Fair Value Measurement Fair Value Measurement (FV changes of Level 3 - recurring)(Details) - Fair Value Hierarchy [Domain] - USD ($) $ in Thousands		3 Months Ended		6 Months Ended		12 Months Ended
		Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans Receivable, Fair Value Disclosure		$ 38,224		$ 38,224		$ 0
Fair Value, Measurements, Recurring [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans Receivable, Fair Value Disclosure		38,224		38,224
Interest Rate Lock Commitments [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total realized/unrealized gains, interest rate lock commitments	[1]	32,160	$ 34,495	88,146	$ 54,662
Settlements, interest rate lock commitments		(34,692)	(27,183)	(76,592)	(43,228)
Net unrealized gains recognized on outstanding nterest rate lock commitments		$ 399	$ 17,100	$ 508	$ 26,900
Minimum [Member] | Interest Rate Lock Commitments [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Interest rate lock commitments, net - Fall out factor				1.10%		0.60%
Interest rate lock commitments, net - Initial value of servicing				0.62%		0.56%
Minimum [Member] | Loans Receivable [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value Inputs, Discount for Lack of Marketability		42.40%	6.30%	25.00%	6.30%
Minimum [Member] | Real Estate [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value Inputs, Discount for Lack of Marketability					0.00%
Maximum [Member] | Interest Rate Lock Commitments [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Interest rate lock commitments, net - Fall out factor				57.41%		77.90%
Interest rate lock commitments, net - Initial value of servicing				2.51%		1.94%
Maximum [Member] | Loans Receivable [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value Inputs, Discount for Lack of Marketability		51.40%	68.10%	51.40%	68.10%
Maximum [Member] | Real Estate [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value Inputs, Discount for Lack of Marketability					0.00%
Weighted Average [Member] | Interest Rate Lock Commitments [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Interest rate lock commitments, net - Fall out factor				17.04%		21.40%
Interest rate lock commitments, net - Initial value of servicing				0.99%		0.93%
Weighted Average [Member] | Loans Receivable [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value Inputs, Discount for Lack of Marketability		48.20%	35.20%	36.80%	24.40%

[1] All realized and unrealized gains and losses are recognized in earnings as net gain from mortgage loan origination and sale activities on the consolidated statements of operations. There were net unrealized gains of $399 thousand and $17.1 million for the three months ended June 30, 2015 and 2014, respectively, and $508 thousand and $26.9 million for the six months ended June 30, 2015 and 2014, respectively, recognized on interest rate lock commitments outstanding at the beginning of the period and still outstanding at June 30, 2015 and 2014, respectively