Commitments and Contingencies (Changes in Repurchase Reserve) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Balance at beginning of period	$ 8,374	$ 9,851
Net realized gains/(losses)	(4,768)	(4,554)
Net increase/(decrease) to reserve	(881)	3,077
Balance at end of period	2,725	8,374
Reserve on residential mortgage loans
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Balance at beginning of period	7,250	8,737
Net realized gains/(losses)	(3,638)	(4,564)
Net increase/(decrease) to reserve	(887)	3,077
Balance at end of period	2,725	7,250
Reserve on manufactured housing loans
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Balance at beginning of period	1,124	1,114
Net realized gains/(losses)	(1,130)	10
Net increase/(decrease) to reserve	6	0
Balance at end of period	$ 0	$ 1,124