Loans, Allowance for Loan Losses and Loans Held for Sale (Allowance Roll Forward) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Balance - beginning of period	$ 56,795	$ 27,723	$ 49,804	$ 19,443
Provision for loan losses	15,526	13,073	38,626	29,652
Loans charged off	(21,155)	(9,382)	(39,014)	(18,059)
Recoveries of loans previously charged off	1,886	486	3,636	864
Allowance for loan losses - end of period	$ 53,052	$ 31,900	$ 53,052	$ 31,900