The amount of additional term loan to be borrowed as per agreement .

No definition available.

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Debt instrument amount withdrawn.

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The percentage of annual administrative fee payable on loan facility.

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No definition available.

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Percentage of the fee that accompanies borrowing money under the debt instrument.

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- Definition

Debt instrument increased commitment amount.

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The amount of term loan to be borrowed as per agreement initially.

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Period of time for interest payment from the date of issuance, 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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The fee, expressed as a percentage of the prepayment amount , for the term loan facility of first year..

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The fee, expressed as a percentage of the prepayment amount , for the term loan facility of second year..

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The fee, expressed as a percentage of the prepayment amount , for the term loan facility of third year..

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No definition available.

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Represents the principal amount of notes used as denominator for purposes of computing the conversion ratio of convertible debt.

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Debt instrument remaining unfunded commitment amount.

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Represents the price at which the debt may be repurchased, as a percentage of the principal amount in the event of a "fundamental change," as defined in the Indenture.

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No definition available.

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Debt instrument scheduled commitment extended termination date.

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No definition available.

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Fixed charge coverage ratio.

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No definition available.

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Initial 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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No definition available.

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Percentage of minimum drawn balance under the credit facility arrangement.

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No definition available.

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Amount of borrowing capacity reduces due to the amendments in borrowing capacity.

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No definition available.

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Aggregate par or stated value of issued nonredeemable common stock (or common stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable common shares, par value and other disclosure concepts are in another section within stockholders' equity.

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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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Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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The price per share of the conversion feature embedded in the debt instrument.

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Ratio applied to the conversion of debt instrument into equity with equity shares divided by debt principal amount.

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The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR.

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No definition available.

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

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

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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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Fair value amount of debt instrument that was repurchased.

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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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Amount, after accumulated amortization, of debt discount.

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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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Debt - Additional Information (Details)		1 Months Ended						3 Months Ended
Debt - Additional Information (Details)	Jun. 14, 2017 USD ($)	Aug. 31, 2019 USD ($)	Jul. 31, 2019	May 31, 2019 USD ($)	Apr. 30, 2019	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Sep. 30, 2019 USD ($) $ / shares	Mar. 31, 2019	Jun. 30, 2018	Jun. 30, 2019 USD ($)	Aug. 31, 2017 USD ($)
Debt
Common stock value								$ 89,000			$ 89,000
Principal amount of the Notes								205,298,000			176,296,000
Debt discount costs								13,194,000			12,534,000
Minimum
Debt
Fixed Charge Coverage Ratio									50.00%	75.00%
Revolving Credit Facility
Debt
Principal amount of the Notes								31,205,000			28,265,000
Initial borrowing capacity	$ 52,000,000
Minimum drawn balance (as a percent)	30.00%
Outstanding revolving credit facility								$ 31,200,000
90-day LIBOR \| Revolving Credit Facility
Debt
Interest rate determination basis								90-day LIBOR
Variable rate (as a percent)	4.50%			3.50%	4.50%
Repurchase
Debt
Repurchase/Retirement of existing notes												$ 28,000,000
Revolving Credit Agreement \| Revolving Credit Facility
Debt
Reduced borrowing capacity							$ 32,000,000
Term Loan Facility due December 2022
Debt
Principal amount of the Notes								$ 89,093,000			63,031,000
Debt discount costs								$ 4,320,000			$ 2,951,000
Term Loan Facility due December 2022 \| Term loan
Debt
Initial term loan borrowing capacity							40,000,000
Additional term loan borrowing capacity							$ 20,000,000
Loan prepayment fees for first year (percentage)							3.00%
Loan prepayment fees for second year (percentage)							2.00%
Loan prepayment fees for third year (percentage)							1.00%
Term of loan (in months)							60 months
Term of interest payable (in months)							24 months
Administrative fee payable on term loan as a percentage							0.25%
Final payment of administrative fee payable on term loan as a percentage							4.00%
Debt instrument amount withdrawn						$ 5,000,000
Debt instrument scheduled commitment extended termination date						Jun. 30, 2019
Debt instrument remaining unfunded commitment amount						$ 15,000,000
Term Loan Facility due December 2022 \| 90-day LIBOR \| Term loan
Debt
Interest rate determination basis								90-day LIBOR
Variable rate (as a percent)							6.75%
Term Loan Facility Due May 2024 \| Term loan
Debt
Debt instrument increased commitment amount		$ 25,000,000		$ 500,000
Debt discount costs				$ 1,500,000				$ 1,600,000
Term Loan Facility Due May 2024 \| 90-day LIBOR \| Term loan
Debt
Interest rate determination basis								90-day LIBOR
Variable rate (as a percent)		6.75%	5.50%	5.50%	6.75%
3.75% Convertible Senior Notes due 2022
Debt
Interest rate (as a percent)								3.75%			3.75%	3.75%
Conversion rate, number of shares to be issued per $1000 of principal amount (in shares)								174.8252
Principal amount used for debt instrument conversion ratio								$ 1,000
Conversion price (in dollars per share) \| $ / shares								$ 5.72
Aggregate principal amount of debt issued												$ 85,000,000
Repurchase price, as a percentage of the principal amount, in the event of a fundamental change, as defined in Indenture								100.00%
Principal amount of the Notes								$ 85,000,000			$ 85,000,000
Debt discount costs								$ 8,874,000			$ 9,583,000
3.75% Convertible Senior Notes due 2022 \| Exchange
Debt
Aggregate principal amount of debt issued												53,000,000
3.75% Convertible Senior Notes due 2022 \| Repurchase
Debt
Aggregate principal amount of debt issued												32,000,000
3.50% Convertible Notes due 2018 and 3.5% Series A Senior Notes due February 2018 \| Exchange
Debt
Aggregate principal amount of debt issued												$ 47,000,000