | 3.00% - 04/01/2032 - 45    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.00%  
Par value $ 45  
Current Value $ 44,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR | 3.00% - 05/01/2031 - 20    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.00%  
Par value $ 20  
Current Value $ 20,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR | 3.00% - 06/01/2032 - 3    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.00%  
Par value $ 3  
Current Value $ 3,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR | 3.00% - 06/01/2034 - 12    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.00%  
Par value $ 12  
Current Value $ 12,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR | 3.00% - 07/01/2029 - 4    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.00%  
Par value $ 4  
Current Value $ 4,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR | 3.00% - 07/01/2030 - 3    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.00%  
Par value $ 3  
Current Value $ 3,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR | 3.00% - 07/01/2032 - 30    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.00%  
Par value $ 30  
Current Value $ 29,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR | 3.00% - 08/01/2031 - 25    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.00%  
Par value $ 25  
Current Value $ 24,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR | 3.00% - 09/01/2029 - 19    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.00%  
Par value $ 19  
Current Value $ 19,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR | 3.00% - 09/01/2030 - 12    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.00%  
Par value $ 12  
Current Value $ 11,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR | 3.00% - 09/01/2031 - 2    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.00%  
Par value $ 2  
Current Value $ 2,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR | 3.00% - 09/01/2032 - 46    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.00%  
Par value $ 46  
Current Value $ 45,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR | 3.00% - 09/01/2033 - 83    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.00%  
Par value $ 83  
Current Value $ 81,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR | 3.00% - 10/01/2030 - 1    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.00%  
Par value $ 1  
Current Value $ 1,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR | 3.00% - 10/01/2030 - 20    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.00%  
Par value $ 20  
Current Value $ 20,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR | 3.00% - 10/01/2030 - 3    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.00%  
Par value $ 3  
Current Value $ 3,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR | 3.00% - 10/01/2033 - 20    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.00%  
Par value $ 20  
Current Value $ 20,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR | 3.00% - 11/01/2030 - 14    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.00%  
Par value $ 14  
Current Value $ 14,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR | 3.00% - 11/01/2031 - 1    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.00%  
Par value $ 1  
Current Value $ 1,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR | 3.00% - 11/01/2031 - 23    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.00%  
Par value $ 23  
Current Value $ 22,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR | 3.00% - 12/01/2033 - 3    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.00%  
Par value $ 3  
Current Value $ 2,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR | 3.50% - 01/01/2026 - 0    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 0  
Current Value $ 0  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR | 3.50% - 01/01/2027 - 1    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 1  
Current Value $ 1,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR | 3.50% - 01/01/2027 - 3    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 3  
Current Value $ 3,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR | 3.50% - 01/01/2029 - 1    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 1  
Current Value $ 1,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR | 3.50% - 02/01/2026 - 0    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 0  
Current Value $ 0  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR | 3.50% - 02/01/2029 - 8    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 8  
