Debt Instrument, Carrying Value to Face Value, Percentage

No definition available.

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- Definition

Debt Instrument, Redeemable with Equity Issuance Proceeds, Required Repurchase Due to Asset Disposition, Redemption Price, Percentage

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	instant

- Definition

Debt Instrument, Redeemable with Equity Issuance Proceeds, Required Repurchase Due to Change in Control Redemption Price, Percentage

+ References

No definition available.

+ Details

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Balance Type:	na
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- Definition

Debt Instrument, Redeemable with Debt Issuance Proceeds, Minimum Percentage Outstanding After Redemption

+ References

No definition available.

+ Details

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- Definition

Debt Instrument Stated Percentage of Outstanding Non-Voting Equity Interests of First Tier Foreign Subsidiaries That Secure Debt Obligations

+ References

No definition available.

+ Details

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Period Type:	instant

- Definition

Debt Instrument, Stated Percentage of Outstanding Equity Interests of First Tier Foreign Subsidiaries That Secure Debt Obligations

+ References

No definition available.

+ Details

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Period Type:	instant

- Definition

Debt Instrument Redeemable with Debt Proceeds, Maximum Principal Percentage Redeemable per Occasion

+ References

No definition available.

+ Details

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- Definition

Debt instrument, Redeemable with Debt Issuance Proceeds, Redemption Price, Percentage

+ References

No definition available.

+ Details

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- Definition

Line of Credit, Additional Capital Expenditures Covenant, Pro Forma Senior Leverage Ratio, Maximum

+ References

No definition available.

+ Details

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- Definition

Line of Credit, Additional Capital Expenditures Covenant, Pro Forma Total Leverage Ratio, Maximum

+ References

No definition available.

+ Details

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- Definition

Line of Credit Facility, Additional Capital Expenditures Covenant, Maximum Amount Outstanding, Threshold

+ References

No definition available.

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

Line of Credit Facility, Capital Expenditure Limitation, Maximum

+ References

No definition available.

+ Details

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- Definition

Line of Credit Facility, Capital Expenditure Limitation, Maximum Amount Unused from Prior Fiscal Year Available to Increase Current Year Capital Expenditure, Threshold

+ References

No definition available.

+ Details

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- Definition

Line of Credit Facility, Capital Expenditure Limitation, Percentage Unused from Prior Year Available to Increase Current Year Expenditure, Threshold

+ References

No definition available.

+ Details

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- Definition

Line of Credit Facility, Covenant, Cash Threshold for Mandatory Repayment of Revolving Credit Facility

+ References

No definition available.

+ Details

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- Definition

Line of Credit Facility, Covenant, Maximum Senior Ratio of Indebtedness to Defined Earnings Before Interest, Taxes, Depreciation and Amortization (EBITDA)

+ References

No definition available.

+ Details

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Period Type:	instant

- Definition

Line of Credit Facility, Covenant, Minimum Ratio of Interest Coverage to Defined Earnings Before Interest, Taxes, Depreciation and Amortization (EBITDA)

+ References

No definition available.

+ Details

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- Definition

Line of Credit Facility, Covenant, Minimum Requirement for Defined Earnings Before Interest, Taxes, Depreciation and Amortization (EBITDA)

+ References

No definition available.

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

Line of Credit Facility, Reduced Maximum Borrowing Capacity

+ References

No definition available.

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

Amount of amortization expense attributable to debt issuance costs.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28555-108399

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

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- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
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+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

+ Details

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- Definition

Face (par) amount of the original debt instrument that was repurchased.

+ References

No definition available.

+ Details

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Balance Type:	debit
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- Definition

Amount, before accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

+ References

+ Details

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- Definition

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 470
-SubTopic 50
-Section 40
-Paragraph 2
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Balance Type:	credit
Period Type:	duration

- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

No definition available.

+ Details

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Balance Type:	credit
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- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 210
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+ Details

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Period Type:	instant

- References

No definition available.

+ Details

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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.

+ References

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

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

+ References

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt.

+ References

No definition available.

+ Details

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Balance Type:	debit
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- References

No definition available.

