Reconciliation of Basic and Diluted Shares - Antidilutive Securities Excluded from Computation of Earnings per Share (Details) - shares shares in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Restricted stock units
Antidilutive securities
Number of securities not included in computation of diluted earnings per share (in shares)	1,023	797	1,012	811
Stock appreciation rights
Antidilutive securities
Number of securities not included in computation of diluted earnings per share (in shares)	2,429	2,193	2,451	2,422
Performance share units
Antidilutive securities
Number of securities not included in computation of diluted earnings per share (in shares)	1,411	1,128	1,402	1,177