Related Party Transactions	9 Months Ended
Sep. 30, 2019
Related Party Transactions [Abstract]
Related party transactions	13. Related Party Transactions On March 1, 2018, the Company entered into the Series E-1 Preferred Stock Investment Agreement with Elliott, pursuant to which the Company agreed to issue and sell to Elliott from time to time an aggregate of up to 54,750 shares of a newly created class of preferred stock designated as Series E-1 Cumulative Redeemable Preferred Stock. On March 1, 2018, the parties held an initial closing pursuant to which the Company issued and sold to Elliott 17,500 shares of Series E-1 Preferred Stock for an aggregate purchase price of $17.5 million and paid Elliott $1.1 million of issuance costs. On April 24, 2018, the parties held an initial closing pursuant to which the Company issued and sold to Elliott 18,228 shares of Series E-1 Preferred Stock for an aggregate purchase price of $17.5 million. This agreement was terminated in connection with the closing of the rights offering described in the following paragraph. On November 8, 2018, the Company entered into a Standby Purchase Agreement with Elliott, pursuant to which Elliott agreed to backstop the Company’s rights offering to raise $450 million. Pursuant to the Standby Purchase Agreement, Elliott agreed to exercise their basic subscription rights in full. In addition, Elliott agreed to purchase from the Company, at the Subscription Price, all unsubscribed shares of common stock in the Rights Offering (the “Backstop Commitment”). The Company did not pay Elliott a fee for providing the Backstop Commitment, but agreed to reimburse Elliott for all documented out-of-pocket costs and expenses in connection with the rights offering, the Backstop Commitment, and the transactions contemplated thereby, including fees for legal counsel to Elliott. Elliott agreed to waive all preferred stock dividends accrued and unpaid after November 30, 2018 once the rights offering was consummated. On February 26, 2019, the Company closed the rights offering and Elliott purchased a total of 33,745,308 shares of the Company's common stock in the rights offering between its basic subscription rights and the backstop commitment, and following the closing of the rights offering beneficially owned approximately 90.4% of the Company's common stock. On February 26, 2019, the Company entered into a New Stockholders’ Agreement with Elliott. The Company's execution and delivery of the Stockholders’ Agreement was a condition to Elliott’s backstop commitment. Pursuant to the Stockholders’ Agreement, the Company granted Elliott the right to designate nominees to Company's board of directors and access to available financial information. On February 26, 2019, the Company entered into the A&R Registration Rights Agreement with Elliott and investment funds affiliated with HCI Equity Partners, which amended and restated the Registration Rights Agreement, dated as of May 2, 2017, between the Company and the parties thereto. The Company's execution and delivery of the A&R Registration Rights Agreement was a condition to Elliott’s backstop commitment. The A&R Registration Rights Agreement amended the Registration Rights Agreement to provide the Elliott Stockholders (as defined therein) and the HCI Stockholders (as defined therein) with unlimited Form S-1 registration rights in connection with Company securities owned by them. On February 28, 2019, the Company entered into the Term Loan Credit Facility with BMO Harris Bank, N.A. and Elliott which consists of an approximately $61.1 million term loan facility. The Company paid Elliott $0.9 million in issuance costs and fees during the nine months ended September 30, 2019. As of September 30, 2019, the Company owed Elliott $40.4 million under the Term Loan Credit Facility. See Note 4 for more information on the Term Loan Credit Facility. On August 2, 2019, the Company entered into a First Amendment to the Term Loan Credit Facility with BMO Harris Bank, N.A and Elliott. On September 17, 2019, the Company entered into a Second Amendment to the Term Loan Credit Facility with BMO Harris Bank, N.A and