Loans, Allowance for Loan Losses and Impaired Loans - Schedule of Purchased Loans, Impaired and Non-Impaired (Details) - Acquired Loans $ in Thousands	May 16, 2016 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Contractually required cash flows at acquisition	$ 189,077
Non-accretable difference (expected losses and foregone interest)	(936)
Cash flows expected to be collected at acquisition	188,141
Accretable yield	(2,802)
Fair value of acquired loans at acquisition	185,339
Performing loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Contractually required cash flows at acquisition	179,895
Non-accretable difference (expected losses and foregone interest)	0
Cash flows expected to be collected at acquisition	179,895
Accretable yield	(2,802)
Fair value of acquired loans at acquisition	177,093
Receivables Acquired with Deteriorated Credit Quality
Accounts, Notes, Loans and Financing Receivable [Line Items]
Contractually required cash flows at acquisition	9,182
Non-accretable difference (expected losses and foregone interest)	(936)
Cash flows expected to be collected at acquisition	8,246
Accretable yield	0
Fair value of acquired loans at acquisition	$ 8,246