Leases - Additional information (Details)	3 Months Ended
	Mar. 31, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Finance lease, renewal term	10 years
Operating lease, renewal term	10 years
Minimum
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Finance lease, remaining term of contract	1 year
Operating lease, remaining term of contract	1 year
Maximum
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Finance lease, remaining term of contract	77 years
Operating lease, remaining term of contract	77 years