Operating Leases - Summary of Supplemental Balance Sheet Information Pertaining To Operating Leases (Details) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2019 USD ($)	Sep. 30, 2019 USD ($)
Leases [Abstract]
Cash paid for amounts included in the measurement of lease liabilities for operating leases	$ 3,922	$ 11,802
Right of use assets obtained in exchange for lease liabilities	$ 3,343	$ 121,066
Weighted average remaining lease term (in years)	13 years 1 month 2 days	13 years 1 month 2 days
Weighted average discount rate	3.53%	3.53%