Intangible Assets, Net (Tables)

3 Months Ended

Mar. 31, 2022

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Intangible Assets, Net

Intangible assets, net consisted of the following:

	March 31, 2022						December 31, 2021
	Gross				Net		Gross				Net
	Carrying		Accumulated		Carrying		Carrying		Accumulated		Carrying
	Amount		Amortization		Amount		Amount		Amortization		Amount
	(in thousands)
Customer lists	$	590,080	$	(252,313)	$	337,767	$	590,080	$	(241,189)	$	348,891
Proprietary technologies	103,324		(48,168)		55,156		85,324		(43,004)		42,320
Trade names	33,700		(25,747)		7,953		33,700		(24,515)		9,185
Total intangible assets	$	727,104	$	(326,228)	$	400,876	$	709,104	$	(308,708)	$	400,396

Schedule of Amortization Expense

Amortization expense was as follows:

		Three Months Ended
		March 31,
		2022		2021
	(in thousands)
Amortization expense		$	17,520	$	16,478