Elliott. See Note 4 for more information on the First and Second Amendments to the Term Loan Credit Facility. On August 2, 2019, the Company entered into the Fee Letter with Elliott. Pursuant to the Fee Letter, Elliott agreed to arrange for standby letters of credit (“Letters of Credit”) in an aggregate face amount of $20 million (the “Face Amount”) to support the Company's obligations under the ABL Credit Facility. See Note 4 for more information on the Fee Letter. On August 20, 2019, the Company entered into a First Amendment to the Fee Letter, pursuant to which the maximum face amount of the Letters of Credit (as defined in the Fee Letter Amendment) that may be used to support the Company's obligations under the ABL Credit Facility was increased from $20 million to $30 million. On September 20, 2019, the Company issued the Revolving Notes to entities affiliated with Elliot which allows the Company to borrow from time to time up to $20 million from Elliott on a revolving basis. See Note 4 for more information on the Revolving Notes. The Company's operating companies have contracts with certain purchased transportation providers that are considered related parties. The Company paid an aggregate of $5.3 million and $5.8 million to these purchased transportation providers during the three months ended September 30, 2019 and 2018, respectively. The Company paid an aggregate of $21.1 million and $19.0 million to these purchased transportation providers during the nine months ended September 30, 2019 and 2018, respectively. The Company has a number of facility leases with related parties and paid an aggregate of $0.3 million under these leases during the three months ended September 30, 2018. The Company paid an aggregate of $0.1 million and $1.0 million under these leases during the nine months ended September 30, 2019 and 2018, respectively. The Company owns 37.5% of Central Minnesota Logistics (“CML”) which operates as one of the Company's brokerage agents. The Company paid CML broker commissions of $0.8 million during each of the three months ended September 30, 2019 and 2018. The Company paid CML broker commissions of $2.5 million and $2.2 million during the nine months ended September 30, 2019 and 2018, respectively. The Company has a jet fuel purchase agreement with a related party and paid an aggregate of $0.3 million and $0.4 million during the three months ended September 30, 2019 and 2018, respectively. The Company paid an aggregate of $1.5 million and $1.6 million under this agreement during the nine months ended September 30, 2019 and 2018, respectively. The Company leases certain equipment through leasing companies owned by related parties and paid an aggregate of $0.1 million and $1.2 million during the three months ended September 30, 2019 and 2018, respectively. The Company paid an aggregate of $2.1 million and $2.7 million during the nine months ended September 30, 2019 and 2018, respectively. On December 13, 2018, the Company entered into an agreement with HCI to resume the advancement of reasonable fees and expenses of up to $7.1 million pursuant to the advisory agreement. In addition, the Company and HCI agreed to contribute $1 million each to resolve the previously mentioned Securities Litigation Proceedings described in Note 11. The Company reserves all rights to seek reimbursement for any fees or expense advanced to HCI, while HCI reserves all rights to seek indemnification for amounts above the $7.1 million and the $1 million that HCI will contribute to resolve the Securities Litigation Proceedings. The Company paid HCI $0.5 million and $4.0 million under this agreement during the three and nine months ended September 30, 2019, respectively. On December 27, 2018, the Company filed a registration statement on Form S-1 with the SEC for the offer and sale of up to 312,065 shares of its common stock held by HCI and its affiliates. HCI has completed the sale of all the shares covered by the registration statement in open-market transactions to unaffiliated purchasers. The Company did not receive any cash proceeds from the offer and sale of the shares of common stock sold by HCI.

