Equity Incentive Program - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period		3 years
Total stock based compensation expense, before tax	$ 0	$ 469
Stock Appreciation Rights (SARs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity awards issued during period (in shares)	282,917	348,324
Fair value per share at date of grant (in dollars per share)	$ 66.39	$ 51.17
Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity awards issued during period (in shares)	34,458	42,536
Fair value per share at date of grant (in dollars per share)	$ 318.38	$ 287.62
Award vesting period	3 years
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity awards issued during period (in shares)	57,614	79,821
Fair value per share at date of grant (in dollars per share)	$ 202.33	$ 160.11
Performance Condition
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value per share at date of grant (in dollars per share)	$ 202.33