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Debt (Details) - USD ($)			3 Months Ended		9 Months Ended
Debt (Details) - USD ($)	Jun. 30, 2016	Mar. 19, 2014	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Oct. 15, 2016	Oct. 23, 2014	Mar. 18, 2014	Nov. 01, 2011
Senior Notes [Abstract]
Amortization of Financing Costs					$ 1,300,000	$ 1,200,000
Loss on extinguishment of debt			$ 0	$ (490,000)	$ (299,000)	$ (490,000)
Senior Notes, 2014 [Member]
Senior Notes [Abstract]
Debt Instrument, Face Amount									$ 300,000,000
Debt Instrument, Interest Rate, Stated Percentage									6.125%
Proceeds from Issuance of Debt		$ 293,900,000
Debt Instrument, Actual Value to Face Value, Percentage									100.00%
Deferred Finance Costs, Gross									$ 6,100,000
Senior Notes, 2010 and 2011 [Member]
Senior Notes [Abstract]
Debt Instrument, Interest Rate, Stated Percentage										9.875%
Debt Instrument, Repurchased Face Amount								$ 425,000,000
Senior Notes, 2014 [Member] \| Redemption Prior to March 15, 2017 [Member]
Senior Notes [Abstract]
Debt Instrument Subject to Early Redemption, Percentage of Aggregate Principal Redeemable prior to March 15, 2017									35.00%
Debt instrument, Redeemable with Debt Issuance Proceeds, Redemption Price, Percentage									106.125%
Debt Instrument, Redeemable with Debt Issuance Proceeds, Minimum Percentage Outstanding After Redemption									65.00%
Senior Notes [Member]
Senior Notes [Abstract]
Debt Instrument, Redeemable with Equity Issuance Proceeds, Required Repurchase Due to Change in Control Redemption Price, Percentage									101.00%
Debt Instrument, Redeemable with Equity Issuance Proceeds, Required Repurchase Due to Asset Disposition, Redemption Price, Percentage									100.00%
Revolving Credit Facility [Member] \| Senior secured revolving credit facility [Member]
Senior Secured Revolving Credit Facility [Abstract]
Aggregate cash threshold for mandatory debt pay down	$ 20,000,000
Revolving Credit Facility [Member] \| Senior secured revolving credit facility [Member]
Senior Secured Revolving Credit Facility [Abstract]
Maximum borrowing capacity	175,000,000
Maximum borrowing capacity, further reductions	$ 150,000,000
Outstanding Voting Equity Interests of First Tier Foreign Subsidiaries That Secure Debt Obligations	65.00%
Outstanding Non-voting equity interest used to secure debt	100.00%
Aggregate outstanding commitment threshold	$ 150,000,000
Pro forma senior leverage ratio	2.00
Pro forma total leverage ratio	4.50
Revolving Credit Facility [Member] \| Senior secured revolving credit facility [Member] \| London Interbank Offered Rate (LIBOR) [Member]
Senior Secured Revolving Credit Facility [Abstract]
Basis spread	5.50%
Revolving Credit Facility [Member] \| Senior secured revolving credit facility [Member] \| Prime Rate [Member]
Senior Secured Revolving Credit Facility [Abstract]
Basis spread	4.50%
Revolving Credit Facility [Member] \| Senior secured revolving credit facility [Member] \| For the two-fiscal quarter periods ending December 31, 2016 [Member] [Member]
Senior Secured Revolving Credit Facility [Abstract]
Minimum EBITDA requirement	$ 4,000,000
Revolving Credit Facility [Member] \| Senior secured revolving credit facility [Member] \| For the three-fiscal quarter periods ending March 31, 2017 [Member] [Member]
Senior Secured Revolving Credit Facility [Abstract]
Minimum EBITDA requirement	7,000,000
Revolving Credit Facility [Member] \| Senior secured revolving credit facility [Member] \| For fiscal year 2016 [Member]
Senior Secured Revolving Credit Facility [Abstract]
Restrictions for capital expenditures	$ 35,000,000
Revolving Credit Facility [Member] \| Senior secured revolving credit facility [Member] \| For the quarterly period ending September 30, 2016 [Member]
Senior Secured Revolving Credit Facility [Abstract]
Minimum interest coverage ratio, calculated by EBITDA	1.15