Current Value $ 8,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR | 3.50% - 02/01/2031 - 11    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 11  
Current Value $ 11,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR | 3.50% - 02/01/2032 - 57    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 57  
Current Value $ 57,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR | 3.50% - 03/01/2026 - 0    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 0  
Current Value $ 0  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR | 3.50% - 04/01/2026 - 0    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 0  
Current Value $ 0  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR | 3.50% - 04/01/2030 - 6    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 6  
Current Value $ 6,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR | 3.50% - 06/01/2027 - 0    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 0  
Current Value $ 0  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR | 3.50% - 06/01/2029 - 10    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 10  
Current Value $ 10,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR | 3.50% - 06/01/2030 - 26    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 26  
Current Value $ 26,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR | 3.50% - 07/01/2029 - 11    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 11  
Current Value $ 11,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR | 3.50% - 08/01/2026 - 0    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 0  
Current Value $ 0  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR | 3.50% - 08/01/2026 - 1    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 1  
Current Value $ 1,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR | 3.50% - 08/01/2027 - 2    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 2  
Current Value $ 2,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR | 3.50% - 08/01/2029 - 1    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 1  
Current Value $ 1,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR | 3.50% - 08/01/2029 - 2    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 2  
Current Value $ 2,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR | 3.50% - 09/01/2026 - 0    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 0  
Current Value $ 0  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR | 3.50% - 09/01/2029 - 2    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 2  
Current Value $ 2,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR | 3.50% - 09/01/2033 - 10    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 10  
Current Value $ 10,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR | 3.50% - 10/01/2026 - 0    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 0  
Current Value $ 0  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR | 3.50% - 10/01/2026 - 3    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 3  
Current Value $ 3,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR | 3.50% - 10/01/2028 - 18    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 18  
Current Value $ 18,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR | 3.50% - 10/01/2029 - 3    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 3  
Current Value $ 3,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR | 3.50% - 11/01/2026 - 0    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 0  
Current Value $ 0  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR | 3.50% - 11/01/2027 - 1    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 1  
Current Value $ 1,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR | 3.50% - 11/01/2028 - 4    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 4  
Current Value $ 4,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR | 3.50% - 11/01/2032 - 20    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 20  
Current Value $ 20,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR | 3.50% - 12/01/2028 - 1    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 1  
Current Value $ 1,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR | 3.50% - 12/01/2029 - 2    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 2  
Current Value $ 2,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR | 4.00% - 01/01/2029 - 1    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.00%  
Par value $ 1  
Current Value $ 1,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR | 4.00% - 03/01/2026 - 0    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.00%  
Par value $ 0  
