Summary of Financial Information for Reportable Segments (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 28, 2014	Jun. 29, 2013	Jun. 28, 2014	Jun. 29, 2013	Dec. 31, 2013
Segment Reporting Information [Line Items]
Total net sales	$ 251,578	$ 177,544	$ 417,382	$ 342,614
Total Segment Profit	63,777	39,845	98,007	73,464
Assets	1,863,529		1,863,529		875,294
CMH
Segment Reporting Information [Line Items]
Total net sales	176,820	157,269	322,389	303,933
Total Segment Profit	41,069	35,971	71,595	65,111
Assets	487,021		487,021		400,607
EM
Segment Reporting Information [Line Items]
Total net sales	74,758	20,275	94,993	38,681
Total Segment Profit	22,708	3,874	26,412	8,353
Assets	940,871		940,871		54,939
Corporate, including cash and cash equivalents
Segment Reporting Information [Line Items]
Assets	$ 435,637		$ 435,637		$ 419,748