Goodwill and Other Intangible Assets - Changes in Goodwill (Details) - USD ($) $ in Thousands			3 Months Ended	6 Months Ended	9 Months Ended	12 Months Ended
Oct. 01, 2015	Oct. 01, 2014	Mar. 31, 2015	Mar. 31, 2014	Jun. 30, 2015	Jun. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2015	Dec. 31, 2014
Changes in Goodwill [Abstract]
Balance	$ 284,708	$ 285,881	$ 285,283	$ 29,831	$ 285,283	$ 29,831	$ 285,283	$ 29,831	$ 285,283	$ 29,831
Acquisitions						171,269		271,249		271,249
Impairments	$ 0	$ 0
Dispositions						(15,284)		(15,284)		(15,284)
Foreign currency translation			391	606	73	549	(575)	85	(573)	(513)
Balance			$ 285,674	$ 30,437	$ 285,356	$ 186,365	$ 284,708	$ 285,881	$ 284,710	$ 285,283

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Amount after 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
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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

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- Definition

Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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Amount of increase (decrease) from foreign currency translation adjustments 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

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Amount of divestiture 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

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