Goodwill and Other Intangible Assets Schedule of Intangible Assets, Net (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 26, 2015	Dec. 27, 2014
Finite-lived intangible assets
Gross	$ 137,124	$ 33,974
Accumulated Amortization	(69,694)	(19,938)
Net	67,430	14,036
Indefinite-lived intangibles	0	3,438
Total other intangible assets, net	67,430	17,474
Total intangible assets, net	280,804	178,875
Intangible assets previously assigned indefinite lives	$ 3,400
Useful life	20 years
Backlog
Finite-lived intangible assets
Gross	$ 50,568	8,728
Accumulated Amortization	(50,554)	(6,636)
Net	14	2,092
Technology
Finite-lived intangible assets
Gross	60,350	13,474
Accumulated Amortization	(5,911)	(4,166)
Net	54,439	9,308
Trademarks and trade names
Finite-lived intangible assets
Gross	11,495	6,603
Accumulated Amortization	(5,944)	(5,314)
Net	5,551	1,289
Other identifiable intangible assets
Finite-lived intangible assets
Gross	14,711	5,169
Accumulated Amortization	(7,285)	(3,822)
Net	7,426	1,347
Client relationships
Finite-lived intangible assets
Gross	396,537	379,339
Accumulated Amortization	(183,163)	(217,938)
Net	213,374	161,401
Total intangible assets, net	$ 213,374	$ 161,401

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Finite-Lived Intangible Assets transfer from Indefinite-Lived Intangible Assets, gross

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Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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-Publisher FASB
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