Debt (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011	Apr. 02, 2011
Short-term debt:
Short-term debt	$ 79,443	$ 47,513	$ 146,423
Long-term debt:
Long-term debt	207,407	208,477
Total Debt	286,850	255,990	146,423
Current portion of 2011 Term Loan [Member]
Short-term debt:
Short-term debt	2,000	2,000
CKJEA Notes and other [Member]
Short-term debt:
Short-term debt	58,701	43,021	38,309
2008 Credit Agreements [Member]
Short-term debt:
Short-term debt	16,171		96,707
Premium on interest rate cap [Member]
Short-term debt:
Short-term debt	2,571	2,492
Long-term debt:
Long-term debt	10,907	11,477
Italian Note [Member]
Short-term debt:
Short-term debt			11,407
2011 Term B Loan [Member]
Long-term debt:
Long-term debt	$ 196,500	$ 197,000