Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 29, 2014	Jun. 30, 2013	Jun. 29, 2014	Jun. 30, 2013
Consolidated Statements of Comprehensive Income
Net income before attribution to noncontrolling interests	$ 17,839	$ 18,045	$ 38,380	$ 38,364
Other comprehensive income (loss), before tax:
Foreign currency translation adjustments	959	(586)	926	(1,721)
Interest rate swaps	(404)	190	(447)	73
Other comprehensive income (loss), before tax	555	(396)	479	(1,648)
Income tax effect:
Foreign currency translation adjustments	(355)	217	(343)	637
Interest rate swaps	149	(71)	165	(27)
Income tax effect	(206)	146	(178)	610
Other comprehensive income (loss), net of tax	349	(250)	301	(1,038)
Comprehensive income before attribution to noncontrolling interests	18,188	17,795	38,681	37,326
Comprehensive income, redeemable noncontrolling interests	(1,086)	(895)	(2,341)	(1,908)
Comprehensive (loss) income, nonredeemable noncontrolling interests	(5)		20
Comprehensive income attributable to the Company	$ 17,097	$ 16,900	$ 36,360	$ 35,418