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Goodwill and Other Intangible Assets - Schedule of Other Intangible Assets (Details) - USD ($) $ in Thousands | Sep. 26, 2015 | Dec. 27, 2014
--- | --- | ---
Other intangible assets |  |
Gross | $ 458,477 | $ 413,313
Accumulated Amortization | (184,229) | (237,876)
Net | 274,248 | 175,437
Indefinite-lived intangibles assets | 3,438 | 3,438
Total other intangibles assets, net | 277,686 | 178,875
Backlog |  |
Other intangible assets |  |
Gross | 0 | 8,728
Accumulated Amortization | 0 | (6,636)
Net | 0 | 2,092
Client relationships |  |
Other intangible assets |  |
Gross | 390,585 | 379,339
Accumulated Amortization | (176,099) | (217,938)
Net | 214,486 | 161,401
Developed technology |  |
Other intangible assets |  |
Gross | 49,204 | 13,474
Accumulated Amortization | (2,931) | (4,166)
Net | 46,273 | 9,308
Trademarks and trade names |  |
Other intangible assets |  |
Gross | 6,631 | 6,603
Accumulated Amortization | (844) | (5,314)
Net | 5,787 | 1,289
Standard operating procedures |  |
Other intangible assets |  |
Gross | 2,100 | 2,309
Accumulated Amortization | (1,745) | (1,642)
Net | 355 | 667
Other identifiable intangible assets |  |
Other intangible assets |  |
Gross | 9,957 | 2,860
Accumulated Amortization | (2,610) | (2,180)
Net | $ 7,347 | $ 680

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