Condensed Consolidating Statements of Income (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Revenues:
Revenues	$ 149,040	$ 149,661
Costs and expenses:
Depreciation and amortization	17,492	17,335
Total costs and expenses	124,852	114,171
Income from operations	24,188	35,490
Other income (expense):
Interest income	12
Interest expense	(9,257)	(10,760)
Deferred financing costs write-off		(123)
Foreign currency exchange	(3)	1
Income before income tax provision	14,940	24,608
Income tax provision	6,639	6,523
Net income	8,301	18,085
Guarantors
Revenues:
Revenues	127,997	127,992
Costs and expenses:
Depreciation and amortization	15,650	15,518
Total costs and expenses	108,484	96,668
Income from operations	19,513	31,324
Other income (expense):
Interest income	6
Interest expense	(9,143)	(10,626)
Deferred financing costs write-off		(123)
Foreign currency exchange	2
Income before income tax provision	10,378	20,575
Income tax provision	5,895	5,751
Net income	4,483	14,824
Non-Guarantors
Revenues:
Revenues	21,043	21,669
Costs and expenses:
Depreciation and amortization	1,842	1,817
Total costs and expenses	16,368	17,503
Income from operations	4,675	4,166
Other income (expense):
Interest income	6
Interest expense	(114)	(134)
Foreign currency exchange	(5)	1
Income before income tax provision	4,562	4,033
Income tax provision	744	772
Net income	3,818	3,261
Rental
Revenues:
Revenues	140,656	142,172
Rental | Guarantors
Revenues:
Revenues	121,576	122,269
Rental | Non-Guarantors
Revenues:
Revenues	19,080	19,903
Sales
Revenues:
Revenues	8,316	7,223
Costs and expenses:
Cost of sales	5,102	4,602
Sales | Guarantors
Revenues:
Revenues	6,353	5,457
Costs and expenses:
Cost of sales	3,600	3,188
Sales | Non-Guarantors
Revenues:
Revenues	1,963	1,766
Costs and expenses:
Cost of sales	1,502	1,414
Other
Revenues:
Revenues	68	266
Other | Guarantors
Revenues:
Revenues	68	266
Rental Selling and General Expenses
Costs and expenses:
Cost of sales	102,258	92,234
Rental Selling and General Expenses | Guarantors
Costs and expenses:
Cost of sales	89,234	77,962
Rental Selling and General Expenses | Non-Guarantors
Costs and expenses:
Cost of sales	$ 13,024	$ 14,272