Leases (Lessee) - Summary of Lease Expense (Parenthetical) (Detail) $ in Thousands	3 Months Ended
	Mar. 31, 2019 USD ($)
Lessee Lease Description [Line Items]
Operating lease cost	$ 2,096	[1],[2]
Property-related [Member]
Lessee Lease Description [Line Items]
Operating lease cost	$ 1,600

[1] $1.6 million included in Property-related, with the remainder reflected in General and administrative expenses.

[2] Includes short-term leases.