Acquired Loans - Additional Information (Details)	3 Months Ended
	Mar. 31, 2017 USD ($) CreditRiskGrade	Dec. 31, 2016 USD ($)
Certain Loans Acquired In Transfer Not Accounted For As Debt Securities [Abstract]
Number of individual credit risk grades | CreditRiskGrade	10
Nonaccrual loans not accounted for under FASB ASC Topic 310 30 | $	$ 0	$ 631,000