Contractual Obligations and Off-Balance Sheet Items - Additional Information (Details) $ in Thousands |
3 Months Ended |
---|---|
Mar. 31, 2019
USD ($)
| |
Contractual Obligations And Off Balance Sheet Items [Line Items] | |
Operating lease, right-of-use asset | $ 16,000 |
Operating lease, liability | $ 16,000 |
Operating lease, weighted average remaining lease term | 5 years 4 months 24 days |
Operating lease weighted average discount rate, percent | 3.40% |
Operating lease, payments | $ 1,400 |
Minimum [Member] | |
Contractual Obligations And Off Balance Sheet Items [Line Items] | |
Lessee operating lease remaining lease term | 1 year |
Maximum [Member] | |
Contractual Obligations And Off Balance Sheet Items [Line Items] | |
Lessee operating lease remaining lease term | 13 years |
Federal Home Loan Bank Advance And Notes Payable [Member] | |
Contractual Obligations And Off Balance Sheet Items [Line Items] | |
Interest payable | $ 85 |