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Long-Term Debt - Components of Long-Term Debt 2 (Detail) | 12 Months Ended |  |
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Sep. 30, 2017 | Dec. 31, 2015 | Nov. 09, 2015
Senior notes | Senior notes, interest at 6.125%, payable semi-annually, principal due November 2023 |  |  |
Components of long-term debt |  |  |
Debt instrument interest rate stated, percentage | 6.125% |  | 6.125%
Senior notes | Senior subordinated notes, interest at 8.25%, payable semi-annually, repaid in December 2015 |  |  |
Components of long-term debt |  |  |
Debt instrument interest rate stated, percentage | 8.25% | 8.25% |
Asset-based revolving credit facility | Asset-based revolving credit facility, interest at LIBOR plus a margin of 1.25% to 1.75% or Base Rate plus a margin of 0.25% to 0.75%, amended in April 2016 | LIBOR | Minimum |  |  |
Components of long-term debt |  |  |
Applicable interest margin rate on the credit facility | 1.25% |  |
Asset-based revolving credit facility | Asset-based revolving credit facility, interest at LIBOR plus a margin of 1.25% to 1.75% or Base Rate plus a margin of 0.25% to 0.75%, amended in April 2016 | LIBOR | Maximum |  |  |
Components of long-term debt |  |  |
Applicable interest margin rate on the credit facility | 1.75% |  |
Asset-based revolving credit facility | Asset-based revolving credit facility, interest at LIBOR plus a margin of 1.25% to 1.75% or Base Rate plus a margin of 0.25% to 0.75%, amended in April 2016 | Base Rate | Minimum |  |  |
Components of long-term debt |  |  |
Applicable interest margin rate on the credit facility | 0.25% |  |
Asset-based revolving credit facility | Asset-based revolving credit facility, interest at LIBOR plus a margin of 1.25% to 1.75% or Base Rate plus a margin of 0.25% to 0.75%, amended in April 2016 | Base Rate | Maximum |  |  |
Components of long-term debt |  |  |
Applicable interest margin rate on the credit facility | 0.75% |  |
Asset-based revolving credit facility | Asset-based revolving credit facility, interest at LIBOR plus a margin of 1.25% to 1.50% or Base Rate plus a margin of 0.25% to 0.50%, final maturity April 2021 | LIBOR | Minimum |  |  |
Components of long-term debt |  |  |
Applicable interest margin rate on the credit facility | 1.25% |  |
Asset-based revolving credit facility | Asset-based revolving credit facility, interest at LIBOR plus a margin of 1.25% to 1.50% or Base Rate plus a margin of 0.25% to 0.50%, final maturity April 2021 | LIBOR | Maximum |  |  |
Components of long-term debt |  |  |
Applicable interest margin rate on the credit facility | 1.50% |  |
Asset-based revolving credit facility | Asset-based revolving credit facility, interest at LIBOR plus a margin of 1.25% to 1.50% or Base Rate plus a margin of 0.25% to 0.50%, final maturity April 2021 | Base Rate | Minimum |  |  |
Components of long-term debt |  |  |
Applicable interest margin rate on the credit facility | 0.25% |  |
Asset-based revolving credit facility | Asset-based revolving credit facility, interest at LIBOR plus a margin of 1.25% to 1.50% or Base Rate plus a margin of 0.25% to 0.50%, final maturity April 2021 | Base Rate | Maximum |  |  |
Components of long-term debt |  |  |
Applicable interest margin rate on the credit facility | 0.50% |  |

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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + 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 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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