Long-Term Debt - Line of Credit (Details) - ABL Facility - USD ($)
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|
3 Months Ended |
6 Months Ended |
Jun. 01, 2015 |
Jun. 30, 2018 |
Jun. 30, 2017 |
Jun. 30, 2018 |
Jun. 30, 2017 |
| Line of Credit Facility [Line Items] |
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|
|
|
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| Interest expense |
|
$ 200,000
|
$ 200,000
|
$ 400,000
|
$ 500,000
|
| Remaining borrowing capacity |
|
199,300,000
|
|
199,300,000
|
|
| Issuance costs |
$ 3,100,000
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|
|
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| Life of ABL facility (in years) |
5 years
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|
|
|
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| Amortization of debt issuance costs |
|
200,000
|
200,000
|
400,000
|
400,000
|
| Revolving Credit Facility |
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| Line of Credit Facility [Line Items] |
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| Amount outstanding on ABL facility |
|
0
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$ 0
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$ 0
|
0
|
| Current borrowing capacity |
$ 200,000,000
|
|
|
|
|
| Increase to borrowing capacity |
100,000,000
|
|
|
|
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| Maximum borrowing capacity |
$ 300,000,000
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|
|
|
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| Commitment fee percentage |
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|
|
0.375%
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| Proceeds from borrowing on ABL facility |
|
|
|
$ 12,000,000
|
$ 32,000,000
|
| Remaining borrowing capacity |
|
200,000,000
|
|
200,000,000
|
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| Revolving Credit Facility | Federal Funds Effective Rate |
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| Line of Credit Facility [Line Items] |
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| Basis spread on variable rate (as a percent) |
0.50%
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| Revolving Credit Facility | Federal Funds Effective Rate | Minimum |
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| Line of Credit Facility [Line Items] |
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| Basis spread on variable rate (as a percent) |
0.25%
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| Revolving Credit Facility | Federal Funds Effective Rate | Maximum |
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| Line of Credit Facility [Line Items] |
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| Basis spread on variable rate (as a percent) |
0.75%
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| Revolving Credit Facility | LIBOR |
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| Line of Credit Facility [Line Items] |
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|
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| Basis spread on variable rate (as a percent) |
1.00%
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| Revolving Credit Facility | LIBOR | Minimum |
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| Line of Credit Facility [Line Items] |
|
|
|
|
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| Basis spread on variable rate (as a percent) |
1.25%
|
|
|
|
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| Revolving Credit Facility | LIBOR | Maximum |
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| Line of Credit Facility [Line Items] |
|
|
|
|
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| Basis spread on variable rate (as a percent) |
1.75%
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| Letter of Credit |
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| Line of Credit Facility [Line Items] |
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| Letters of credit outstanding, amount |
|
$ 700,000
|
|
$ 700,000
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