Loans Held for Sale (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Dec. 01, 2014	Nov. 30, 2014
Business Acquisition [Line Items]
Payments for Origination of Mortgage Loans Held-for-sale	$ 594,225	$ 0
Proceeds from the sale of loans held for sale	571,494	118,201
Purchases of loans held for sale	0	$ 117,225
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	594,200
Proceeds from the sale of loans held for sale	$ 571,500