No definition available.

Name:	us-gaap_FinancingReceivableAllowanceForCreditLossAdditionalInformationAbstract
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- Definition

A valuation allowance for financing receivables that are expected to be uncollectible.

+ References

+ Details

Name:	us-gaap_FinancingReceivableAllowanceForCreditLosses
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

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

+ References

+ Details

Name:	us-gaap_FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment
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Period Type:	instant

- Definition

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

+ References

+ Details

Name:	us-gaap_FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1
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Balance Type:	credit
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- Definition

Amount of recovery of financing receivables doubtful of collection that were previously charged off.

+ References

+ Details

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Balance Type:	credit
Period Type:	duration

- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

+ Details

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- Definition

Amount of direct write-downs of financing receivables charged against the allowance.

+ References

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Name:	us-gaap_FinancingReceivableAllowanceForCreditLossesWriteOffs
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Data Type:	xbrli:monetaryItemType
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- Definition

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

+ References

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- Definition

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

+ References

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Name:	us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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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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- Definition

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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Period Type:	instant

- Definition

Net amount of the investment in a contractual right to receive money on demand or on fixed or determinable dates that is recognized as an asset in the creditor's statement of financial position. Examples include, but are not limited to, credit card receivables, notes receivable and receivables relating to lessor's rights to payments from leases other than operating leases that have been recorded as assets. Excludes trade accounts receivable with contractual maturity of one year or less and arose from the sale of goods or services.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
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-Section S99
-Paragraph 1
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Balance Type:	debit
Period Type:	instant

- Definition

Amount of expense related loan transactions, lease transactions, credit loss from transactions other than loan and lease transactions, and other loss based on assessment of uncollectability from the counterparty to reduce the account to their net realizable value.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
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Loans (Schedule of the Allowance for Loan Losses) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2018	Dec. 31, 2017
Schedule of allowance and recorded investment related to financing receivables segregated by portfolio segment
Beginning balance	$ 91,887
Ending balance	109,984	$ 91,887
Allowance for loan losses
Loans individually evaluated for impairment related to allowance for loan losses				$ 6,804	$ 8,002
Loans collectively evaluated for impairment related to allowance for loan losses				102,760	83,885
Total	91,887	91,887		109,984	91,887
Loans individually evaluated for impairment related to recorded investment (loan balance)				130,873	111,877
Loans collectively evaluated for impairment related to recorded investment (loan balance)				11,713,883	9,635,552
Total loans				15,269,779	14,155,267
Commercial Loan Portfolio
Schedule of allowance and recorded investment related to financing receivables segregated by portfolio segment
Beginning balance	66,133
Ending balance	83,179	66,133
Allowance for loan losses
Loans individually evaluated for impairment related to allowance for loan losses				5,474	5,537
Loans collectively evaluated for impairment related to allowance for loan losses				77,285	60,596
Total	66,133	66,133		83,179	66,133
Loans individually evaluated for impairment related to recorded investment (loan balance)				105,038	83,797
Loans collectively evaluated for impairment related to recorded investment (loan balance)				7,268,932	5,573,389
Total loans				9,511,867	8,460,527
Consumer Loan Portfolio
Schedule of allowance and recorded investment related to financing receivables segregated by portfolio segment
Beginning balance	25,754
Ending balance	26,805	25,754
Allowance for loan losses
Loans individually evaluated for impairment related to allowance for loan losses				1,330	2,465
Loans collectively evaluated for impairment related to allowance for loan losses				25,475	23,289
Total	25,754	25,754		26,805	25,754
Loans individually evaluated for impairment related to recorded investment (loan balance)				25,835	28,080
Loans collectively evaluated for impairment related to recorded investment (loan balance)				4,444,951	4,062,163
Total loans				5,757,912	5,694,740
Receivables Acquired with Deteriorated Credit Quality
Allowance for loan losses
Allowance for loan losses related to loans acquired with deteriorated credit quality				420	0
Loans acquired with deteriorated credit quality related to recorded investment (loan balance)				3,425,023	4,407,838
Receivables Acquired with Deteriorated Credit Quality \| Commercial Loan Portfolio
Allowance for loan losses
Allowance for loan losses related to loans acquired with deteriorated credit quality				420	0
Loans acquired with deteriorated credit quality related to recorded investment (loan balance)				2,137,897	2,803,341
Receivables Acquired with Deteriorated Credit Quality \| Consumer Loan Portfolio
Allowance for loan losses
Allowance for loan losses related to loans acquired with deteriorated credit quality				0	0
Loans acquired with deteriorated credit quality related to recorded investment (loan balance)				1,287,126	1,604,497
Originated Loan Portfolio [Member]
Schedule of allowance and recorded investment related to financing receivables segregated by portfolio segment
Beginning balance	91,887	78,268	$ 73,328
Provision for loan losses	30,330	23,300	14,875
Charge-offs	(18,464)	(16,867)	(15,302)
Recoveries	5,811	7,186	5,367
Ending balance	109,564	91,887	78,268
Allowance for loan losses
Total	91,887	78,268	73,328	109,564	91,887
Originated Loan Portfolio [Member] \| Commercial Loan Portfolio
Schedule of allowance and recorded investment related to financing receivables segregated by portfolio segment
Beginning balance	66,133	51,201	47,234
Provision for loan losses	22,656	19,007	9,788
Charge-offs	(9,563)	(8,570)	(8,906)
Recoveries	3,533	4,495	3,085
Ending balance	82,759	66,133	51,201
Allowance for loan losses
Total	66,133	51,201	47,234	82,759	66,133
Originated Loan Portfolio [Member] \| Consumer Loan Portfolio
Schedule of allowance and recorded investment related to financing receivables segregated by portfolio segment
Beginning balance	25,754	27,067	26,094
Provision for loan losses	7,674	4,293	5,087
Charge-offs	(8,901)	(8,297)	(6,396)
Recoveries	2,278	2,691	2,282
Ending balance	26,805	25,754	27,067
Allowance for loan losses
Total	25,754	27,067	$ 26,094	26,805	25,754
Acquired Loan Portfolio
Schedule of allowance and recorded investment related to financing receivables segregated by portfolio segment
Beginning balance	0
Provision for loan losses	420
Charge-offs	0
Recoveries	0
Ending balance	420	0
Allowance for loan losses
Total	0	0		420	0
Acquired Loan Portfolio \| Commercial Loan Portfolio
Schedule of allowance and recorded investment related to financing receivables segregated by portfolio segment
Beginning balance	0
Provision for loan losses	420
Charge-offs	0
Recoveries	0
Ending balance	420	0
Allowance for loan losses
Total	0	0		420	0
Acquired Loan Portfolio \| Consumer Loan Portfolio
Schedule of allowance and recorded investment related to financing receivables segregated by portfolio segment
Beginning balance	0
Provision for loan losses	0
Charge-offs	0
Recoveries	0
Ending balance	0	0
Allowance for loan losses
Total	$ 0	$ 0		$ 0	$ 0