Receivables, net (Net components of receivables) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 29, 2012	Dec. 31, 2011
Receivables [Abstract]
Customers, trade	$ 802,605	$ 696,856
Income tax receivable	613	1,703
Other	54,835	31,311
Receivables, gross	858,053	729,870
Less allowance for discounts, returns, claims and doubtful accounts	40,839	43,705
Receivables, net	$ 817,214	$ 686,165