Intangibles (Tables)

3 Months Ended

Mar. 30, 2019

Intangible Assets, Net (Excluding Goodwill) [Abstract]

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]

The estimated future amortization expense of intangible assets is as follows (in thousands):

Twelve Month Period Ending in	Amortization Expense
2020	$	60,398
2021	58,675
2022	54,934
2023	50,227
2024	43,895
Thereafter	165,800
	$	433,929

Schedule of Acquired Finite-Lived Intangible Assets by Major Class [Table Text Block]

Intangible assets consist of the following (in thousands):

	March 30, 2019						December 29, 2018
	Estimated Weighted Avg Remaining Life	Gross Carrying Amount		Accumulated Amortization			Estimated Weighted Avg Remaining Life	Gross Carrying Amount		Accumulated Amortization
Amortized intangible assets:
Customer lists	9.3	$	651,587	$	(237,090	)	9.5	$	644,145	$	(222,661	)
Backlog	2.3	28,096		(26,019		)	2.8	27,065		(24,755		)
Developed technology	5.8	39,115		(21,760		)	5.9	39,624		(20,998		)
		$	718,798	$	(284,869	)		$	710,834	$	(268,414	)
Indefinite-lived assets:
Trademarks and tradenames		$	937,456					$	918,604