Vendor and customer rebates and allowances.

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Accrued customer rebates and allowances as of the balance sheet date.

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- Definition

Rebates and allowances receivable from the vendor as of the balance sheet date.

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No definition available.

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- Definition

Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 12
-Section 13
-Sentence Column B

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Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Cash
-URI http://asc.fasb.org/extlink&oid=6506951

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-Publisher FASB
-Name Accounting Standards Codification
-Glossary Cash Equivalents
-URI http://asc.fasb.org/extlink&oid=6507016

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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 18
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- Definition

Fixed interest rate related to the interest rate derivative.

+ References

No definition available.

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Fair value as of the balance sheet date of all derivative assets not designated as hedging instruments.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4B
-Subparagraph (c)(2)
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Fair value as of the balance sheet date of all derivative liabilities not designated as hedging instruments.

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Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22)
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Fair value portion of notes payable.

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-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
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Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income.

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-Name Accounting Standards Codification
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-Section 50
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Summary of Significant Accounting Policies (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015	Mar. 31, 2016	Feb. 16, 2016
Vendor and Customer Rebates and Allowances [Abstract]
Vendor rebates and allowances	$ 5,900		$ 5,900		$ 7,700
Customer Rebates and Allowances	34,400		34,400		27,700
Operating Leases, Rent Expense, Net [Abstract]
Rental expense	4,600	$ 4,800	13,500	$ 13,800
Interest Rate Derivatives [Abstract]
Long-term debt	467,232		$ 467,232		$ 344,589
Accounts Receivable [Member] \| Credit Concentration Risk [Member] \| Top Two Customers [Member]
Risks and Uncertainties [Abstract]
Concentration of credit risk			12.00%		10.00%
Medium-term notes [Member] \| Term Loans Due 2022 and 2026 [Member]
Interest Rate Derivatives [Abstract]
Long-term debt	125,000		$ 125,000
Interest Rate Swap - $50 million notional amount fixed at 1.007% [Member] \| Not Designated as Hedging Instrument [Member]
Interest Rate Derivatives [Abstract]
Interest rate swaps, notional amounts							$ 50,000
Interest rate swaps, fixed interest rate							1.007%
Interest Rate Swap - $75 million notional amount fixed at 1.256% [Member] \| Not Designated as Hedging Instrument [Member]
Interest Rate Derivatives [Abstract]
Interest rate swaps, notional amounts						$ 75,000
Interest rate swaps, fixed interest rate						1.256%
Reported Value Measurement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Abstract]
Senior notes, book value	465,500		465,500		$ 300,000
Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Abstract]
Senior notes, book value	474,600		474,600		309,000
Fair Value, Inputs, Level 2 [Member] \| Interest Rate Swap [Member] \| Not Designated as Hedging Instrument [Member] \| Other assets [Member]
Interest Rate Derivatives [Abstract]
Fair value of interest rate swap agreements, Asset	44		44
Fair Value, Inputs, Level 2 [Member] \| Interest Rate Swap [Member] \| Not Designated as Hedging Instrument [Member] \| Other long-term liabilities [Member]
Interest Rate Derivatives [Abstract]
Fair value of interest rate swap agreements, Liability	809		809
Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 1 [Member] \| Money Market Funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Abstract]
Money market funds, fair value	$ 98,400		$ 98,400		$ 170,200