No definition available.

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- Definition

Minimum availability.

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No definition available.

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Debt Instrument, Covenant Compliance, Minimum Liquidity

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No definition available.

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- Definition

Fixed charge coverage ratio.

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No definition available.

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- Definition

Amount of amortization expense attributable to debt issuance costs.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
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-Subparagraph (b)
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=119993939&loc=d3e28555-108399

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- Definition

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

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No definition available.

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- Definition

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

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-Subparagraph e
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Percentage of principal amount of debt redeemed.

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No definition available.

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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.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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-SubTopic 30
-Section 45
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The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

No definition available.

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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.

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- Definition

The effective interest rate during the reporting period.

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+ 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.

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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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The carrying value as of the balance sheet date of the current portion 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.

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Credit Facilities (Details)	1 Months Ended	3 Months Ended		9 Months Ended		12 Months Ended
Credit Facilities (Details)	Aug. 31, 2019 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)	Dec. 31, 2019 USD ($)	Aug. 09, 2019 USD ($)	Jun. 14, 2018 USD ($)	Mar. 31, 2014 USD ($)	Mar. 27, 2014 USD ($)
Credit Facilities (Details) [Line Items]
Debt Issuance Costs, Gross								$ 1,300,000
General Electric Capital Corporation Loan Agreement [Member]
Credit Facilities (Details) [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity									$ 75,000,000.0	$ 75,000,000.0
Line of Credit, Current
Letters of Credit Outstanding, Amount		10,400,000		10,400,000		9,200,000
Line of Credit Facility, Remaining Borrowing Capacity		36,600,000		$ 36,600,000		$ 41,800,000
Line of Credit Facility, Interest Rate During Period				0.00%		4.53%
General Electric Capital Corporation Loan Agreement [Member] \| Wells Fargo [Member]
Credit Facilities (Details) [Line Items]
Letters of Credit Outstanding, Amount		10,400,000		$ 10,400,000
General Electric Capital Corporation Loan Agreement [Member] \| Letter of Credit [Member] \| 4.25% Convertible Senior Notes (due 2018) [Member]
Credit Facilities (Details) [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity									$ 35,000,000.0
Amended ABL Credit Agreement [Member]
Credit Facilities (Details) [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	$ 60,000,000.0
Fixed Charge Coverage Ratio	1.0
Debt Instrument, Covenant Compliance, Minimum Liquidity	$ 25,000,000.0
Debt Instrument, Covenant Compliance, Minimum Availability	$ 9,000,000.0
Amortization of Debt Issuance Costs		0.1	$ 100,000	$ 300,000	$ 500,000
Amended ABL Credit Agreement [Member] \| Minimum [Member]
Credit Facilities (Details) [Line Items]
Fixed Charge Coverage Ratio	1.1
Amended ABL Credit Agreement [Member] \| London Interbank Offered Rate (LIBOR) [Member] \| Minimum [Member]
Credit Facilities (Details) [Line Items]
Debt Instrument, Basis Spread on Variable Rate				1.50%
Amended ABL Credit Agreement [Member] \| London Interbank Offered Rate (LIBOR) [Member] \| Maximum [Member]
Credit Facilities (Details) [Line Items]
Debt Instrument, Basis Spread on Variable Rate				2.00%
Amended ABL Credit Agreement [Member] \| Base Rate [Member] \| Minimum [Member]
Credit Facilities (Details) [Line Items]
Debt Instrument, Basis Spread on Variable Rate				0.50%
Amended ABL Credit Agreement [Member] \| Base Rate [Member] \| Maximum [Member]
Credit Facilities (Details) [Line Items]
Debt Instrument, Basis Spread on Variable Rate				1.00%
Term Loan Agreement [Member] \| Gacp Finance Co LLC [Member]
Credit Facilities (Details) [Line Items]
Long-term Line of Credit		$ 20,000,000.0		$ 20,000,000.0				$ 20,000,000.0
Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed				10.00%
Debt Issuance Costs, Gross							$ 1,100,000
Term Loan Agreement [Member] \| Gacp Finance Co LLC [Member] \| Year One [Member]
Credit Facilities (Details) [Line Items]
Debt Instrument, Redemption Price, Percentage				2.00%
Term Loan Agreement [Member] \| Gacp Finance Co LLC [Member] \| Year Two [Member]
Credit Facilities (Details) [Line Items]
Debt Instrument, Redemption Price, Percentage				2.00%
Term Loan Agreement [Member] \| Gacp Finance Co LLC [Member] \| Year Three [Member]
Credit Facilities (Details) [Line Items]
Debt Instrument, Redemption Price, Percentage				1.00%