Amount of assets pledged to secure a debt instrument.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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The average effective interest rate during the reporting period.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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No definition available.

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Subparagraph (SX 210.7-03(a)(16))
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- Definition

The cash inflow from additional borrowings, net of cash paid to third parties in connection with debt origination.

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No definition available.

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- Definition

The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

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- Definition

Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.

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Debt Obligations - Trade Receivables Facility (Details) - USD ($)		3 Months Ended				6 Months Ended
	Nov. 29, 2016	Mar. 31, 2018	Dec. 31, 2017	Mar. 31, 2017	Dec. 31, 2016	Mar. 31, 2018	Mar. 31, 2017	Nov. 20, 2017	Sep. 30, 2017
Debt Instrument [Line Items]
Proceeds from borrowings						$ 95,000,000	$ 75,000,000
Repayments of long-term debt						15,000,000	$ 83,000,000
Short-term debt outstanding amount		$ 0				0			$ 75,000,000
Secured Debt \| Trade Receivables Facility
Debt Instrument [Line Items]
Principal amount of line of credit	$ 125,000,000							$ 175,000,000
Secured Debt \| Line of Credit \| Trade Receivables Facility
Debt Instrument [Line Items]
Proceeds from borrowings			$ 89,000,000
Repayments of long-term debt						1,000,000
Long-term debt outstanding amount		163,000,000				163,000,000
Total borrowing capacity remaining		$ 12,000,000				$ 12,000,000
Weighted average interest rates		2.60%		1.60%		2.40%	1.60%
Line of Credit \| Secured Debt \| Trade Receivables Facility
Debt Instrument [Line Items]
Term of debt	1 year
Proceeds from borrowings					$ 75,000,000
Short-term debt outstanding amount									75,000,000
Financing Subsidiary \| Secured Debt \| Line of Credit \| Trade Receivables Facility
Debt Instrument [Line Items]
Accounts receivable pledged as collateral		$ 281,000,000				$ 281,000,000			$ 247,000,000