Loans and leases receivable maximum percentage consumer loans.

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Loans and leases receivable, maturity term.

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Maximum loans and leases receivable percent of appraised value or underlying collateral mortgage residential loans.

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Number of loan segments.

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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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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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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.

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Amount after allowance and 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 and loans held for sale.

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Amount of deferred fees paid by borrowers and unamortized costs incurred to originate loans and leases, unamortized loan commitments and loan syndication fees, and premiums over or discounts from face amounts of loans that are being amortized into income as an adjustment to yield. Excludes amounts for loans and leases covered under loss sharing agreements.

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Loans Receivable - Loan Origination/Risk Management (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2017 USD ($) segment	Mar. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Jun. 30, 2016 USD ($)	Mar. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of loan segments \| segment	4
Maximum percentage consumer loans (percent)	80.00%
Gross loans receivable	$ 2,746,646		$ 2,638,397
Net deferred loan costs	2,861		2,352
Loans receivable, net	2,749,507		2,640,749
Allowance for loan losses	(32,751)	$ (31,594)	(31,083)	$ (28,426)	$ (29,667)	$ (29,746)
Total loans receivable, net	2,716,756		2,609,666
Commercial Business
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans receivable	2,150,052		2,076,688
Allowance for loan losses	(22,514)	(21,908)	(22,382)	(20,472)	(21,479)	(22,064)
Commercial Business \| Commercial and Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans receivable	659,621		637,773
Allowance for loan losses	(10,651)	(10,091)	(10,968)	(9,970)	(9,830)	(9,972)
Commercial Business \| Owner-occupied Commercial Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans receivable	586,236		558,035
Allowance for loan losses	(4,154)	(4,216)	(3,661)	(3,578)	(4,092)	(4,370)
Commercial Business \| Non-owner Occupied Commercial Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans receivable	904,195		880,880
Allowance for loan losses	$ (7,709)	(7,601)	(7,753)	(6,924)	(7,557)	(7,722)
One-to-four Family Residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Maximum percent of appraised value or underlying collateral mortgage (not to exceed 80%) residential loans (percent)	80.00%
Gross loans receivable	$ 80,941		77,391
Allowance for loan losses	(1,073)	(1,052)	(1,015)	(950)	(1,087)	(1,157)
Real Estate Construction and Land Development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans receivable	185,438		159,178
Allowance for loan losses	(2,487)	(2,337)	(2,156)	(2,031)	(1,871)	(1,871)
Real Estate Construction and Land Development \| One-to-four Family Real Estate Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans receivable	49,479		50,414
Allowance for loan losses	(821)	(791)	(797)	(754)	(804)	(1,058)
Real Estate Construction and Land Development \| Five or More Family Residential and Commercial Properties
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans receivable	135,959		108,764
Allowance for loan losses	(1,666)	(1,546)	(1,359)	(1,277)	(1,067)	(813)
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans receivable	330,215		325,140
Allowance for loan losses	$ (5,710)	$ (5,195)	$ (5,024)	$ (4,816)	$ (4,756)	$ (4,309)
Minimum \| One-to-four Family Residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan term	15 years
Maximum \| One-to-four Family Residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan term	30 years