Segment Information - Income from Segments to Consolidated Net Income (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Segment Reporting [Abstract]
Total EBITDA	$ 51,004	$ 54,108
Less:
Income tax expense	4,518	3,809
Interest expense, net	6,416	7,292
Depreciation and amortization	17,795	16,273
Net income	$ 22,275	$ 26,734