Receivables (Allowances For Discounts, Returns, Claims And Doubtful Accounts) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Allowance for Doubtful Accounts Receivable [Roll Forward]
Balance at beginning of year	$ 72,603	$ 77,037	$ 37,873
Acquisitions	7,750	0	36,992
Additions charged to costs and expenses	272,329	252,982	197,973
Deductions	273,735	257,416	195,801
Balance at end of year	$ 78,947	$ 72,603	$ 77,037