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Goodwill and Other Intangible Assets - Gross Carrying Amount and Accumulated Amortization of Goodwill (Details) $ in Thousands | 9 Months Ended
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Sep. 26, 2015 USD ($)
Changes in gross carrying amount and accumulated amortization of goodwill |
Gross carrying amount, balance at the beginning of the period | $ 321,077
Adjustments to Goodwill, Acquisitions | 104,224
Adjustments to Goodwill, Foreign Exchange | (7,056)
Gross carrying amount, balance at the end of the period | 418,245
Research Models and Services |
Changes in gross carrying amount and accumulated amortization of goodwill |
Gross carrying amount, balance at the beginning of the period | 59,196
Adjustments to Goodwill, Acquisitions | 0
Adjustments to Goodwill, Foreign Exchange | (698)
Gross carrying amount, balance at the end of the period | 58,498
Discovery and Safety Assessment |
Changes in gross carrying amount and accumulated amortization of goodwill |
Gross carrying amount, balance at the beginning of the period | 229,302
Adjustments to Goodwill, Acquisitions | (748)
Adjustments to Goodwill, Foreign Exchange | (3,470)
Gross carrying amount, balance at the end of the period | 225,084
Manufacturing Support |
Changes in gross carrying amount and accumulated amortization of goodwill |
Gross carrying amount, balance at the beginning of the period | 32,579
Adjustments to Goodwill, Acquisitions | 104,972
Adjustments to Goodwill, Foreign Exchange | (2,888)
Gross carrying amount, balance at the end of the period | $ 134,663

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- Definition The increase or decrease to the recorded value of goodwill due to foreign currency translation adjustments and other increases and decreases that are not separately disclosed. + References No definition available. + Details
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- Definition Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
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- Definition Amount before accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a,h) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
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