Subsequent Event - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Subsequent Event [Line Items]
Net revenues	$ 54,446	$ 51,941	$ 60,969	$ 57,420	$ 60,590	$ 60,938	$ 63,904	$ 56,675	$ 224,776	$ 242,107	$ 213,112
Total assets	195,402				$ 217,249				195,402	$ 217,249
Sabre [Member]
Subsequent Event [Line Items]
Net revenues									9,300
Total assets	$ 1,900								$ 1,900