Lease Accounting - Additional Information (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2019 USD ($)
Lessee, Lease, Description [Line Items]
Receivable deemed uncollectable	$ 307
Lease execution costs	$ 161
Remaining lease term	44 years
Renewal term	54 years
Sublease income	$ 1,882
Minimum
Lessee, Lease, Description [Line Items]
Renewal term	5 years
Maximum
Lessee, Lease, Description [Line Items]
Renewal term	10 years