Finance Receivables, net (Schedule of Changes In Finance Receivables) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Carrying Amount [Roll Forward]
Balance at beginning of period		$ 3,177,229	$ 3,514,165	$ 3,084,777
Acquisitions of finance receivables		284,448		597,894
Foreign currency translation adjustment		(8,477)		(1,041)
Cash collections		(470,274)		(931,445)
Income recognized on finance receivables	$ 0	249,219	0	488,055
Net allowance charges	0	(1,196)	0	(7,291)
Balance at end of period	$ 3,351,532	$ 3,230,949	$ 3,351,532	$ 3,230,949