Goodwill and Other Intangible Assets - Additional Information (Detail) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Mar. 31, 2021	Dec. 31, 2020
Acquired Finite-Lived Intangible Assets [Line Items]
Impairment of goodwill			$ 0	$ 0
Other intangible assets, net	$ 224,685,000		224,685,000			$ 219,909,000
Amortization expense for intangible assets	14,300,000	$ 13,500,000	28,500,000	$ 27,100,000
Customer relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Other intangible assets, net	$ 99,199,000		99,199,000			97,893,000
Customer relationships | Puerto Rico
Acquired Finite-Lived Intangible Assets [Line Items]
Other intangible assets, net					$ 14,800,000
Useful life (years)	10 years
Software packages
Acquired Finite-Lived Intangible Assets [Line Items]
Other intangible assets, net	$ 103,556,000		103,556,000			$ 97,543,000
Impairment charge			$ 600,000