Long-Term Debt - Outstanding Long-Term Debt (Detail) - USD ($)
$ in Thousands |
3 Months Ended |
|
Mar. 31, 2026 |
Dec. 31, 2025 |
| Debt Instrument [Line Items] |
|
|
| Total long-term debt |
$ (1,500,000)
|
|
| Debt Instrument, Unused Borrowing Capacity, Amount |
343,300
|
|
| Total Long-term debt |
1,459,900
|
$ 1,461,700
|
| Less: current maturities |
(134,600)
|
(134,600)
|
| Less: debt issuance costs |
3,500
|
3,600
|
| Total long-term debt, net of current maturities |
1,325,300
|
1,327,100
|
| 5.68% note, due June 30, 2026 [Member] |
|
|
| Debt Instrument [Line Items] |
|
|
| Total long-term debt |
$ (2,900)
|
(2,900)
|
| Debt Instrument, Interest Rate, Stated Percentage |
5.68%
|
|
| Debt instrument, maturity date |
Jun. 30, 2026
|
|
| 6.43% note, due May 2, 2028 [Member] |
|
|
| Debt Instrument [Line Items] |
|
|
| Total long-term debt |
$ (2,100)
|
(2,100)
|
| Debt Instrument, Interest Rate, Stated Percentage |
6.43%
|
|
| Debt instrument, maturity date |
May 02, 2028
|
|
| 3.73% note, due December 16, 2028 [Member] |
|
|
| Debt Instrument [Line Items] |
|
|
| Total long-term debt |
$ (6,000)
|
(6,000)
|
| Debt Instrument, Interest Rate, Stated Percentage |
3.73%
|
|
| Debt instrument, maturity date |
Dec. 16, 2028
|
|
| 3.88% note, due May 15, 2029 [Member] |
|
|
| Debt Instrument [Line Items] |
|
|
| Total long-term debt |
$ (20,000)
|
(20,000)
|
| Debt Instrument, Interest Rate, Stated Percentage |
3.88%
|
|
| Debt instrument, maturity date |
May 15, 2029
|
|
| 3.25% note, due April 30, 2032 [Member] |
|
|
| Debt Instrument [Line Items] |
|
|
| Total long-term debt |
$ (43,800)
|
(45,500)
|
| 3.48% note, due May 31, 2038 [Member] |
|
|
| Debt Instrument [Line Items] |
|
|
| Total long-term debt |
(50,000)
|
(50,000)
|
| Uncollateralized Senior Note Due November Two Thousand Thirty Eight [Member] |
|
|
| Debt Instrument [Line Items] |
|
|
| Total long-term debt |
$ (50,000)
|
(50,000)
|
| Debt Instrument, Interest Rate, Stated Percentage |
3.58%
|
|
| Debt instrument, maturity date |
Nov. 30, 2038
|
|
| Uncollateralized Senior Note Due July Two Thousand Thirty Five |
|
|
| Debt Instrument [Line Items] |
|
|
| Total long-term debt |
$ (50,000)
|
(50,000)
|
| Debt Instrument, Interest Rate, Stated Percentage |
3.00%
|
|
| Debt instrument, maturity date |
Jul. 15, 2035
|
|
| Uncollateralized Senior Note Due August Two Thousand Thirty Five |
|
|
| Debt Instrument [Line Items] |
|
|
| Total long-term debt |
$ (40,000)
|
(40,000)
|
| Debt Instrument, Interest Rate, Stated Percentage |
2.96%
|
|
| Debt instrument, maturity date |
Aug. 15, 2035
|
|
| Uncollateralized Senior Note Due November Two Thousand Thirty Nine |
|
|
| Debt Instrument [Line Items] |
|
|
| Total long-term debt |
$ (100,000)
|
(100,000)
|
| Equipment Security Note |
|
|
| Debt Instrument [Line Items] |
|
|
| Total long-term debt |
$ (5,600)
|
(5,800)
|
| Debt Instrument, Interest Rate, Stated Percentage |
2.46%
|
|
| Debt instrument, maturity date |
Sep. 24, 2031
|
|
| Uncollateralized Senior Note Due January Two Thousand Thirty Seven |
|
|
| Debt Instrument [Line Items] |
|
|
| Total long-term debt |
$ (50,000)
|
(50,000)
|
| Debt Instrument, Interest Rate, Stated Percentage |
2.49%
|
|
| Debt instrument, maturity date |
Jan. 25, 2037
|
|
| Uncollateralized Senior Note Due March 15, 2042 |
|
|
| Debt Instrument [Line Items] |
|
|
| Total long-term debt |
$ (50,000)
|
(50,000)
|
| Debt Instrument, Interest Rate, Stated Percentage |
2.95%
|
|
| Debt instrument, maturity date |
Mar. 15, 2042
|
|
| Uncollateralized Senior Note Due March 14, 2038 |
|
|
| Debt Instrument [Line Items] |
|
|
| Total long-term debt |
$ (80,000)
|
|
| Debt Instrument, Interest Rate, Stated Percentage |
