Cash Discounts And Doubtful Accounts (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Reserve for Cash Discount and Allowances for Doubtful Accounts
Movement in Valuation Allowances and Reserves [Roll Forward]
Beginning Balance	$ 7,073	$ 6,837	$ 6,868
Provision (Charged to Expense)	28,589	29,087	24,971
Deductions	(29,783)	(28,851)	(25,002)
Ending Balance	5,879	7,073	6,837
Allowance for cash discounts
Movement in Valuation Allowances and Reserves [Roll Forward]
Beginning Balance	1,764	1,560	1,411
Provision (Charged to Expense)	26,044	25,318	22,943
Deductions	(26,072)	(25,114)	(22,794)
Ending Balance	1,736	1,764	1,560
Allowance for doubtful accounts
Movement in Valuation Allowances and Reserves [Roll Forward]
Beginning Balance	5,309	5,277	5,457
Provision (Charged to Expense)	2,545	3,769	2,028
Deductions	(3,711)	(3,737)	(2,208)
Ending Balance	$ 4,143	$ 5,309	$ 5,277

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

No definition available.

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- Definition

Total of allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 09
-Article 12

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- Definition

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- Definition

Total of the deductions in a given period to allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs, representing receivables written off as uncollectible and portions of the reserves utilized, respectively.

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