Allowance for Loan and Lease Losses, Adjustments, Net [Abstract] [Roll Forward]

No definition available.

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- 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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- References

No definition available.

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- Definition

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

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- Definition

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

+ References

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- Definition

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

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- Definition

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

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- Definition

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

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- Definition

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

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

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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
-Paragraph 1
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- Definition

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

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- 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
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-SubTopic 10
-Section S99
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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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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
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Loans Receivable and Allowance for Loan Losses - Schedule of Allowance for Loan Losses (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Dec. 31, 2017
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	$ 39,499	$ 39,883	$ 38,015	$ 37,315
Charge-offs	(1,161)	(2,148)	(1,850)	(2,991)
Recoveries	734	188	790	549
Provision for loan losses	(784)	535	1,333	3,585
Ending balance	38,288	38,458	38,288	38,458
Loans:
Individually evaluated for impairment					$ 37,629	$ 38,435
Collectively evaluated for impairment					7,118,881	6,702,825
Loans receivable, gross					7,181,084	6,768,175
Allowance for loan losses:
Individually evaluated for impairment					1,381	1,451
Collectively evaluated for impairment					33,472	32,537
Total Allowance for loan losses	39,499	39,883	38,015	37,315	38,288	38,015
Purchased Credit Impaired Loans
Loans:
Loans acquired with credit deterioration					24,574	26,915
Loans receivable, gross					24,574	26,915
Allowance for loan losses:
Loans acquired with credit deterioration					3,435	4,027
Multi-family
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	12,545	12,283	12,168	11,602
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provision for loan losses	(476)	(255)	(99)	426
Ending balance	12,069	12,028	12,069	12,028
Loans:
Individually evaluated for impairment					1,343	0
Collectively evaluated for impairment					3,539,640	3,500,500
Loans receivable, gross					3,542,770	3,502,381
Allowance for loan losses:
Individually evaluated for impairment					0	0
Collectively evaluated for impairment					12,069	12,168
Total Allowance for loan losses	12,545	12,283	12,168	11,602	12,069	12,168
Multi-family \| Purchased Credit Impaired Loans
Loans:
Loans acquired with credit deterioration					1,787	1,881
Loans receivable, gross					1,787	1,881
Allowance for loan losses:
Loans acquired with credit deterioration					0	0
Commercial and industrial
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	11,737	13,009	10,918	11,050
Charge-offs	(174)	(1,849)	(224)	(2,047)
Recoveries	140	68	175	283
Provision for loan losses	555	357	1,389	2,299
Ending balance	12,258	11,585	12,258	11,585
Loans:
Individually evaluated for impairment					13,750	17,461
Collectively evaluated for impairment					1,252,168	1,130,865
Loans receivable, gross					1,266,520	1,149,090
Allowance for loan losses:
Individually evaluated for impairment					1,062	650
Collectively evaluated for impairment					10,749	9,804
Total Allowance for loan losses	11,737	13,009	10,918	11,050	12,258	10,918
Commercial and industrial \| Purchased Credit Impaired Loans
Loans:
Loans acquired with credit deterioration					602	764
Loans receivable, gross					602	764
Allowance for loan losses:
Loans acquired with credit deterioration					447	464
Commercial real estate - owner occupied
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	3,525	2,394	3,232	2,183
Charge-offs	(483)	0	(501)	0
Recoveries	326	9	326	9