5.43%
|
|
| Debt instrument, maturity date |
Mar. 14, 2038
|
|
| Uncollateralized Senior Note Due March 14, 2038 [Abstract] |
|
|
| Debt Instrument [Line Items] |
|
|
| Total long-term debt |
|
(80,000)
|
| Uncollateralized Senior Note Due December 2026 |
|
|
| Debt Instrument [Line Items] |
|
|
| Total long-term debt |
$ (100,000)
|
(100,000)
|
| Debt Instrument, Interest Rate, Stated Percentage |
6.39%
|
|
| Debt instrument, maturity date |
Dec. 31, 2026
|
|
| Uncollateralized Senior Note Due December 2027 |
|
|
| Debt Instrument [Line Items] |
|
|
| Total long-term debt |
$ (100,000)
|
(100,000)
|
| Debt Instrument, Interest Rate, Stated Percentage |
6.44%
|
|
| Debt instrument, maturity date |
Dec. 31, 2027
|
|
| Uncollateralized Senior Note Due December 2028 |
|
|
| Debt Instrument [Line Items] |
|
|
| Total long-term debt |
$ (100,000)
|
(100,000)
|
| Debt Instrument, Interest Rate, Stated Percentage |
6.45%
|
|
| Debt instrument, maturity date |
Dec. 31, 2028
|
|
| Uncollateralized Senior Note Due December 2030 |
|
|
| Debt Instrument [Line Items] |
|
|
| Total long-term debt |
$ (100,000)
|
(100,000)
|
| Debt Instrument, Interest Rate, Stated Percentage |
6.62%
|
|
| Debt instrument, maturity date |
Dec. 31, 2030
|
|
| Uncollateralized Senior Note Due December 2033 |
|
|
| Debt Instrument [Line Items] |
|
|
| Total long-term debt |
$ (100,000)
|
(100,000)
|
| Debt Instrument, Interest Rate, Stated Percentage |
6.71%
|
|
| Debt instrument, maturity date |
Dec. 31, 2033
|
|
| Uncollateralized Senior Note Due December 2038 |
|
|
| Debt Instrument [Line Items] |
|
|
| Total long-term debt |
$ (50,000)
|
(50,000)
|
| Debt Instrument, Interest Rate, Stated Percentage |
6.73%
|
|
| Debt instrument, maturity date |
Dec. 31, 2038
|
|
| Term Note Due January Two Thousand Twenty [Member] |
|
|
| Debt Instrument [Line Items] |
|
|
| Total long-term debt |
$ (63,000)
|
(63,000)
|
| Uncollateralized Senior Notes Due On October 2029 |
|
|
| Debt Instrument [Line Items] |
|
|
| Total long-term debt |
$ (100,000)
|
(100,000)
|
| Debt Instrument, Interest Rate, Stated Percentage |
5.20%
|
|
| Debt instrument, maturity date |
Oct. 31, 2029
|
|
| Uncollateralized Senior Note Due MM YYYY |
|
|
| Debt Instrument [Line Items] |
|
|
| Debt Instrument, Interest Rate, Stated Percentage |
5.04%
|
|
| Uncollateralized Senior Note Due August 2028 |
|
|
| Debt Instrument [Line Items] |
|
|
| Total long-term debt |
$ (60,000)
|
(60,000)
|
| Debt Instrument, Interest Rate, Stated Percentage |
4.88%
|
|
| Debt instrument, maturity date |
Aug. 01, 2028
|
|
| Uncollateralized Senior Note Due September 2030 |
|
|
| Debt Instrument [Line Items] |
|
|
| Total long-term debt |
$ (50,000)
|
(50,000)
|
| Debt Instrument, Interest Rate, Stated Percentage |
5.02%
|
|
| Debt instrument, maturity date |
Sep. 01, 2030
|
|
| Uncollateralized Senior Note Due August 2031 |
|
|
| Debt Instrument [Line Items] |
|
|
| Total long-term debt |
$ (90,000)
|
$ (90,000)
|
| Debt Instrument, Interest Rate, Stated Percentage |
5.16%
|
|
| Debt instrument, maturity date |
Aug. 01, 2031
|
|
| Prudential [Member] | Uncollateralized Senior Note Due MM YYYY |
|
|
| Debt Instrument [Line Items] |
|
|
| Total long-term debt |
$ (200,000)
|
|
| Prudential [Member] | Uncollateralized Senior Note Due August 2028 |
|
|
| Debt Instrument [Line Items] |
|
|
| Total long-term debt |
(60,000)
|
|
| Prudential [Member] | Uncollateralized Senior Note Due September 2030 |
|
|
| Debt Instrument [Line Items] |
|
|
| Total long-term debt |
(50,000)
|
|
| Prudential [Member] | Uncollateralized Senior Note Due August 2031 |
|
|
| Debt Instrument [Line Items] |
|
|
| Total long-term debt |
$ (90,000)
|
|