Current Value $ 0  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR | 4.00% - 05/01/2026 - 0    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.00%  
Par value $ 0  
Current Value $ 0  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR | 4.00% - 11/01/2026 - 0    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.00%  
Par value $ 0  
Current Value $ 0  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 15YR | 4.50% - 06/01/2026 - 0    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.50%  
Par value $ 0  
Current Value $ 0  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 30YR UMBS | 3.50% - 08/01/2049 - 21    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 21  
Current Value $ 19,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 30YR | 3.50% - 01/01/2046 - 7    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 7  
Current Value $ 6,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 30YR | 3.50% - 03/01/2046 - 1    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 1  
Current Value $ 1,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 30YR | 3.50% - 03/01/2046 - 3    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 3  
Current Value $ 3,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 30YR | 3.50% - 04/01/2049 - 5    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 5  
Current Value $ 5,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 30YR | 3.50% - 06/01/2045 - 7    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 7  
Current Value $ 7,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 30YR | 3.50% - 11/01/2045 - 19    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 19  
Current Value $ 18,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 30YR | 3.50% - 12/01/2045 - 2    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 2  
Current Value $ 2,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 30YR | 3.50% - 12/01/2045 - 6    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 6  
Current Value $ 5,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 30YR | 4.00% - 03/01/2047 - 23    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.00%  
Par value $ 23  
Current Value $ 23,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 30YR | 4.00% - 08/01/2044 - 16    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.00%  
Par value $ 16  
Current Value $ 16,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 30YR | 4.00% - 08/01/2047 - 12    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.00%  
Par value $ 12  
Current Value $ 12,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 30YR | 4.00% - 10/01/2044 - 5    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.00%  
Par value $ 5  
Current Value $ 5,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 30YR | 4.00% - 10/01/2045 - 2    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.00%  
Par value $ 2  
Current Value $ 2,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 30YR | 4.00% - 12/01/2041 - 6    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.00%  
Par value $ 6  
Current Value $ 6,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 30YR | 4.50% - 10/01/2043 - 5    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.50%  
Par value $ 5  
Current Value $ 5,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 30YR | 5.00% - 03/01/2036 - 4    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 5.00%  
Par value $ 4  
Current Value $ 4,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 30YR | 5.00% - 08/01/2034 - 6    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 5.00%  
Par value $ 6  
Current Value $ 6,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 30YR | 5.50% - 02/01/2029 - 3    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 5.50%  
Par value $ 3  
Current Value $ 3,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 30YR | 5.50% - 03/01/2033 - 2    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 5.50%  
Par value $ 2  
Current Value $ 2,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 30YR | 5.50% - 03/01/2033 - 9    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 5.50%  
Par value $ 9  
Current Value $ 9,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 30YR | 5.50% - 08/01/2033 - 0    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 5.50%  
Par value $ 0  
Current Value $ 0  
Investment, Identifier [Axis]: Dover stable value fund | FNMA 30YR | 5.50% - 10/01/2032 - 2    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 5.50%  
Par value $ 2  
Current Value $ 2,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA BENCHMARK NOTES | 6.63% - 11/15/2030 - 1,575    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 6.63%  
