Long-term Debt	6 Months Ended
Jun. 30, 2011
Long-term Debt [Abstract]
Long-term Debt	4. Long-term Debt As of June 30, 2011, our total long-term indebtedness was $316.2 million, consisting of $300 million of our 8.625% Senior Notes due 2018 (the “8.625% Senior Notes”), and $16.2 million borrowed under our revolving credit facility. On September 23, 2010, we issued $300 million of 8.625% Senior Notes that mature in 2018. Interest is payable semi-annually in arrears on April 15 and October 15 of each year. Net proceeds of $295.5 million were used to repurchase $189.5 million of our $200 million outstanding 7.125% Senior Notes due 2013 (the “7.125% Senior Notes”) pursuant to a tender offer and consent solicitation that also settled on September 23, 2010. Our total cost to repurchase those notes was $9.5 million, including the tender offer premium of $7.6 million and $1.9 million of unamortized issuance costs. We called for redemption on October 25, 2010 the remaining $10.5 million of 7.125% Senior Notes outstanding, at a redemption price of 103.563% of their face amount plus accrued interest. Mr. Al A. Gonsoulin, our Chairman and CEO and the Matzke Family Trust, of which Richard Matzke, one of our directors, is trustee, purchased $2 million and $1 million of the 8.625% Senior Notes, respectively. The 8.625% Senior Notes are unconditionally guaranteed on a senior basis by our domestic subsidiaries, and are general, unsecured obligations of ours and the subsidiary guarantors. We have the option to redeem some or all of the notes at any time on or after October 15, 2014 at specified redemption prices, and prior to that time pursuant to certain make-whole provisions. The 8.625% Senior Notes contain restrictive covenants, including limitations on incurring indebtedness, creating liens, selling assets and entering into certain transactions with affiliates. The covenants limit our ability to pay cash dividends on common stock, repurchase or redeem common or preferred equity, prepay subordinated debt and make certain investments. There are no restrictions on dividends from a subsidiary to the parent company, nor any restrictions on contributions from the parent company to a subsidiary. Upon the occurrence of a “Change in Control” (as defined in the indenture governing the notes), each holder of the notes will have the right to require us purchase that holder’s notes for a cash price equal to 101% of their principal amount. Upon the occurrence of an “Event of Default” (as defined in the indenture), the trustee or the holders of the notes may declare all of the outstanding notes to be due and payable immediately. We were in compliance with the covenants applicable to the notes as of June 30, 2011. In connection with the issuance of the 8.625% Senior Notes, we entered into a registration rights agreement, pursuant to which we agreed to offer to exchange the notes for a new issue of substantially identical notes registered under the Securities Act of 1933, as amended (the “Securities Act”). Pursuant to the registration rights agreement, the unregistered 8.625% Senior Notes that were tendered were exchanged January 19, 2011 for substantially identical notes registered under the Securities Act. Our senior secured revolving credit facility permits borrowings up to $75 million, contains a borrowing base of 80% of eligible receivables (as defined in the credit agreement) and 50% of the value of parts and is due September 1, 2012. The interest rate is the prime rate plus 100 basis points. We may prepay the revolving credit facility at any time in whole or in part without premium or penalty. All obligations under the revolving credit facility are secured by a perfected first priority security interest in all of our eligible receivables and parts, and are guaranteed by certain of our domestic subsidiaries. As of June 30, 2011, we had $16.2 million in borrowings under the facility. As of December 31, 2010, we had $31.1 million in borrowings under the facility. We maintain a separate letter of credit facility that had $5.5 million in letters of credit outstanding as of June 30, 2011 and December 31, 2010. During the six months ended June 30, 2011 and 2010, the weighted average effective interest rate on amounts borrowed under the revolving credit facility was 4.25%. We reviewed interest expense for the quarters ended June 30, 2011 and 2010 that could be capitalized for certain projects and any such amounts were immaterial. The revolving credit facility includes financial covenants related to working capital, funded debt to consolidated net worth, and consolidated net worth, and other covenants including restrictions on additional debt, liens and a change of control. Events of default include a change of control, a default in any other material credit agreement, including the 8.625% Senior Notes, and customary events of default. As of June 30, 2011, we were in compliance with all of the covenants under the revolving credit facility. Our $300 million outstanding 8.625% Senior Notes bear interest at a fixed rate of 8.625% and therefore changes in market interest rates do not affect our interest payment obligations on the notes. The fair market value of our 8.625% Senior Notes will vary as changes occur to general market interest rates, the remaining maturity of the notes, and our credit worthiness. At June 30, 2011, the market value of the notes was approximately $296.3 million, based on quoted market indications.

