Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 14,253	$ 11,549
Adjustments to reconcile net income to net cash (used in) provided by operating activities:
Gain on sales of mortgage loans	(370)	(798)
Net gains on sales of securities		(45)
Provision for loan losses	890	800
Deferred income taxes	(1,579)	(1,792)
Net depreciation and amortization	1,660	1,575
Decrease in accrued interest receivable	(664)	(712)
Increase in other assets	(2,593)	(3,428)
Increase in other liabilities	2,426	1,069
Net cash provided by operating activities	14,023	8,218
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchase of short-term investments		(8)
Maturities of short-term investments	3,183
Proceeds from redemptions of Federal Home Loan Bank of Boston stock	714	4,898
Purchase of Federal Home Loan Bank of Boston stock	(5,260)	(2,177)
Proceeds from calls/maturities of securities available-for-sale	166,976	130,513
Proceeds from sales of securities available-for-sale	0	1,946
Purchase of securities available-for-sale	(71,793)	(287,834)
Proceeds from calls/maturities of securities held-to-maturity	153,405	213,337
Proceeds from sales of securities held-to-maturity	0	192
Purchase of securities held-to-maturity	(220,832)	(345,692)
Net increase in loans	(136,181)	(132,182)
Proceeds from sales of portfolio loans	26,701	50,220
Capital expenditures	(1,365)	(835)
Net cash used in investing activities	(84,452)	(367,622)
CASH FLOWS FROM FINANCING ACTIVITIES:
Net increase (decrease) in time deposits	97,051	(12,899)
Net (decrease) increase in demand, savings, money market and NOW deposits	(181,072)	156,771
Cash dividends	(1,100)	(1,101)
Net (decrease) increase in securities sold under agreements to repurchase	(14,940)	19,915
Net increase in other borrowed funds	162,500	63,000
Net cash provided by financing activities	62,439	225,686
Net decrease in cash and cash equivalents	(7,990)	(133,718)
Cash and cash equivalents at beginning of period	236,151	220,724
Cash and cash equivalents at end of period	228,161	87,006
Cash paid during the period for:
Interest	12,997	10,893
Income taxes	2,980	2,110
Change in unrealized gains (losses) on securities available-for-sale, net of taxes	333	(38)
Change in unrealized losses on securities transferred to held-to-maturity, net of taxes	633	1,747
Pension liability adjustment, net of taxes	465	485
Change in due to (from) to broker	$ 6,854	3,180
Transfer of loans to loans held-for-sale		$ 12,403