Par value $ 1,575  
Current Value $ 1,776,000  
Investment, Identifier [Axis]: Dover stable value fund | FNMA_03-W11 | 7.27% - 06/25/2033 - 1    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 7.27%  
Par value $ 1  
Current Value $ 1,000  
Investment, Identifier [Axis]: Dover stable value fund | FORDO_23-A | 4.65% - 02/15/2028 - 193    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.65%  
Par value $ 193  
Current Value $ 194,000  
Investment, Identifier [Axis]: Dover stable value fund | FORDO_25-A | 4.45% - 10/15/2029 - 750    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.45%  
Par value $ 750  
Current Value $ 758,000  
Investment, Identifier [Axis]: Dover stable value fund | FORDR_21-2 | 1.53% - 05/15/2034 - 750    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 1.53%  
Par value $ 750  
Current Value $ 735,000  
Investment, Identifier [Axis]: Dover stable value fund | FOUNDRY JV HOLDCO LLC | 5.50% - 01/25/2031 - 325    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 5.50%  
Par value $ 325  
Current Value $ 336,000  
Investment, Identifier [Axis]: Dover stable value fund | GE HEALTHCARE TECHNOLOGIE | 4.80% - 01/15/2031 - 325    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.80%  
Par value $ 325  
Current Value $ 331,000  
Investment, Identifier [Axis]: Dover stable value fund | GILEAD SCIENCES INC | 4.80% - 11/15/2029 - 325    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.80%  
Par value $ 325  
Current Value $ 334,000  
Investment, Identifier [Axis]: Dover stable value fund | GNMA2 30YR | 3.50% - 01/20/2047 - 27    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 27  
Current Value $ 25,000  
Investment, Identifier [Axis]: Dover stable value fund | GNMA2 30YR | 3.50% - 04/20/2047 - 23    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 23  
Current Value $ 22,000  
Investment, Identifier [Axis]: Dover stable value fund | GNMA2 30YR | 3.50% - 07/20/2046 - 22    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.50%  
Par value $ 22  
Current Value $ 20,000  
Investment, Identifier [Axis]: Dover stable value fund | GOLDMAN SACHS GROUP INC/T | 5.22% - 04/23/2031 - 750    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 5.22%  
Par value $ 750  
Current Value $ 774,000  
Investment, Identifier [Axis]: Dover stable value fund | GSMS_16-GS3 | 2.78% - 10/10/2049 - 9    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 2.78%  
Par value $ 9  
Current Value $ 9,000  
Investment, Identifier [Axis]: Dover stable value fund | GSMS_17-GS7 | 3.20% - 08/10/2050 - 57    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.20%  
Par value $ 57  
Current Value $ 56,000  
Investment, Identifier [Axis]: Dover stable value fund | GSMS_19-GC42 | 2.91% - 09/10/2052 - 263    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 2.91%  
Par value $ 263  
Current Value $ 257,000  
Investment, Identifier [Axis]: Dover stable value fund | HALST_24-C | 4.62% - 04/17/2028 - 450    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.62%  
Par value $ 450  
Current Value $ 453,000  
Investment, Identifier [Axis]: Dover stable value fund | HART_25-A | 4.32% - 10/15/2029 - 225    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.32%  
Par value $ 225  
Current Value $ 227,000  
Investment, Identifier [Axis]: Dover stable value fund | HART_25-B | 4.36% - 12/17/2029 - 350    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.36%  
Par value $ 350  
Current Value $ 353,000  
Investment, Identifier [Axis]: Dover stable value fund | HCA INC | 5.45% - 04/01/2031 - 365    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 5.45%  
Par value $ 365  
Current Value $ 381,000  
Investment, Identifier [Axis]: Dover stable value fund | HONEYWELL INTERNATIONAL I | 4.70% - 02/01/2030 - 300    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.70%  
Par value $ 300  
Current Value $ 307,000  
Investment, Identifier [Axis]: Dover stable value fund | HSBC HOLDINGS PLC | 4.62% - 11/06/2031 - 700    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.62%  
Par value $ 700  
Current Value $ 702,000  
Investment, Identifier [Axis]: Dover stable value fund | JDOT_23-A | 5.01% - 11/15/2027 - 203    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 5.01%  
Par value $ 203  
Current Value $ 204,000  
Investment, Identifier [Axis]: Dover stable value fund | JDOT_25-B | 4.34% - 06/15/2032 - 700    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.34%  
Par value $ 700  
Current Value $ 708,000  
Investment, Identifier [Axis]: Dover stable value fund | JOHN DEERE CAPITAL CORP | 4.55% - 06/05/2030 - 350    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.55%  
Par value $ 350  
