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Equity Incentive Plans - Additional Information (Details) - USD ($)	6 Months Ended
	Jun. 30, 2025	Apr. 24, 2025	Dec. 31, 2024	Jun. 30, 2024	Dec. 31, 2023	Apr. 30, 2019	Apr. 13, 2019	Jun. 30, 2016
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of option outstanding	185,928
Options outstanding, weighted average exercise price	$ 58.58
Stock Appreciation Rights (SARs)
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of option outstanding	138,627		142,785	151,502	157,020
Options outstanding, weighted average exercise price	$ 56.49		$ 55.03	$ 54.9	$ 54.88
Employee Stock Option
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of option outstanding	185,928		193,395	210,134	214,974
Options outstanding, weighted average exercise price	$ 58.58		$ 57.66	$ 57.3	$ 57.08
Total unrecognized compensation cost	$ 1,011,000
weighted-average period of recognized	2 years 1 month 13 days
Cash Settled SARS Activity
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Total unrecognized compensation cost	$ 780,000
weighted-average period of recognized	2 years 2 months 4 days
Restricted Share Awards
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of non-option outstanding	153		153	301	301
Non-options outstanding, weighted average exercise price	$ 66.7		$ 66.7	$ 66.7	$ 66.7
Total unrecognized compensation cost	$ 5,000
weighted-average period of recognized	4 months 20 days
Restricted Share Units
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of non-option outstanding	20,639		24,482	24,857	14,458
Non-options outstanding, weighted average exercise price	$ 70.98		$ 70.44	$ 70.46	$ 69
Total unrecognized compensation cost	$ 1,204,000
weighted-average period of recognized	3 years 3 months 18 days
Performance-Based Vesting Restricted Stock Units
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of non-option outstanding	369		738	738	1,107
Non-options outstanding, weighted average exercise price	$ 67.85		$ 67.85	$ 67.85	$ 67.85
Total unrecognized compensation cost	$ 15,000
weighted-average period of recognized	7 months 2 days
The 2009 Stock Option Plan [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of Shares Authorized						100,000
Number of shares available for grant							0
Number of option outstanding	300
Options outstanding, weighted average exercise price	$ 37.31
The 2016 Equity Incentive Plan [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of Shares Authorized								750,000
Number of shares available for grant		0
Number of option outstanding	178,962
Options outstanding, weighted average exercise price	$ 57.95
The 2016 Equity Incentive Plan [Member] \| Stock Appreciation Rights (SARs)
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of non-option outstanding	131,627
Non-options outstanding, weighted average exercise price	$ 55.43
The 2016 Equity Incentive Plan [Member] \| Restricted Share Awards
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of non-option outstanding	153
The 2016 Equity Incentive Plan [Member] \| Restricted Share Units
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of non-option outstanding	19,181
The 2016 Equity Incentive Plan [Member] \| Performance Share Unit Awards
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of non-option outstanding	369
The 2025 Equity Incentive Plan [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of Shares Authorized		675,000
Shares reserved for issuance		675,000
Number of shares available for grant	659,501
Number of option outstanding	6,666
Options outstanding, weighted average exercise price	$ 76.3
The 2025 Equity Incentive Plan [Member] \| Stock Appreciation Rights (SARs)
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of non-option outstanding	7,000
Non-options outstanding, weighted average exercise price	$ 76.3
The 2025 Equity Incentive Plan [Member] \| Restricted Share Units
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of non-option outstanding	1,458
The 2025 Equity Incentive Plan [Member] \| Newly Reserved Shares
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Shares reserved for issuance		508,388
The 2025 Equity Incentive Plan [Member] \| Initially Reserved for Issuance \| Common Stock
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of shares available for grant		166,612