Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2021

Goodwill And Intangible Assets Disclosure [Abstract]

Schedule of Gross Amount and Accumulated Amortization of Intangible Assets

The gross amount and accumulated amortization of intangible assets with finite useful lives included in “Intangible assets, net” on the consolidated balance sheets are as follows (in thousands except for years):

	June 30, 2021							December 31, 2020							Weighted Average
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Amortization Period (in years)
Backlog	$	147,455	$	(112,066	)	$	35,389	$	145,855	$	(101,038	)	$	44,817		3
Customer relationships		262,830		(133,908	)		128,922		264,129		(110,450	)		153,679		8
Leases		670		(609	)		61		670		(599	)		71		5
Developed technology		112,939		(82,793	)		30,146		112,039		(68,968	)		43,071		4
Trade name		8,200		(8,167	)		33		8,200		(7,967	)		233		1
Non-compete agreements		4,250		(2,688	)		1,562		4,250		(2,043	)		2,207		3
In process research and development		1,800		-			1,800		1,800		-			1,800	n/a
Other intangibles		275		(203	)		72		275		(195	)		80		10
Total intangible assets	$	538,419	$	(340,434	)	$	197,985	$	537,218	$	(291,260	)	$	245,958

Schedule of Estimated Amortization Expense

Estimated amortization expense for the remainder of the current fiscal year and in each of the next four years and beyond is as follows (in thousands):

	June 30, 2021
2021	$	48,806
2022		52,230
2023		38,595
2024		12,273
2025		9,713
Thereafter		34,568
Total	$	196,185