Supplemental Guarantor Condensed Financial Information (Details 2) (USD $) In Thousands, unless otherwise specified	1 Months Ended	12 Months Ended
	May 31, 2011	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011
Cash flows from operating activities:
Net (loss) income		$ (15,141)	$ (3,420)	$ 10,028
Non-cash adjustments		41,175	40,966	43,817
Changes in operating assets and liabilities, net of effects from purchase of business		53,194	14,331	(24,093)
Net cash provided by operating activities		79,228	51,877	29,752
Cash flows from investing activities:
Purchase of property, plant and equipment		(34,222)	(22,169)	(23,798)
Purchase of intellectual property		(8,662)	(2,500)
Purchase of businesses, net of cash acquired			(1,150)	(1,875)
Net cash used in investing activities		(42,884)	(25,819)	(25,673)
Cash flows from financing activities:
Payments on capital lease obligations		(29)	(26)	(24)
Payments on revolving credit facility, net		(12,000)	(7,000)	3,107
Distribution to RBG		(17,276)	(8,385)
Payment of debt issuance costs	(1,282)			(1,282)
Net cash (used in) provided by financing activities		(29,305)	(15,411)	1,801
Effect of exchange rate changes on cash and cash equivalents		(4,193)	700	(399)
Net change in cash and cash equivalents		2,846	11,347	5,481
Cash and cash equivalents, beginning of year		40,852	29,505	24,024
Cash and cash equivalents, end of year		43,698	40,852	29,505
Issuer
Cash flows from operating activities:
Net (loss) income		(15,141)	(3,420)	10,028
Non-cash adjustments		64,258	31,786	1,839
Changes in operating assets and liabilities, net of effects from purchase of business		4,721	(3,128)	(733)
Net cash provided by operating activities		53,838	25,238	11,134
Cash flows from investing activities:
Purchase of property, plant and equipment		(24,670)	(10,886)	(12,243)
Net cash used in investing activities		(24,670)	(10,886)	(12,243)
Cash flows from financing activities:
Payments on revolving credit facility, net		(12,000)	(7,000)	3,107
Distribution to RBG		(17,276)	(8,385)
Payment of debt issuance costs				(1,282)
Net cash (used in) provided by financing activities		(29,276)	(15,385)	1,825
Net change in cash and cash equivalents		(108)	(1,033)	716
Cash and cash equivalents, beginning of year		1,664	2,697	1,981
Cash and cash equivalents, end of year		1,556	1,664	2,697
Guarantor Subsidiaries
Cash flows from operating activities:
Net (loss) income		81,120	85,609	93,089
Non-cash adjustments		(98,508)	(87,851)	(53,904)
Changes in operating assets and liabilities, net of effects from purchase of business		33,934	19,211	(27,445)
Net cash provided by operating activities		16,546	16,969	11,740
Cash flows from investing activities:
Purchase of property, plant and equipment		(8,329)	(9,862)	(11,077)
Purchase of intellectual property		(8,662)	(2,500)
Purchase of businesses, net of cash acquired			(1,150)	(1,875)
Net cash used in investing activities		(16,991)	(13,512)	(12,952)
Cash flows from financing activities:
Payments on capital lease obligations		(29)	(26)	(24)
Net cash (used in) provided by financing activities		(29)	(26)	(24)
Net change in cash and cash equivalents		(474)	3,431	(1,236)
Cash and cash equivalents, beginning of year		9,244	5,813	7,049
Cash and cash equivalents, end of year		8,770	9,244	5,813
Non-Guarantor Subsidiaries
Cash flows from operating activities:
Net (loss) income		(8,811)	3,003	1,863
Non-cash adjustments		3,116	8,419	930
Changes in operating assets and liabilities, net of effects from purchase of business		14,539	(1,752)	4,085
Net cash provided by operating activities		8,844	9,670	6,878
Cash flows from investing activities:
Purchase of property, plant and equipment		(1,223)	(1,421)	(478)
Purchase of businesses, net of cash acquired
Net cash used in investing activities		(1,223)	(1,421)	(478)
Cash flows from financing activities:
Effect of exchange rate changes on cash and cash equivalents		(4,193)	700	(399)
Net change in cash and cash equivalents		3,428	8,949	6,001
Cash and cash equivalents, beginning of year		29,944	20,995	14,994
Cash and cash equivalents, end of year		33,372	29,944	20,995
Eliminations
Cash flows from operating activities:
Net (loss) income		(72,309)	(88,612)	(94,952)
Non-cash adjustments		72,309	88,612	94,952
Cash flows from investing activities:
Purchase of businesses, net of cash acquired