Receivables (Allowances For Discounts, Returns, Claims And Doubtful Accounts) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Allowance for Doubtful Accounts Receivable [Roll Forward]
Balance at beginning of year	$ 77,037		$ 37,873		$ 43,705
Acquisitions	0		36,992		0
Additions charged to costs and expenses	252,982		197,973		180,616
Deductions	257,416	[1]	195,801	[1]	186,448	[1]
Balance at end of year	$ 72,603		$ 77,037		$ 37,873

[1] Represents charge-offs, net of recoveries.