Premises and Equipment (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2019	Dec. 31, 2018
Lessee Disclosure [Abstract]
Lease liabilities	$ 17,800	$ 17,800
Right-of-use assets	$ 16,397	$ 16,397
Lease term for operating leases	7 years 4 months 24 days	7 years 4 months 24 days
Weighted average discount rate	3.00%	3.00%
Lease costs	$ 800	$ 1,600
Rent expense	$ 500	$ 1,000