Current Value $ 356,000  
Investment, Identifier [Axis]: Dover stable value fund | JPMBB_16-C1 | 3.58% - 03/17/2049 - 128    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.58%  
Par value $ 128  
Current Value $ 128,000  
Investment, Identifier [Axis]: Dover stable value fund | JPMCC_16-JP4 | 3.47% - 12/15/2049 - 18    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.47%  
Par value $ 18  
Current Value $ 18,000  
Investment, Identifier [Axis]: Dover stable value fund | JPMCC_17-JP5 | 3.55% - 03/15/2050 - 222    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.55%  
Par value $ 222  
Current Value $ 221,000  
Investment, Identifier [Axis]: Dover stable value fund | JPMORGAN CHASE & CO | 5.00% - 07/22/2030 - 900    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 5.00%  
Par value $ 900  
Current Value $ 924,000  
Investment, Identifier [Axis]: Dover stable value fund | KCOT_23-1A | 5.02% - 06/15/2027 - 332    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 5.02%  
Par value $ 332  
Current Value $ 333,000  
Investment, Identifier [Axis]: Dover stable value fund | KCOT_24-2A | 5.26% - 11/15/2028 - 500    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 5.26%  
Par value $ 500  
Current Value $ 508,000  
Investment, Identifier [Axis]: Dover stable value fund | KINDER MORGAN INC | 5.15% - 06/01/2030 - 103    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 5.15%  
Par value $ 103  
Current Value $ 107,000  
Investment, Identifier [Axis]: Dover stable value fund | L3HARRIS TECHNOLOGIES INC | 5.05% - 06/01/2029 - 325    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 5.05%  
Par value $ 325  
Current Value $ 334,000  
Investment, Identifier [Axis]: Dover stable value fund | LOCKHEED MARTIN CORPORATI | 4.40% - 08/15/2030 - 335    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.40%  
Par value $ 335  
Current Value $ 338,000  
Investment, Identifier [Axis]: Dover stable value fund | LYB INTERNATIONAL FINANCE | 5.13% - 01/15/2031 - 350    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 5.13%  
Par value $ 350  
Current Value $ 351,000  
Investment, Identifier [Axis]: Dover stable value fund | MBALT_25-A | 4.61% - 04/16/2029 - 325    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.61%  
Par value $ 325  
Current Value $ 329,000  
Investment, Identifier [Axis]: Dover stable value fund | MERCK & CO INC | 4.15% - 03/15/2031 - 400    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.15%  
Par value $ 400  
Current Value $ 399,000  
Investment, Identifier [Axis]: Dover stable value fund | MET TOWER GLOBAL FUNDING | 4.20% - 09/16/2030 - 325    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.20%  
Par value $ 325  
Current Value $ 323,000  
Investment, Identifier [Axis]: Dover stable value fund | MMAF_20-A | 0.97% - 04/09/2027 - 66    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 0.97%  
Par value $ 66  
Current Value $ 66,000  
Investment, Identifier [Axis]: Dover stable value fund | MONDELEZ INTERNATIONAL IN | 2.63% - 03/17/2027 - 350    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 2.63%  
Par value $ 350  
Current Value $ 345,000  
Investment, Identifier [Axis]: Dover stable value fund | MORGAN STANLEY | 5.04% - 07/19/2030 - 775    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 5.04%  
Par value $ 775  
Current Value $ 795,000  
Investment, Identifier [Axis]: Dover stable value fund | MSBAM_17-C33 | 3.40% - 05/15/2050 - 72    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.40%  
Par value $ 72  
Current Value $ 72,000  
Investment, Identifier [Axis]: Dover stable value fund | MSC_16-UBS9 | 3.59% - 03/15/2049 - 11    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.59%  
Par value $ 11  
Current Value $ 11,000  
Investment, Identifier [Axis]: Dover stable value fund | MSC_17-H1 | 3.30% - 06/15/2050 - 39    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.30%  
Par value $ 39  
Current Value $ 39,000  
Investment, Identifier [Axis]: Dover stable value fund | NAROT_25-A | 4.49% - 12/17/2029 - 875    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.49%  
Par value $ 875  
Current Value $ 887,000  
Investment, Identifier [Axis]: Dover stable value fund | NEXTERA ENERGY CAPITAL HO | 5.05% - 03/15/2030 - 325    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 5.05%  
Par value $ 325  
Current Value $ 335,000  
Investment, Identifier [Axis]: Dover stable value fund | NISOURCE INC | 5.20% - 07/01/2029 - 325    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 5.20%  
Par value $ 325  
Current Value $ 335,000  
Investment, Identifier [Axis]: Dover stable value fund | NORFOLK SOUTHERN CORPORAT | 2.55% - 11/01/2029 - 325    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 2.55%  
