ALLL and Loans Receivable Summary (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Allowance for Loan and Lease Losses and Loans Receivable
Individually evaluated for impairment	$ 4,077	$ 6,881
Collectively evaluated for impairment	125,499	122,691
Total allowance for loan and lease losses	129,576	129,572
Individually evaluated for impairment	122,893	130,263
Collectively evaluated for impairment	6,386,540	5,554,200
Total loans receivable	6,509,433	5,684,463
Residential Real Estate \| Residential Real Estate
Allowance for Loan and Lease Losses and Loans Receivable
Individually evaluated for impairment	320	856
Collectively evaluated for impairment	11,160	11,580
Total allowance for loan and lease losses	11,480	12,436
Individually evaluated for impairment	13,410	11,612
Collectively evaluated for impairment	720,832	662,735
Total loans receivable	734,242	674,347
Commercial
Allowance for Loan and Lease Losses and Loans Receivable
Total loans receivable	5,079,490	4,332,391
Commercial \| Commercial Real Estate
Allowance for Loan and Lease Losses and Loans Receivable
Individually evaluated for impairment	666	922
Collectively evaluated for impairment	67,559	64,851
Total allowance for loan and lease losses	68,225	65,773
Individually evaluated for impairment	79,070	85,634
Collectively evaluated for impairment	3,424,906	2,904,507
Total loans receivable	3,503,976	2,990,141
Commercial \| Other Commercial
Allowance for Loan and Lease Losses and Loans Receivable
Individually evaluated for impairment	2,407	4,419
Collectively evaluated for impairment	35,413	33,404
Total allowance for loan and lease losses	37,820	37,823
Individually evaluated for impairment	22,456	23,950
Collectively evaluated for impairment	1,553,058	1,318,300
Total loans receivable	1,575,514	1,342,250
Consumer and Other
Allowance for Loan and Lease Losses and Loans Receivable
Total loans receivable	695,701	677,725
Consumer and Other \| Home Equity
Allowance for Loan and Lease Losses and Loans Receivable
Individually evaluated for impairment	94	296
Collectively evaluated for impairment	6,887	7,276
Total allowance for loan and lease losses	6,981	7,572
Individually evaluated for impairment	4,600	5,934
Collectively evaluated for impairment	447,691	428,840
Total loans receivable	452,291	434,774
Consumer and Other \| Other Consumer
Allowance for Loan and Lease Losses and Loans Receivable
Individually evaluated for impairment	590	388
Collectively evaluated for impairment	4,480	5,580
Total allowance for loan and lease losses	5,070	5,968
Individually evaluated for impairment	3,357	3,133
Collectively evaluated for impairment	240,053	239,818
Total loans receivable	$ 243,410	$ 242,951

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The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment.

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Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment.

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The balance of financing receivables that were collectively evaluated for impairment.

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Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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Amount before allowance and after deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements.

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