Restricted Cash - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash	$ 35,176	$ 59,219	$ 54,408	$ 64,765
Net cash outflow	(14,741)	(16,666)	9,117
Cash and cash equivalents	34,917	58,909
Accounting Standards Update 2016-18 [Member]
Restricted Cash and Cash Equivalents Items [Line Items]
Net cash outflow			9,079
Previously Reported [Member] | Accounting Standards Update 2016-18 [Member]
Restricted Cash and Cash Equivalents Items [Line Items]
Net cash outflow			9,117
Prepaid Expenses and Other Current Assets [Member]
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash	$ 259	$ 310
Cash [Member] | Accounting Standards Update 2016-18 [Member]
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash			$ 117	$ 155