Debt Instrument, Covenant, Change in Control, Redemption Price, Percentage

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- Definition

Debt Instrument, Covenant, Collateral Coverage Ratio, Calculation, Amount Added to Cash and Cash Equivalents

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No definition available.

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- Definition

Debt Instrument, Covenant, Collateral Coverage Ratio Calculation, Average Grantor EBITDA Multiplier for Seven Most Recent Fiscal Quarters

+ References

No definition available.

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- Definition

Debt Instrument, Covenant, Collateral Coverage Ratio, Minimum

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- Definition

Debt Instrument, Covenant, Minimum Fixed Charge Coverage Ratio, Available Borrowings Threshold

+ References

No definition available.

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- Definition

Debt Instrument, Covenant, Minimum Fixed Charge Coverage Ratio, Available Borrowings Threshold, Percent of Lender Commitments

+ References

No definition available.

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- Definition

Debt Instrument, Covenant, Required Collateral Coverage Ratio Not Met, Redemption Period

+ References

No definition available.

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- Definition

Debt Instrument, Covenant, Required Collateral Coverage Ratio Not Met, Redemption Price, Percentage

+ References

No definition available.

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- Definition

Debt Instrument, Debt Default, Triggering Event Threshold, Amount

+ References

No definition available.

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- Definition

Debt Instrument, Redemption, Percentage of Notes

+ References

No definition available.

+ Details

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- Definition

Line of Credit Facility, Accordion Feature, Increase Limit

+ References

No definition available.

+ Details

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- Definition

Line of Credit Facility, Springing Maturity Date, Period Prior to Maturity Date of Convertible Debt

+ References

No definition available.

+ Details

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- Definition

Line of Credit Facility, Springing Maturity Date, Period Prior to Maturity Date of Secured Debt

+ 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
-URI http://asc.fasb.org/extlink&oid=64930739&loc=d3e28878-108400

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399

+ Details

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- Definition

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

+ References

+ Details

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- Definition

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.

+ References

No definition available.

+ Details

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- Definition

Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-Subparagraph e
-URI http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823

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- Definition

Percentage of principal amount of debt redeemed.

+ References

No definition available.

+ 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
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 50
-Section 40
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- Definition

Reflects the difference between the fair value of payments made to legally extinguish a debt and its carrying value at that time. This item excludes the write-off of amounts previously capitalized as debt issuance costs.

+ References

+ Details

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- 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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- 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

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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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- 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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- Definition

Write-off of amounts previously capitalized as debt issuance cost in an extinguishment of debt.

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Debt - Additional Information (Detail)			3 Months Ended	9 Months Ended
Debt - Additional Information (Detail)	Oct. 05, 2017 USD ($)	Apr. 17, 2017 USD ($)	Jun. 30, 2017 USD ($)	Sep. 30, 2017 USD ($)	Sep. 30, 2016 USD ($)	May 08, 2017
Debt Instrument [Line Items]
Charge recognized as a result of redemption				$ 1,500,000	$ 0
Senior Secured Notes Due 2022 \| Convertible Senior Notes
Debt Instrument [Line Items]
Aggregate principal amount		$ 440,000,000
Interest rate		10.75%
Redemption price, percent of principal amount of notes redeemed		100.00%
Percent of notes with option to redeem		35.00%
Redemption price, percentage of principal amount		110.75%
Redemption price if required collateral coverage ratio not met, percentage of principal amount		100.00%
Minimum collateral coverage ratio		1.5
Collateral coverage ratio, amount added to cash and cash equivalents		4.75
Collateral coverage ratio, multiplier for Average Grantor EBITDA for seven most recent fiscal quarters		4
Period to redeem notes without default if required collateral coverage ratio not met		90 days
Redemption price if company experiences change of control, percent of principal amount		101.00%
Senior Notes Due 2017 \| Convertible Senior Notes
Debt Instrument [Line Items]
Interest rate				6.25%		6.25%
Charge recognized as a result of redemption			$ 1,500,000
Premium and expenses paid for redemption of debt			1,300,000
Write off of unamortized discount and fees related to the portion of the notes redeemed			$ 200,000
Credit Agreement \| Revolving Credit Facility
Debt Instrument [Line Items]
Borrowings outstanding				$ 0
Available borrowings				91,500,000
Credit Agreement \| Revolving Credit Facility \| Subsequent Event
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 125,000,000
Accordion feature increase limit	$ 150,000,000
Springing maturity, period prior to maturity date of convertible senior notes due 2021	91 days
Springing maturity, period prior to maturity date of secured notes due 2022	60 days
Credit Agreement \| Letter of Credit
Debt Instrument [Line Items]
Letters of credit outstanding				$ 8,100,000
Credit Agreement \| Line of Credit \| Revolving Credit Facility \| Subsequent Event
Debt Instrument [Line Items]
Requirement to maintain minimum fixed charge coverage ratio, availability threshold, percent of lenders' commitments under facility	10.00%
Requirement to maintain minimum fixed charge coverage ratio, availability threshold	$ 15,000,000
Amount of aggregate default under other debt that would trigger event of default	$ 50,000,000