Receivables (Tables)

12 Months Ended

Dec. 31, 2017

Receivables [Abstract]

Net Components Of Receivables

	December 31, 2017		December 31, 2016
Customers, trade	$	1,538,348	1,386,306
Income tax receivable	9,835		8,616
Other	96,079		59,564
	1,644,262		1,454,486
Less allowance for discounts, returns, claims and doubtful accounts	86,103		78,335
Receivables, net	$	1,558,159	1,376,151

Allowances For Discounts, Returns, Claims And Doubtful Accounts

The following table reflects the activity of allowances for discounts, returns, claims and doubtful accounts for the years ended December 31:

	Balance at beginning of year		Acquisitions	Additions charged to net sales or costs and expenses	Deductions(1)	Balance at end of year
2015	$	72,603	7,750	272,329	273,735	78,947
2016	78,947		—	296,419	297,031	78,335
2017	78,335		6,510	308,507	307,249	86,103

(1) Represents charge-offs, net of recoveries.