Reconciliation of Basic and Diluted Shares - Antidilutive Securities Excluded from Computation of Earnings per Share (Details) - shares shares in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Restricted stock units
Antidilutive securities
Number of securities not included in computation of diluted earnings per share (in shares)	969	0	997	763
Stock appreciation rights
Antidilutive securities
Number of securities not included in computation of diluted earnings per share (in shares)	2,380	2,062	2,427	2,304
Performance share units
Antidilutive securities
Number of securities not included in computation of diluted earnings per share (in shares)	1,341	1,052	1,382	1,135