Loans Held for Sale (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Dec. 02, 2014	Nov. 30, 2014
Business Acquisition [Line Items]
Payments for Origination of Mortgage Loans Held-for-sale	$ 392,823	$ 0
Purchases of loans held for sale	0	75,877
Proceeds from the sale of loans held for sale	363,096	$ 72,989
Residential Mortgage Holding Company
Business Acquisition [Line Items]
Voting interests acquired			76.50%
Ownership Percentage			100.00%	23.50%
Subsidiaries
Business Acquisition [Line Items]
Payments for Origination of Mortgage Loans Held-for-sale	392,800
Proceeds from the sale of loans held for sale	$ 363,100