Provision for loan losses	(380)	573	(69)	784
Ending balance	2,988	2,976	2,988	2,976
Loans:
Individually evaluated for impairment					759	1,448
Collectively evaluated for impairment					534,882	472,708
Loans receivable, gross					545,231	484,728
Allowance for loan losses:
Individually evaluated for impairment					1	642
Collectively evaluated for impairment					2,987	2,580
Total Allowance for loan losses	3,525	2,394	3,232	2,183	2,988	3,232
Commercial real estate - owner occupied \| Purchased Credit Impaired Loans
Loans:
Loans acquired with credit deterioration					9,590	10,572
Loans receivable, gross					9,590	10,572
Allowance for loan losses:
Loans acquired with credit deterioration					0	10
Commercial real estate - non-owner occupied
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	7,233	7,847	7,437	7,894
Charge-offs	0	(4)	0	(408)
Recoveries	0	0	0	0
Provision for loan losses	(535)	(57)	(739)	300
Ending balance	6,698	7,786	6,698	7,786
Loans:
Individually evaluated for impairment					2,536	160
Collectively evaluated for impairment					1,148,581	1,213,309
Loans receivable, gross					1,155,998	1,218,719
Allowance for loan losses:
Individually evaluated for impairment					0	0
Collectively evaluated for impairment					4,334	4,630
Total Allowance for loan losses	7,233	7,847	7,437	7,894	6,698	7,437
Commercial real estate - non-owner occupied \| Purchased Credit Impaired Loans
Loans:
Loans acquired with credit deterioration					4,881	5,250
Loans receivable, gross					4,881	5,250
Allowance for loan losses:
Loans acquired with credit deterioration					2,364	2,807
Construction
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	921	885	979	840
Charge-offs	0	0	0	0
Recoveries	209	49	220	130
Provision for loan losses	(138)	(218)	(207)	(254)
Ending balance	992	716	992	716
Loans:
Individually evaluated for impairment					0	0
Collectively evaluated for impairment					88,141	85,393
Loans receivable, gross					88,141	85,393
Allowance for loan losses:
Individually evaluated for impairment					0	0
Collectively evaluated for impairment					992	979
Total Allowance for loan losses	921	885	979	840	992	979
Construction \| Purchased Credit Impaired Loans
Loans:
Loans acquired with credit deterioration					0	0
Loans receivable, gross					0	0
Allowance for loan losses:
Loans acquired with credit deterioration					0	0
Residential real estate
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	3,179	3,080	2,929	3,342
Charge-offs	(42)	(69)	(407)	(290)
Recoveries	56	6	63	27
Provision for loan losses	(285)	(22)	323	(84)
Ending balance	2,908	2,995	2,908	2,995
Loans:
Individually evaluated for impairment					8,775	9,247
Collectively evaluated for impairment					479,386	219,162
Loans receivable, gross					493,222	234,090
Allowance for loan losses:
Individually evaluated for impairment					313	155
Collectively evaluated for impairment					2,106	2,177
Total Allowance for loan losses	3,179	3,080	2,929	3,342	2,908	2,929
Residential real estate \| Purchased Credit Impaired Loans
Loans:
Loans acquired with credit deterioration					5,061	5,681
Loans receivable, gross					5,061	5,681
Allowance for loan losses:
Loans acquired with credit deterioration					489	597
Manufactured housing
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	176	284	180	286
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provision for loan losses	(27)	(16)	(31)	(18)
Ending balance	149	268	149	268
Loans:
Individually evaluated for impairment					10,372	10,089
Collectively evaluated for impairment					72,531	77,587
Loans receivable, gross					85,328	90,227
Allowance for loan losses:
Individually evaluated for impairment					5	4
Collectively evaluated for impairment					81	82
Total Allowance for loan losses	176	284	180	286	149	180
Manufactured housing \| Purchased Credit Impaired Loans
Loans:
Loans acquired with credit deterioration					2,425	2,551
Loans receivable, gross					2,425	2,551
Allowance for loan losses:
Loans acquired with credit deterioration					63	94
Other
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	183	101	172	118
Charge-offs	(462)	(226)	(718)	(246)
Recoveries	3	56	6	100
Provision for loan losses	502	173	766	132
Ending balance	226	104	226	104
Loans:
Individually evaluated for impairment					94	30
Collectively evaluated for impairment					3,552	3,301
Loans receivable, gross					3,874	3,547
Allowance for loan losses:
Individually evaluated for impairment					0	0
Collectively evaluated for impairment					154	117
Total Allowance for loan losses	$ 183	$ 101	$ 172	$ 118	226	172
Other \| Purchased Credit Impaired Loans
Loans:
Loans acquired with credit deterioration					228	216
Loans receivable, gross					228	216
Allowance for loan losses:
Loans acquired with credit deterioration					$ 72	$ 55