Leases (Lessee) - Summary of Lease Expense (Parenthetical) (Detail) - USD ($) $ in Thousands		3 Months Ended	9 Months Ended
		Sep. 30, 2019	Sep. 30, 2019
Lessee Lease Description [Line Items]
Operating lease cost	[1],[2]	$ 2,163	$ 6,725
Property-related [Member]
Lessee Lease Description [Line Items]
Operating lease cost		$ 1,400	$ 4,500

[1] $1.4 million and $4.5 million for the three and nine months ended September 30, 2019, respectively, included in Property-related, with the remainder reflected in General and administrative expenses.

[2] Includes short-term leases.