Receivables (Net Components Of Receivables) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Receivables [Abstract]
Customers, trade	$ 691,553	$ 696,856
Income tax receivable	0	1,703
Other	25,793	31,311
Receivables, gross	717,346	729,870
Less allowance for discounts, returns, claims and doubtful accounts	37,873	43,705
Receivables, net	$ 679,473	$ 686,165