Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Earnings Per Share [Abstract]
Net income attributable to common shareholders	$ 164,312	$ 215,697	$ 181,268	$ 251,338
Weighted average common shares outstanding - basic (in shares)	113,172	112,882	113,137	112,855
Net effect of dilutive securities:
Contingently issuable performance shares and restricted stock units (in shares)	197	341	195	303
Weighted average common shares outstanding — diluted (in shares)	113,369	113,223	113,332	113,158
Earnings per weighted-average common share outstanding
Net income attributable to common shareholders - basic (in dollars per share)	$ 1.45	$ 1.91	$ 1.60	$ 2.23
Net income attributable to common shareholders - diluted (in dollars per share)	$ 1.45	$ 1.91	$ 1.60	$ 2.22