Finance Receivables, net (Schedule of Changes In Finance Receivables) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Carrying Amount [Roll Forward]
Balance at beginning of period		$ 3,230,949	$ 3,514,165	$ 3,084,777
Acquisitions of finance receivables		276,918		874,812
Foreign currency translation adjustment		(59,172)		(60,213)
Cash collections		(453,217)		(1,384,662)
Income recognized on finance receivables	$ 0	247,471	0	735,526
Net allowance charges	0	(4,136)	0	(11,427)
Balance at end of period	$ 3,332,748	$ 3,238,813	$ 3,332,748	$ 3,238,813