Income Taxes (Schedule of Reconciliation of Income Tax Provision (Benefit)) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
U.S. federal statutory income tax	$ 106,893	$ 40,730	$ 11,901
REIT income not subject to federal income tax	(34,332)	(16,949)	(11,285)
Change in valuation allowance		(395)	(395)
State income taxes, net of federal tax benefit	13,314	3,099	334
Other items, net	(719)	638	455
Income taxes	$ 85,156	$ 27,123	$ 1,010
Effective tax rate	16.70%	14.00%	1.80%