Par value $ 325  
Current Value $ 307,000  
Investment, Identifier [Axis]: Dover stable value fund | ONTARIO (PROVINCE OF) | 2.30% - 06/15/2026 - 450    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 2.30%  
Par value $ 450  
Current Value $ 447,000  
Investment, Identifier [Axis]: Dover stable value fund | ORACLE CORPORATION | 4.45% - 09/26/2030 - 375    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.45%  
Par value $ 375  
Current Value $ 367,000  
Investment, Identifier [Axis]: Dover stable value fund | PEPSICO INC | 4.60% - 02/07/2030 - 325    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.60%  
Par value $ 325  
Current Value $ 332,000  
Investment, Identifier [Axis]: Dover stable value fund | PFIZER INC | 4.20% - 11/15/2030 - 350    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.20%  
Par value $ 350  
Current Value $ 352,000  
Investment, Identifier [Axis]: Dover stable value fund | PNC FINANCIAL SERVICES GR | 5.49% - 05/14/2030 - 300    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 5.49%  
Par value $ 300  
Current Value $ 312,000  
Investment, Identifier [Axis]: Dover stable value fund | PPL CAPITAL FUNDING INC | 3.10% - 05/15/2026 - 325    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.10%  
Par value $ 325  
Current Value $ 324,000  
Investment, Identifier [Axis]: Dover stable value fund | PRICOA GLOBAL FUNDING I | 4.35% - 11/25/2030 - 325    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.35%  
Par value $ 325  
Current Value $ 326,000  
Investment, Identifier [Axis]: Dover stable value fund | PRINCIPAL LIFE GLOBAL FUN | 5.10% - 01/25/2029 - 225    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 5.10%  
Par value $ 225  
Current Value $ 230,000  
Investment, Identifier [Axis]: Dover stable value fund | PROCTER & GAMBLE CO | 4.05% - 05/01/2030 - 350    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.05%  
Par value $ 350  
Current Value $ 352,000  
Investment, Identifier [Axis]: Dover stable value fund | PROG_25-SFR4 | 4.30% - 08/19/2042 - 750    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.30%  
Par value $ 750  
Current Value 742,000  
Investment, Identifier [Axis]: Dover stable value fund | Principal Life | Traditional guaranteed investment contract    
EBP, Schedule of Asset Held for Investment [Line Items]    
Current Value $ 1,347,000  
Investment, Identifier [Axis]: Dover stable value fund | ROYAL BANK OF CANADA | 4.65% - 10/18/2030 - 400    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.65%  
Par value $ 400  
Current Value $ 405,000  
Investment, Identifier [Axis]: Dover stable value fund | SBALT_24-A | 5.24% - 01/22/2029 - 700    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 5.24%  
Par value $ 700  
Current Value $ 703,000  
Investment, Identifier [Axis]: Dover stable value fund | SHELL FINANCE US INC | 4.13% - 11/06/2030 - 375    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.13%  
Par value $ 375  
Current Value $ 375,000  
Investment, Identifier [Axis]: Dover stable value fund | SIEMENS FUNDING B.V. | 4.60% - 05/28/2030 - 375    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.60%  
Par value $ 375  
Current Value $ 383,000  
Investment, Identifier [Axis]: Dover stable value fund | SKANDINAVISKA ENSKILDA BA | 4.50% - 09/03/2030 - 200    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.50%  
Par value $ 200  
Current Value $ 201,000  
Investment, Identifier [Axis]: Dover stable value fund | SOUTHERN POWER COMPANY | 4.25% - 10/01/2030 - 350    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.25%  
Par value $ 350  
Current Value $ 349,000  
Investment, Identifier [Axis]: Dover stable value fund | STATE STREET CORPORATION | 5.68% - 11/21/2029 - 350    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 5.68%  
Par value $ 350  
Current Value $ 367,000  
Investment, Identifier [Axis]: Dover stable value fund | SYNOPSYS INC | 4.85% - 04/01/2030 - 325    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.85%  
Par value $ 325  
Current Value $ 332,000  
Investment, Identifier [Axis]: Dover stable value fund | T-MOBILE USA INC | 3.88% - 04/15/2030 - 385    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.88%  
Par value $ 385  
Current Value $ 378,000  
Investment, Identifier [Axis]: Dover stable value fund | TAOT_23-C | 5.16% - 04/17/2028 - 220    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 5.16%  
Par value $ 220  
Current Value $ 221,000  
Investment, Identifier [Axis]: Dover stable value fund | TAOT_25-C | 4.11% - 03/15/2030 - 775    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.11%  
