Tax Cuts And Jobs Act Of 2017, Reclassification From AOCI To Retained Earnings, Tax Effect

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Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, with jurisdictional netting.

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Basis of Presentation (Details) - USD ($) $ in Thousands	3 Months Ended
Basis of Presentation (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Apr. 01, 2017	Dec. 30, 2017
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Amount reclassified from accumulated other comprehensive loss to retained earnings	$ 3,330
Adjustments to operating income related to adoption of new accounting guidance	67,829	$ 69,706
Other assets	136,632		$ 124,002
Retained earnings	346,044		288,658
Deferred tax assets	26,237		$ 22,654
Accounting Standards Update 2017-07
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Adjustments to operating income related to adoption of new accounting guidance		200
Accounting Standards Update 2016-01
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Other assets	1,900
Retained earnings	1,400
Deferred tax assets	500
RMS
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Adjustments to operating income related to adoption of new accounting guidance	38,527	37,690
RMS \| Accounting Standards Update 2017-07
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Adjustments to operating income related to adoption of new accounting guidance		(100)
DSA
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Adjustments to operating income related to adoption of new accounting guidance	40,859	38,335
DSA \| Accounting Standards Update 2017-07
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Adjustments to operating income related to adoption of new accounting guidance		(300)
Manufacturing
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Adjustments to operating income related to adoption of new accounting guidance	28,523	26,600
Manufacturing \| Accounting Standards Update 2017-07
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Adjustments to operating income related to adoption of new accounting guidance		(100)
Unallocated corporate
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Adjustments to operating income related to adoption of new accounting guidance	$ (40,080)	(32,919)
Unallocated corporate \| Accounting Standards Update 2017-07
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Adjustments to operating income related to adoption of new accounting guidance		$ 600