GOODWILL AND INTANGIBLE ASSETS (Tables)

6 Months Ended

Jun. 30, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Rollforward of Goodwill

The following table provides a rollforward of the Company’s goodwill:

			Adjustments to Goodwill
	December 30, 2017		Acquisitions		Foreign Exchange			June 30, 2018
	(in thousands)
RMS	$	58,122	$	—	$	(446	)	$	57,676
DSA	605,176		458,903		(6,565		)	1,057,514
Manufacturing	141,608		—		(2,354		)	139,254
Total	$	804,906	$	458,903	$	(9,365	)	$	1,254,444

Schedule of Intangible Assets

The following table displays intangible assets, net by major class:

	June 30, 2018							December 30, 2017
	Gross		Accumulated Amortization			Net		Gross		Accumulated Amortization			Net
	(in thousands)
Backlog	$	20,900	$	(6,092	)	$	14,808	$	8,111	$	(8,111	)	$	—
Technology	103,361		(34,686		)	68,675		81,309		(27,157		)	54,152
Trademarks and trade names	8,541		(4,579		)	3,962		8,661		(4,562		)	4,099
Other	17,319		(8,905		)	8,414		17,465		(7,845		)	9,620
Other intangible assets	150,121		(54,262		)	95,859		115,546		(47,675		)	67,871
Client relationships	799,352		(246,075		)	553,277		540,425		(238,534		)	301,891
Intangible assets	$	949,473	$	(300,337	)	$	649,136	$	655,971	$	(286,209	)	$	369,762