Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Earnings Per Share [Abstract]
Net income attributable to common shareholders	$ 398,214	$ 326,326	$ 501,580	$ 507,594
Weighted average common shares outstanding - basic (in shares)	113,464	113,211	113,411	113,162
Net effect of dilutive securities:
Contingently issuable performance shares and restricted stock units (in shares)	374	252	307	214
Weighted average common shares outstanding — diluted (in shares)	113,838	113,463	113,718	113,376
Earnings per weighted-average common share outstanding
Net income attributable to common shareholders - basic (in dollars per share)	$ 3.51	$ 2.88	$ 4.42	$ 4.49
Net income attributable to common shareholders - diluted (in dollars per share)	$ 3.50	$ 2.88	$ 4.41	$ 4.48