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Loans Receivable and Allowance for Loan Losses - Schedule of Changes in Allowance for Loan Losses (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	$ 39,883	$ 37,605	$ 37,315	$ 35,647
Provision for loan losses	535	1,552	3,585	3,055
Charge-offs	(1,946)	(1,000)	(2,769)	(1,042)
Charge-offs for BankMobile loans	(202)	(140)	(222)	(140)
Recoveries	134	80	453	577
Recoveries for BankMobile loans	54	0	96	0
Ending balance	$ 38,458	$ 38,097	$ 38,458	$ 38,097

X

- Definition

Financing Receivable, Allowance for Credit Losses, Recovery, Assets Held for Sale

+ References

No definition available.

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- Definition

Financing Receivable, Allowance for Credit Losses, Write-downs, Assets Held for Sale

+ References

No definition available.

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X

- 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.

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
-Subparagraph (c)(4)
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- Definition

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

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
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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

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- 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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