Components of Other Intangible Assets (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Other Intangible Assets [Line Items]
Finite-lived intangible assets, Gross Amount	$ 280,923	$ 253,623
Finite-lived intangible assets, Accumulated Amortization	(83,537)	(56,951)
Finite-lived intangible assets, Net Carrying Value	197,386	196,672
Customer Relationships [Member]
Other Intangible Assets [Line Items]
Finite-lived intangible assets, Gross Amount	249,223	226,623
Finite-lived intangible assets, Accumulated Amortization	(72,157)	(53,156)
Finite-lived intangible assets, Net Carrying Value	$ 177,066	$ 173,467
Customer Relationships [Member] | Minimum [Member]
Other Intangible Assets [Line Items]
Intangible assets estimated useful life	5 years	5 years
Customer Relationships [Member] | Maximum [Member]
Other Intangible Assets [Line Items]
Intangible assets estimated useful life	15 years	15 years
Carrier Network and Agent Relationships [Member]
Other Intangible Assets [Line Items]
Finite-lived intangible assets, Gross Amount	$ 15,000	$ 15,000
Finite-lived intangible assets, Accumulated Amortization	(4,813)	(1,063)
Finite-lived intangible assets, Net Carrying Value	$ 10,187	$ 13,937
Intangible assets estimated useful life	4 years	4 years
Developed Technology [Member]
Other Intangible Assets [Line Items]
Finite-lived intangible assets, Gross Amount	$ 10,500	$ 6,500
Finite-lived intangible assets, Accumulated Amortization	(1,449)	(232)
Finite-lived intangible assets, Net Carrying Value	$ 9,051	$ 6,268
Intangible assets estimated useful life		7 years
Developed Technology [Member] | Minimum [Member]
Other Intangible Assets [Line Items]
Intangible assets estimated useful life	5 years
Developed Technology [Member] | Maximum [Member]
Other Intangible Assets [Line Items]
Intangible assets estimated useful life	7 years
Trade Name [Member]
Other Intangible Assets [Line Items]
Finite-lived intangible assets, Gross Amount	$ 6,200	$ 5,500
Finite-lived intangible assets, Accumulated Amortization	(5,118)	(2,500)
Finite-lived intangible assets, Net Carrying Value	$ 1,082	$ 3,000
Intangible assets estimated useful life	18 months	18 months