Par value $ 775  
Current Value $ 780,000  
Investment, Identifier [Axis]: Dover stable value fund | TARGET CORPORATION | 4.35% - 06/15/2028 - 350    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.35%  
Par value $ 350  
Current Value $ 354,000  
Investment, Identifier [Axis]: Dover stable value fund | TORONTO-DOMINION BANK/THE | 4.81% - 06/03/2030 - 375    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.81%  
Par value $ 375  
Current Value $ 383,000  
Investment, Identifier [Axis]: Dover stable value fund | TREASURY NOTE | 4.13% - 08/31/2030 - 8,115    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.13%  
Par value $ 8,115  
Current Value $ 8,258,000  
Investment, Identifier [Axis]: Dover stable value fund | TRUIST FINANCIAL CORP | 5.44% - 01/24/2030 - 300    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 5.44%  
Par value $ 300  
Current Value $ 311,000  
Investment, Identifier [Axis]: Dover stable value fund | UBSCM_17-C1 | 3.26% - 06/15/2050 - 9    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.26%  
Par value $ 9  
Current Value $ 9,000  
Investment, Identifier [Axis]: Dover stable value fund | UBSCM_17-C3 | 3.22% - 08/15/2050 - 213    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.22%  
Par value $ 213  
Current Value $ 212,000  
Investment, Identifier [Axis]: Dover stable value fund | UBSCM_18-C12 | 4.19% - 08/15/2051 - 309    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.19%  
Par value $ 309  
Current Value $ 309,000  
Investment, Identifier [Axis]: Dover stable value fund | UBSCM_18-C8 | 3.72% - 02/15/2051 - 480    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.72%  
Par value $ 480  
Current Value $ 476,000  
Investment, Identifier [Axis]: Dover stable value fund | UMBS 15YR TBA(REG B) | 4.00% - 01/20/2041 - 2,100    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.00%  
Par value $ 2,100  
Current Value $ 2,072,000  
Investment, Identifier [Axis]: Dover stable value fund | UMBS 15YR TBA(REG B) | 4.50% - 01/20/2041 - 2,225    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.50%  
Par value $ 2,225  
Current Value $ 2,226,000  
Investment, Identifier [Axis]: Dover stable value fund | UNION PACIFIC CORPORATION | 2.40% - 02/05/2030 - 325    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 2.40%  
Par value $ 325  
Current Value $ 304,000  
Investment, Identifier [Axis]: Dover stable value fund | UNITED TECHNOLOGIES CORPO | 4.13% - 11/16/2028 - 350    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.13%  
Par value $ 350  
Current Value $ 351,000  
Investment, Identifier [Axis]: Dover stable value fund | UNITEDHEALTH GROUP INC | 4.80% - 01/15/2030 - 400    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.80%  
Par value $ 400  
Current Value $ 410,000  
Investment, Identifier [Axis]: Dover stable value fund | US BANCORP | 5.05% - 02/12/2031 - 425    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 5.05%  
Par value $ 425  
Current Value 437,000  
Investment, Identifier [Axis]: Dover stable value fund | United of Omaha | Traditional guaranteed investment contract 1    
EBP, Schedule of Asset Held for Investment [Line Items]    
Current Value 1,350,000  
Investment, Identifier [Axis]: Dover stable value fund | United of Omaha | Traditional guaranteed investment contract 2    
EBP, Schedule of Asset Held for Investment [Line Items]    
Current Value $ 1,369,000  
Investment, Identifier [Axis]: Dover stable value fund | VALET_24-1 | 4.63% - 07/20/2029 - 675    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.63%  
Par value $ 675  
Current Value $ 684,000  
Investment, Identifier [Axis]: Dover stable value fund | VERIZON COMMUNICATIONS IN | 2.10% - 03/22/2028 - 400    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 2.10%  
Par value $ 400  
Current Value $ 384,000  
Investment, Identifier [Axis]: Dover stable value fund | VOYA GLOBAL FUNDING | 4.60% - 11/24/2030 - 300    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.60%  
Par value $ 300  
Current Value $ 301,000  
Investment, Identifier [Axis]: Dover stable value fund | VWALT_24-A | 5.20% - 12/20/2028 - 375    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 5.20%  
Par value $ 375  
Current Value $ 379,000  
Investment, Identifier [Axis]: Dover stable value fund | VWALT_25-A | 4.50% - 06/20/2028 - 500    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.50%  
Par value $ 500  
Current Value $ 505,000  
Investment, Identifier [Axis]: Dover stable value fund | VZMT_24-8 | 4.62% - 11/20/2030 - 575    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.62%  
Par value $ 575  
Current Value $ 584,000  
