Loans Receivable, Net ALLL and Loans Receivable Summary (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Loans Receivable and Allowance for Loan and Lease Losses
Individually evaluated for impairment	$ 108,788	$ 119,994
Collectively evaluated for impairment	8,178,761	6,457,830
Total loans receivable	8,287,549	6,577,824
Individually evaluated for impairment	3,223	5,223
Collectively evaluated for impairment	128,016	124,345
Total ALLL	131,239	129,568
Residential Real Estate \| Residential Real Estate
Loans Receivable and Allowance for Loan and Lease Losses
Individually evaluated for impairment	12,685	12,399
Collectively evaluated for impairment	875,057	708,329
Total loans receivable	887,742	720,728
Individually evaluated for impairment	83	246
Collectively evaluated for impairment	10,548	10,552
Total ALLL	10,631	10,798
Commercial
Loans Receivable and Allowance for Loan and Lease Losses
Total loans receivable	6,568,732	5,156,492
Commercial \| Commercial Real Estate
Loans Receivable and Allowance for Loan and Lease Losses
Individually evaluated for impairment	68,837	77,536
Collectively evaluated for impairment	4,588,724	3,499,603
Total loans receivable	4,657,561	3,577,139
Individually evaluated for impairment	568	500
Collectively evaluated for impairment	71,880	68,015
Total ALLL	72,448	68,515
Commercial \| Other Commercial
Loans Receivable and Allowance for Loan and Lease Losses
Individually evaluated for impairment	20,975	23,032
Collectively evaluated for impairment	1,890,196	1,556,321
Total loans receivable	1,911,171	1,579,353
Individually evaluated for impairment	2,313	3,851
Collectively evaluated for impairment	35,847	35,452
Total ALLL	38,160	39,303
Consumer and Other
Loans Receivable and Allowance for Loan and Lease Losses
Total loans receivable	831,075	700,604
Consumer and Other \| Home Equity
Loans Receivable and Allowance for Loan and Lease Losses
Individually evaluated for impairment	3,497	3,755
Collectively evaluated for impairment	541,191	454,163
Total loans receivable	544,688	457,918
Individually evaluated for impairment	39	56
Collectively evaluated for impairment	5,772	6,148
Total ALLL	5,811	6,204
Consumer and Other \| Other Consumer
Loans Receivable and Allowance for Loan and Lease Losses
Individually evaluated for impairment	2,794	3,272
Collectively evaluated for impairment	283,593	239,414
Total loans receivable	286,387	242,686
Individually evaluated for impairment	220	570
Collectively evaluated for impairment	3,969	4,178
Total ALLL	$ 4,189	$ 4,748

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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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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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