Consolidated Statements of Financial Condition (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Securities held-to-maturity	$ 879,898	$ 899,743
Loans and leases receivable, allowance	42,736	40,444
Fair value of retained MSRs	$ 42,833	$ 38,440
Common Stock:
Treasury stock (in shares)	4,099,023	4,099,023
Class A Common Stock
Common Stock:
Common stock, shares authorized (in shares)	446,863,844	446,863,844
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares issued (in shares)	53,700,386	53,794,322
Common stock, shares outstanding (in shares)	49,601,363	49,695,299
Class B Common Stock
Common Stock:
Common stock, shares authorized (in shares)	3,136,156	3,136,156
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares issued (in shares)	277,797	201,922
Common stock, shares outstanding (in shares)	277,797	201,922