4. Long-term Debt

As of June 30, 2011, our total long-term indebtedness was $316.2 million, consisting of $300 million of our 8.625% Senior Notes due 2018 (the “8.625% Senior Notes”), and $16.2 million borrowed under our revolving credit facility.

On September 23, 2010, we issued $300 million of 8.625% Senior Notes that mature in 2018. Interest is payable semi-annually in arrears on April 15 and October 15 of each year. Net proceeds of $295.5 million were used to repurchase $189.5 million of our $200 million outstanding 7.125% Senior Notes due 2013 (the “7.125% Senior Notes”) pursuant to a tender offer and consent solicitation that also settled on September 23, 2010. Our total cost to repurchase those notes was $9.5 million, including the tender offer premium of $7.6 million and $1.9 million of unamortized issuance costs. We called for redemption on October 25, 2010 the remaining $10.5 million of 7.125% Senior Notes outstanding, at a redemption price of 103.563% of their face amount plus accrued interest.

Mr. Al A. Gonsoulin, our Chairman and CEO and the Matzke Family Trust, of which Richard Matzke, one of our directors, is trustee, purchased $2 million and $1 million of the 8.625% Senior Notes, respectively.

The 8.625% Senior Notes are unconditionally guaranteed on a senior basis by our domestic subsidiaries, and are general, unsecured obligations of ours and the subsidiary guarantors. We have the option to redeem some or all of the notes at any time on or after October 15, 2014 at specified redemption prices, and prior to that time pursuant to certain make-whole provisions.

The 8.625% Senior Notes contain restrictive covenants, including limitations on incurring indebtedness, creating liens, selling assets and entering into certain transactions with affiliates. The covenants limit our ability to pay cash dividends on common stock, repurchase or redeem common or preferred equity, prepay subordinated debt and make certain investments. There are no restrictions on dividends from a subsidiary to the parent company, nor any restrictions on contributions from the parent company to a subsidiary. Upon the occurrence of a “Change in Control” (as defined in the indenture governing the notes), each holder of the notes will have the right to require us purchase that holder’s notes for a cash price equal to 101% of their principal amount. Upon the occurrence of an “Event of Default” (as defined in the indenture), the trustee or the holders of the notes may declare all of the outstanding notes to be due and payable immediately. We were in compliance with the covenants applicable to the notes as of June 30, 2011.

In connection with the issuance of the 8.625% Senior Notes, we entered into a registration rights agreement, pursuant to which we agreed to offer to exchange the notes for a new issue of substantially identical notes registered under the Securities Act of 1933, as amended (the “Securities Act”). Pursuant to the registration rights agreement, the unregistered 8.625% Senior Notes that were tendered were exchanged January 19, 2011 for substantially identical notes registered under the Securities Act.

Our senior secured revolving credit facility permits borrowings up to $75 million, contains a borrowing base of 80% of eligible receivables (as defined in the credit agreement) and 50% of the value of parts and is due September 1, 2012. The interest rate is the prime rate plus 100 basis points. We may prepay the revolving credit facility at any time in whole or in part without premium or penalty. All obligations under the revolving credit facility are secured by a perfected first priority security interest in all of our eligible receivables and parts, and are guaranteed by certain of our domestic subsidiaries.

As of June 30, 2011, we had $16.2 million in borrowings under the facility. As of December 31, 2010, we had $31.1 million in borrowings under the facility. We maintain a separate letter of credit facility that had $5.5 million in letters of credit outstanding as of June 30, 2011 and December 31, 2010. During the six months ended June 30, 2011 and 2010, the weighted average effective interest rate on amounts borrowed under the revolving credit facility was 4.25%. We reviewed interest expense for the quarters ended June 30, 2011 and 2010 that could be capitalized for certain projects and any such amounts were immaterial.

The revolving credit facility includes financial covenants related to working capital, funded debt to consolidated net worth, and consolidated net worth, and other covenants including restrictions on additional debt, liens and a change of control. Events of default include a change of control, a default in any other material credit agreement, including the 8.625% Senior Notes, and customary events of default. As of June 30, 2011, we were in compliance with all of the covenants under the revolving credit facility.

Our $300 million outstanding 8.625% Senior Notes bear interest at a fixed rate of 8.625% and therefore changes in market interest rates do not affect our interest payment obligations on the notes. The fair market value of our 8.625% Senior Notes will vary as changes occur to general market interest rates, the remaining maturity of the notes, and our credit worthiness. At June 30, 2011, the market value of the notes was approximately $296.3 million, based on quoted market indications.