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Debt - ABL Loan Agreement (Details) - USD ($) | 12 Months Ended |
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Dec. 31, 2017 | Dec. 21, 2017
Revolving Credit Facility | ABL Credit Facility |  |
Debt Instrument [Line Items] |  |
Line credit maximum borrowing amount |  | $ 75,000,000
Revolving Credit Facility | ABL Revlover |  |
Debt Instrument [Line Items] |  |
Line of credit facility, borrowing base | $ 48,700,000 |
Borrowing Base Greater than 50% | London Interbank Offered Rate (LIBOR) | ABL Revlover |  |
Debt Instrument [Line Items] |  |
Debt instrument margin rate | 1.75% |
Borrowing Base Greater than 50% | Prime Rate | ABL Revlover |  |
Debt Instrument [Line Items] |  |
Debt instrument margin rate | 0.75% |
Borrowing Base Greater than 30% and less than or Equal to 50% | London Interbank Offered Rate (LIBOR) | ABL Revlover |  |
Debt Instrument [Line Items] |  |
Debt instrument margin rate | 2.00% |
Borrowing Base Greater than 30% and less than or Equal to 50% | Prime Rate | ABL Revlover |  |
Debt Instrument [Line Items] |  |
Debt instrument margin rate | 1.00% |
Borrowing Base Less Than or Equal to 30% | London Interbank Offered Rate (LIBOR) | ABL Revlover |  |
Debt Instrument [Line Items] |  |
Debt instrument margin rate | 2.25% |
Borrowing Base Less Than or Equal to 30% | Prime Rate | ABL Revlover |  |
Debt Instrument [Line Items] |  |
Debt instrument margin rate | 1.25% |

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- Definition Line of Credit Facility, Borrowing Base + References No definition available. + 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 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 Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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