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Long-Term Debt - Summary of Components of Long-Term Debt and Capital Leases by Debt Instrument (Detail) - USD ($) $ in Thousands | Jun. 30, 2016 | Dec. 31, 2015
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Debt Instrument [Line Items] |  |
Principal amount of long-term debt and capital leases | $ 519,031 | $ 525,019
Less-unamortized discount and debt issuance costs | 15,816 | 17,586
Long-term debt and capital lease | 503,215 | 507,433
Less-current maturities of long-term debt | 1,411 | 1,448
Non current portion of long term debt and capital lease obligation | 501,804 | 505,985
Senior Secured Asset Based Revolving Credit Facility, Due 2020 [Member] |  |
Debt Instrument [Line Items] |  |
Long-term debt and capital lease | 55,800 | 57,422
Less-unamortized discount and debt issuance costs | 4,976 | 5,593
Revenue Bonds Series 2014 Due December 2044 [Member] |  |
Debt Instrument [Line Items] |  |
Long-term debt and capital lease | 25,000 | 25,000
Less-unamortized discount and debt issuance costs | 1,314 | 1,407
Revenue Bonds Series 2014R-2, Due December 2044 [Member] |  |
Debt Instrument [Line Items] |  |
Long-term debt and capital lease | 15,000 |
Less-unamortized discount and debt issuance costs | 602 |
Revenue Bonds Series 2005R-2, Due January 2025 [Member] |  |
Debt Instrument [Line Items] |  |
Long-term debt and capital lease | 21,400 | 21,400
Less-unamortized discount and debt issuance costs | 534 | 566
Revenue Bonds Series 2015 Due August 2035 [Member] |  |
Debt Instrument [Line Items] |  |
Long-term debt and capital lease | 15,000 | 15,000
Less-unamortized discount and debt issuance costs | 795 | 830
Long-Term Revenue Bonds Series 2013 Due April 2036 [Member] |  |
Debt Instrument [Line Items] |  |
Long-term debt and capital lease | 16,000 | 16,000
Less-unamortized discount and debt issuance costs | 620 | 636
Revenue Bonds Series 2013 Due April 2029 [Member] |  |
Debt Instrument [Line Items] |  |
Long-term debt and capital lease | 11,000 | 11,000
Less-unamortized discount and debt issuance costs | 627 | 690
Revenue Bonds Series, 2005R-1, Due January 2025 [Member] |  |
Debt Instrument [Line Items] |  |
Long-term debt and capital lease | 3,600 | 3,600
Capital Lease Obligations [Member] |  |
Debt Instrument [Line Items] |  |
Long-term debt and capital lease | 4,508 | 4,130
Notes Payable [Member] |  |
Debt Instrument [Line Items] |  |
Long-term debt and capital lease | 1,153 | 1,167
Senior Subordinated Notes Due 2019 Notes [Member] |  |
Debt Instrument [Line Items] |  |
Long-term debt and capital lease | 350,570 | 370,300
Less-unamortized discount and debt issuance costs | $ 6,315 | $ 7,829

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- Definition Amount of long-term debt and capital lease obligations before any unamortized discount, unamortized premium or unamortized debt issuance costs. + References No definition available. + Details
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- Definition Sum of the carrying values as of the balance sheet date of all debt, including all short-term borrowings, long-term debt, and capital lease obligations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.13,16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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- Definition Amount of unamortized debt discount (premium) and debt issuance costs. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28555-108399 + Details
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