Leases - Operating Leases (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Leases [Abstract]
Right-of-use assets	$ 31,628	$ 32,539
Lease liabilities	$ 34,572	$ 35,525
Weighted average remaining lease term (in years)	13 years 360 days	14 years 26 days
Weighted average discount rate	3.45%	3.44%