Allowance Balances [Abstract]

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- Definition

Loan Balance [Abstract]

+ References

No definition available.

+ Details

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- Definition

Loans and Leases Receivable

+ References

No definition available.

+ Details

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- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
-Subparagraph (g)
-URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524

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- Definition

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

+ References

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- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
-Subparagraph (h)
-URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524

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- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
-Subparagraph (h)
-URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524

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- Definition

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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
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Loans and Allowance - Allowance for Credit Losses and Loan Portfolio by Loan Segment (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Jun. 30, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Dec. 31, 2016
Allowance Balances:
Individually evaluated for impairment	$ 433		$ 1,637
Collectively evaluated for impairment	77,973		73,395
Total Allowance for Loan Losses	78,406	$ 77,543	75,032	$ 73,354	$ 70,471	$ 66,037
Loan Balance [Abstract]
Individually evaluated for impairment	15,999		23,211
Collectively evaluated for impairment	7,052,993		6,703,034
Loans	7,088,071		6,751,199
Loans acquired with deteriorated credit quality
Loan Balance [Abstract]
Loans	19,079		24,954
Commercial
Allowance Balances:
Individually evaluated for impairment			666
Collectively evaluated for impairment	32,066		29,752
Total Allowance for Loan Losses	32,066	31,465	30,418	29,683	28,906	27,696
Loan Balance [Abstract]
Individually evaluated for impairment	1,614		3,345
Collectively evaluated for impairment	2,132,193		2,005,275
Loans	2,136,099		2,010,041
Commercial \| Loans acquired with deteriorated credit quality
Loan Balance [Abstract]
Loans	2,292		1,421
Commercial Real Estate
Allowance Balances:
Individually evaluated for impairment			567
Collectively evaluated for impairment	27,946		26,776
Total Allowance for Loan Losses	27,946	27,731	27,343	26,747	25,236	23,661
Loan Balance [Abstract]
Individually evaluated for impairment	12,158		17,432
Collectively evaluated for impairment	3,340,898		3,135,481
Loans	3,368,237		3,174,910
Commercial Real Estate \| Loans acquired with deteriorated credit quality
Loan Balance [Abstract]
Loans	15,181		21,997
Consumer
Allowance Balances:
Individually evaluated for impairment
Collectively evaluated for impairment	3,932		3,732
Total Allowance for Loan Losses	3,932	3,921	3,732	3,591	3,372	2,923
Loan Balance [Abstract]
Individually evaluated for impairment	8		5
Collectively evaluated for impairment	98,701		86,930
Loans	98,709		86,935
Consumer \| Loans acquired with deteriorated credit quality
Loan Balance [Abstract]
Loans
Residential
Allowance Balances:
Individually evaluated for impairment	433		404
Collectively evaluated for impairment	14,027		13,133
Total Allowance for Loan Losses	14,460	14,424	13,537	13,331	12,955	11,755
Loan Balance [Abstract]
Individually evaluated for impairment	2,219		2,429
Collectively evaluated for impairment	1,479,371		1,472,821
Loans	1,483,196		1,476,786
Residential \| Loans acquired with deteriorated credit quality
Loan Balance [Abstract]
Loans	1,606		1,536
Lease financing receivables, net of unearned income
Allowance Balances:
Individually evaluated for impairment
Collectively evaluated for impairment	2		2
Total Allowance for Loan Losses	2	$ 2	2	$ 2	$ 2	$ 2
Loan Balance [Abstract]
Individually evaluated for impairment
Collectively evaluated for impairment	1,830		2,527
Loans	1,830		2,527
Lease financing receivables, net of unearned income \| Loans acquired with deteriorated credit quality
Loan Balance [Abstract]
Loans