Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Cash flows from operating activities:
Net income	$ 50,738	$ 53,849
Adjustments to reconcile net income to net cash provided by operating activities:
Net amortization on loans	6,219	5,678
Net amortization on securities and borrowings	4,855	4,701
Net provision for loan and real estate losses credited to operations	(2,774)	(3,287)
Depreciation and amortization	6,134	5,804
Net gain on sales of loans and securities	(1,081)	(816)
Mortgage servicing rights amortization and valuation allowance adjustments, net	611	1,437
Stock-based compensation	3,916	4,253
Originations of loans held-for-sale	(61,079)	(40,957)
Proceeds from sales and principal repayments of loans held-for-sale	60,759	41,650
Increase in accrued interest receivable	(124)	(154)
Bank owned life insurance income and insurance proceeds received, net	(4,376)	(3,045)
Increase in other assets	(11,436)	(54)
(Decrease) increase in accrued expenses and other liabilities	(3,882)	5,461
Net cash provided by operating activities	48,480	74,520
Cash flows from investing activities:
Originations of loans receivable	(767,399)	(726,125)
Loan purchases through third parties	(117,596)	(72,375)
Principal payments on loans receivable	1,311,864	937,327
Proceeds from sales of delinquent and non-performing loans	6,183	1,310
Purchases of securities held-to-maturity	(272,524)	(276,388)
Purchases of securities available-for-sale	(88,156)
Principal payments on securities held-to-maturity	245,317	161,171
Principal payments on securities available-for-sale	22,977	20,194
Proceeds from sale of available-for-sale securities	19,026
Net redemptions of Federal Home Loan Bank of New York stock	2,370	1,919
Proceeds from sales of real estate owned, net	15,524	29,314
Purchases of premises and equipment, net of proceeds from sales	(5,478)	(4,400)
Net cash provided by investing activities	372,108	71,947
Cash flows from financing activities:
Net decrease in deposits	(277,139)	(195,939)
Net (decrease) increase in borrowings with original terms of three months or less	(129,000)	163,000
Repayments of borrowings with original terms greater than three months		(100,000)
Net increase in mortgage escrow funds	17,502	18,228
Proceeds from sales of treasury stock	6,055	4,064
Cash dividends paid to stockholders	(12,412)	(12,335)
Net tax benefit excess from stock-based compensation	11
Net cash used in financing activities	(394,983)	(122,982)
Net increase in cash and cash equivalents	25,605	23,485
Cash and cash equivalents at beginning of period	143,185	121,950
Cash and cash equivalents at end of period	168,790	145,435
Supplemental disclosures:
Interest paid	68,450	75,519
Income taxes paid	17,732	6,741
Additions to real estate owned	3,736	31,646
Loans transferred to held-for-sale	$ 6,205	$ 187,769