Earnings (Loss) Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands		3 Months Ended
		Mar. 31, 2022	Mar. 31, 2021
Earnings Per Share [Abstract]
Net earnings from continuing operations		$ 120,128	$ 150,406
Less: Earnings allocated to unvested restricted stock	[1]	(2,037)	(2,355)
Net earnings allocated to common shares		$ 118,091	$ 148,051
Weighted-average basic shares and unvested restricted stock outstanding (shares)		119,595	118,852
Weighted-average unvested restricted stock outstanding (shares)		(2,246)	(2,003)
Weighted-average basic shares outstanding (shares)		117,349	116,849
Basic net income per share (usd per share)		$ 1.01	$ 1.27
Net earnings from continuing operations allocated to common shares		$ 118,091	$ 148,051
Diluted net income per share (usd per share)		$ 1.01	$ 1.27

[1] Represents cash dividends paid to holders of unvested restricted stock, net of forfeitures, plus undistributed earnings amounts available to holders of unvested restricted stock, if any.