Revolving Credit Facility [Member] \| Senior secured revolving credit facility [Member] \| For the quarterly period ending September 30, 2017 [Member]
Senior Secured Revolving Credit Facility [Abstract]
Minimum interest coverage ratio, calculated by EBITDA	1.0
Revolving Credit Facility [Member] \| Senior secured revolving credit facility [Member] \| On September 30, 2016 [Member]
Senior Secured Revolving Credit Facility [Abstract]
Maximum senior consolidated leverage ratio, divided by EBITDA	4.5
Revolving Credit Facility [Member] \| Senior secured revolving credit facility [Member] \| On September 30, 2017 [Member]
Senior Secured Revolving Credit Facility [Abstract]
Maximum senior consolidated leverage ratio, divided by EBITDA	5.0
Revolving Credit Facility [Member] \| Senior secured revolving credit facility [Member] \| On December 31, 2017 [Member]
Senior Secured Revolving Credit Facility [Abstract]
Maximum senior consolidated leverage ratio, divided by EBITDA	4.0
Revolving Credit Facility [Member] \| Senior secured revolving credit facility [Member] \| On March 31, 2018 [Member]
Senior Secured Revolving Credit Facility [Abstract]
Maximum senior consolidated leverage ratio, divided by EBITDA	3.5
Revolving Credit Facility [Member] \| Senior secured revolving credit facility [Member] \| On June 30, 2018 [Member]
Senior Secured Revolving Credit Facility [Abstract]
Maximum senior consolidated leverage ratio, divided by EBITDA	3.25
Revolving Credit Facility [Member] \| Senior secured revolving credit facility [Member] \| Subsequent to June 30, 2018 [Member] [Member]
Senior Secured Revolving Credit Facility [Abstract]
Maximum senior consolidated leverage ratio, divided by EBITDA	2.5
Revolving Credit Facility [Member] \| Senior secured revolving credit facility [Member] \| For the quarterly period ending December 31, 2017 [Member]
Senior Secured Revolving Credit Facility [Abstract]
Minimum interest coverage ratio, calculated by EBITDA	1.25
Revolving Credit Facility [Member] \| Senior secured revolving credit facility [Member] \| For any quarterly period ending after December 31, 2017 [Member]
Senior Secured Revolving Credit Facility [Abstract]
Minimum interest coverage ratio, calculated by EBITDA	1.5
Revolving Credit Facility [Member] \| Senior secured revolving credit facility [Member] \| For the four-fiscal quarter periods ending June 30, 2017 [Member]
Senior Secured Revolving Credit Facility [Abstract]
Minimum EBITDA requirement	$ 12,000,000
Revolving Credit Facility [Member] \| Senior secured revolving credit facility [Member] \| For fiscal year 2017 [Member]
Senior Secured Revolving Credit Facility [Abstract]
Restrictions for capital expenditures	$ 35,000,000
Capital expenditure increase threshold, percentage increase of unused portion	50.00%
Capital expenditure increase threshold, maximum	$ 5,000,000
Revolving Credit Facility [Member] \| Senior secured revolving credit facility [Member] \| For fiscal year 2018 [Member]
Senior Secured Revolving Credit Facility [Abstract]
Restrictions for capital expenditures	$ 50,000,000
Capital expenditure increase threshold, percentage increase of unused portion	50.00%
Capital expenditure increase threshold, maximum	$ 7,500,000.0
Revolving Credit Facility [Member] \| Senior secured revolving credit facility [Member] \| For fiscal year 2019 [Member]
Senior Secured Revolving Credit Facility [Abstract]
Restrictions for capital expenditures	$ 50,000,000
Capital expenditure increase threshold, percentage increase of unused portion	50.00%
Capital expenditure increase threshold, maximum	$ 7,500,000.0
Subsequent Event [Member] \| Revolving Credit Facility [Member] \| Senior secured revolving credit facility [Member]
Senior Secured Revolving Credit Facility [Abstract]
Amount outstanding							$ 111,500,000
Letters of credit outstanding							17,300,000
Borrowing available							$ 46,200,000