Leases - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018
Leases [Abstract]
Operating lease term of contract	29 years
Right of use assets	$ 71,480	$ 0	$ 0
Operating lease liabilities, current	14,300
Long term lease liabilities	60,237	$ 0	$ 0
Lease expense	$ 4,300
Weighted-average remaining lease term	6 years 7 months 6 days
Weighted-average discount rate	4.13%