Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 39,996	$ 23,567
Purchases of bank premises and equipment	(1,460)	(7,841)
Net purchases of Federal Home Loan Bank of New York shares	(11,129)	(3,002)
Purchases of securities held-to-maturity	(27,705)	(3,100)
Proceeds from maturities of securities held-to-maturity	5,475	390
Purchases of securities available for sale	(61,615)	(138,095)
Proceeds from sales and calls of securities	66,996	25,039
Proceeds from maturities and prepayments of securities	53,856	61,868
Proceeds from bank owned life insurance	2,236
Proceeds from sale of buildings	34,332	20,209
Net originations of loans	(160,139)	(82,544)
Purchases of loans	(137,994)	(126,070)
Proceeds from sale of real estate owned	853	2,070
Proceeds from sale of loans	8,360	5,028
Net cash used in investing activities	(227,934)	(246,048)
Adjustments to reconcile net income to net cash provided by operating activities:
Benefit for loan losses		(1,250)
Depreciation and amortization of bank premises and equipment	2,094	1,535
Amortization of premium, net of accretion of discount	4,099	4,447
Net (gain) loss from fair value adjustments	2,102	(173)
Net gain from sale of loans	(344)	(49)
Net gain from sale of securities	(2,363)	(64)
Net gain from sale of buildings	(33,814)	(6,537)
Income from bank owned life insurance	(1,389)	(1,432)
Gain from life insurance proceeds	(411)
Stock-based compensation expense	3,564	3,643
Deferred compensation	(2,629)	(2,004)
Excess tax benefit from stock-based payment arrangements	(421)	(380)
Deferred income tax (benefit) provision	83	(3,855)
Increase in other liabilities	16,211	706
Decrease in other assets	4,754	5,374
Net cash provided by operating activities	31,532	23,528
CASH FLOWS FROM FINANCING ACTIVITIES
Net increase in non-interest bearing deposits	47,643	1,741
Net increase (decrease) in interest-bearing deposits	(8,448)	179,213
Net increase in mortgagors' escrow deposits	9,061	8,251
Net proceeds from short-term borrowed funds	215,000	35,000
Proceeds from long-term borrowings	150,000	72,996
Repayment of long-term borrowings	(190,637)	(50,000)
Purchases of treasury stock	(9,085)	(13,490)
Excess tax benefit from stock-based payment arrangements	421	380
Proceeds from issuance of common stock upon exercise of stock options	127	142
Cash dividends paid	(9,878)	(9,379)
Net cash provided by financing activities	204,204	224,854
Net increase in cash and cash equivalents	7,802	2,334
Cash and cash equivalents, beginning of period	42,363	34,265
Cash and cash equivalents, end of period	50,165	36,599
SUPPLEMENTAL CASHFLOW DISCLOSURE
Interest paid	28,250	23,585
Income taxes paid	9,270	16,221
Taxes paid if excess tax benefits were not tax deductible	9,691	16,601
Non-cash activities:
Securities purchased not yet settled		22,037
Securities transferred from available for sale to held-to-maturity		4,510
Loans transferred to Other Real Estate Owned	486	772
Loans provided for the sale of Other Real Estate Owned		175
Loans held for investment transferred to loans held for sale		$ 300