Consolidated Statements of Financial Condition (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended	12 Months Ended
Mar. 31, 2015	Dec. 31, 2014
Loans and leases receivable, allowance	$ 29,345	$ 29,480
Preferred Stock:
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	50,000,000us-gaap_PreferredStockSharesAuthorized	50,000,000us-gaap_PreferredStockSharesAuthorized
Fair value of retained MSRs	$ 21,165	$ 13,135
Common Stock:
Treasury stock, shares	1,639,023us-gaap_TreasuryStockShares	1,639,023us-gaap_TreasuryStockShares
Series A Preferred Stock
Preferred Stock:
Preferred stock, liquidation preference per share	$ 1,000	$ 1,000
Preferred stock, shares authorized	32,000	32,000
Preferred stock, shares issued	32,000	32,000
Preferred stock, shares outstanding	32,000	32,000
Series B Preferred Stock
Preferred Stock:
Preferred stock, liquidation preference per share	$ 1,000	$ 1,000
Preferred stock, shares authorized	10,000	10,000
Preferred stock, shares issued	10,000	10,000
Preferred stock, shares outstanding	10,000	10,000
Series C Preferred Stock
Preferred Stock:
Preferred stock, liquidation preference per share	$ 1,000	$ 1,000
Non cumulative preferred stock, dividend rate	8.00%	8.00%
Preferred stock, shares authorized	40,250	40,250
Preferred stock, shares issued	40,250	40,250
Preferred stock, shares outstanding	40,250	40,250
Class A Common Stock
Common Stock:
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	446,863,844	446,863,844
Common stock, shares issued	36,702,222	35,829,763
Common stock, shares outstanding	35,063,199	34,190,740
Class B Common Stock
Common Stock:
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	3,136,156	3,136,156
Common stock, shares issued	11	609,195
Common stock, shares outstanding	11	609,195

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