Investment, Identifier [Axis]: Dover stable value fund | VZMT_25-1 | 4.71% - 01/21/2031 - 1,100    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.71%  
Par value $ 1,100  
Current Value $ 1,119,000  
Investment, Identifier [Axis]: Dover stable value fund | VZMT_25-5 | 4.40% - 06/20/2031 - 350    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.40%  
Par value $ 350  
Current Value $ 354,000  
Investment, Identifier [Axis]: Dover stable value fund | WEC ENERGY GROUP INC | 4.75% - 01/15/2028 - 325    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.75%  
Par value $ 325  
Current Value $ 330,000  
Investment, Identifier [Axis]: Dover stable value fund | WELLS FARGO & COMPANY | 5.15% - 04/23/2031 - 775    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 5.15%  
Par value $ 775  
Current Value $ 800,000  
Investment, Identifier [Axis]: Dover stable value fund | WFCIT_24-A1 | 4.94% - 02/15/2029 - 350    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.94%  
Par value $ 350  
Current Value $ 354,000  
Investment, Identifier [Axis]: Dover stable value fund | WFCM_16-BNK1 | 2.40% - 08/15/2049 - 311    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 2.40%  
Par value $ 311  
Current Value $ 309,000  
Investment, Identifier [Axis]: Dover stable value fund | WFCM_16-LC25 | 3.49% - 12/15/2059 - 2    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.49%  
Par value $ 2  
Current Value $ 2,000  
Investment, Identifier [Axis]: Dover stable value fund | WFCM_17-C40 | 2.50% - 10/15/2050 - 143    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 2.50%  
Par value $ 143  
Current Value $ 142,000  
Investment, Identifier [Axis]: Dover stable value fund | WFCM_17-C40 | 3.32% - 10/15/2050 - 430    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 3.32%  
Par value $ 430  
Current Value $ 425,000  
Investment, Identifier [Axis]: Dover stable value fund | WFCM_18-C45 | 4.15% - 06/15/2051 - 147    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.15%  
Par value $ 147  
Current Value $ 147,000  
Investment, Identifier [Axis]: Dover stable value fund | WFCM_18-C46 | 4.09% - 08/15/2051 - 183    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.09%  
Par value $ 183  
Current Value $ 184,000  
Investment, Identifier [Axis]: Dover stable value fund | WFCM_19-C52 | 2.83% - 08/15/2052 - 1,674    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 2.83%  
Par value $ 1,674  
Current Value $ 1,639,000  
Investment, Identifier [Axis]: Dover stable value fund | WILLIAMS COMPANIES INC | 4.63% - 06/30/2030 - 325    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.63%  
Par value $ 325  
Current Value $ 329,000  
Investment, Identifier [Axis]: Dover stable value fund | WOART_24-A | 4.84% - 10/15/2029 - 465    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.84%  
Par value $ 465  
Current Value $ 472,000  
Investment, Identifier [Axis]: Dover stable value fund | WOART_24-B | 5.27% - 09/17/2029 - 431    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 5.27%  
Par value $ 431  
Current Value $ 435,000  
Investment, Identifier [Axis]: Dover stable value fund | WOSAT_24-A | 4.98% - 02/15/2030 - 350    
EBP, Schedule of Asset Held for Investment [Line Items]    
Interest Rate 4.98%  
Par value $ 350  
Current Value 352,000  
Investment, Identifier [Axis]: GQG | GQG Partners International Equity CIT CL C    
EBP, Schedule of Asset Held for Investment [Line Items]    
Current Value 36,808,000  
Investment, Identifier [Axis]: Interest-bearing cash | Columbia | Money market funds    
EBP, Schedule of Asset Held for Investment [Line Items]    
Current Value 5,430,000  
Investment, Identifier [Axis]: Interest-bearing cash | Merrill Lynch Bank | Deposit program    
EBP, Schedule of Asset Held for Investment [Line Items]    
Current Value 2,768,000  
Investment, Identifier [Axis]: Prudential | Prudential Core Plus Bond 6    
EBP, Schedule of Asset Held for Investment [Line Items]    
Current Value 29,606,000  
Investment, Identifier [Axis]: Snyder | Small/Mid Cap Value Class R2    
EBP, Schedule of Asset Held for Investment [Line Items]    
Current Value 46,477,000  
Investment, Identifier [Axis]: Stock fund | Dover Corporation | Dover Stock Fund    
EBP, Schedule of Asset Held for Investment [Line Items]    
Current Value 419,699,000  
Investment, Identifier [Axis]: Vanguard | Vanguard Institutional Extended Market Index Unit D    
EBP, Schedule of Asset Held for Investment [Line Items]    
Current Value 89,414,000  
Investment, Identifier [Axis]: Vanguard | Vanguard Institutional Total International Stock Market Index Trust Unit D    
EBP, Schedule of Asset Held for Investment [Line Items]    
Current Value $ 48,021,000