13. Related Party Transactions

On March 1, 2018, the Company entered into the Series E-1 Preferred Stock Investment Agreement with Elliott, pursuant to which the Company agreed to issue and sell to Elliott from time to time an aggregate of up to 54,750 shares of a newly created class of preferred stock designated as Series E-1 Cumulative Redeemable Preferred Stock. On March 1, 2018, the parties held an initial closing pursuant to which the Company issued and sold to Elliott 17,500 shares of Series E-1 Preferred Stock for an aggregate purchase price of $17.5 million and paid Elliott $1.1 million of issuance costs. On April 24, 2018, the parties held an initial closing pursuant to which the Company issued and sold to Elliott 18,228 shares of Series E-1 Preferred Stock for an aggregate purchase price of $17.5 million. This agreement was terminated in connection with the closing of the rights offering described in the following paragraph.

On November 8, 2018, the Company entered into a Standby Purchase Agreement with Elliott, pursuant to which Elliott agreed to backstop the Company’s rights offering to raise $450 million. Pursuant to the Standby Purchase Agreement, Elliott agreed to exercise their basic subscription rights in full. In addition, Elliott agreed to purchase from the Company, at the Subscription Price, all unsubscribed shares of common stock in the Rights Offering (the “Backstop Commitment”). The Company did not pay Elliott a fee for providing the Backstop Commitment, but agreed to reimburse Elliott for all documented out-of-pocket costs and expenses in connection with the rights offering, the Backstop Commitment, and the transactions contemplated thereby, including fees for legal counsel to Elliott. Elliott agreed to waive all preferred stock dividends accrued and unpaid after November 30, 2018 once the rights offering was consummated. On February 26, 2019, the Company closed the rights offering and Elliott purchased a total of 33,745,308 shares of the Company's common stock in the rights offering between its basic subscription rights and the backstop commitment, and following the closing of the rights offering beneficially owned approximately 90.4% of the Company's common stock.

On February 26, 2019, the Company entered into a New Stockholders’ Agreement with Elliott. The Company's execution and delivery of the Stockholders’ Agreement was a condition to Elliott’s backstop commitment. Pursuant to the Stockholders’ Agreement, the Company granted Elliott the right to designate nominees to Company's board of directors and access to available financial information.

On February 26, 2019, the Company entered into the A&R Registration Rights Agreement with Elliott and investment funds affiliated with HCI Equity Partners, which amended and restated the Registration Rights Agreement, dated as of May 2, 2017, between the Company and the parties thereto. The Company's execution and delivery of the A&R Registration Rights Agreement was a condition to Elliott’s backstop commitment. The A&R Registration Rights Agreement amended the Registration Rights Agreement to provide the Elliott Stockholders (as defined therein) and the HCI Stockholders (as defined therein) with unlimited Form S-1 registration rights in connection with Company securities owned by them.

On February 28, 2019, the Company entered into the Term Loan Credit Facility with BMO Harris Bank, N.A. and Elliott which consists of an approximately $61.1 million term loan facility. The Company paid Elliott $0.9 million in issuance costs and fees during the nine months ended September 30, 2019. As of September 30, 2019, the Company owed Elliott $40.4 million under the Term Loan Credit Facility. See Note 4 for more information on the Term Loan Credit Facility. On August 2, 2019, the Company entered into a First Amendment to the Term Loan Credit Facility with BMO Harris Bank, N.A and Elliott. On September 17, 2019, the Company entered into a Second Amendment to the Term Loan Credit Facility with BMO Harris Bank, N.A and Elliott. See Note 4 for more information on the First and Second Amendments to the Term Loan Credit Facility.

On August 2, 2019, the Company entered into the Fee Letter with Elliott. Pursuant to the Fee Letter, Elliott agreed to arrange for standby letters of credit (“Letters of Credit”) in an aggregate face amount of $20 million (the “Face Amount”) to support the Company's obligations under the ABL Credit Facility. See Note 4 for more information on the Fee Letter. On August 20, 2019, the Company entered into a First Amendment to the Fee Letter, pursuant to which the maximum face amount of the Letters of Credit (as defined in the Fee Letter Amendment) that may be used to support the Company's obligations under the ABL Credit Facility was increased from $20 million to $30 million.

On September 20, 2019, the Company issued the Revolving Notes to entities affiliated with Elliot which allows the Company to borrow from time to time up to $20 million from Elliott on a revolving basis. See Note 4 for more information on the Revolving Notes.

The Company's operating companies have contracts with certain purchased transportation providers that are considered related parties. The Company paid an aggregate of $5.3 million and $5.8 million to these purchased transportation providers during the three months ended September 30, 2019 and 2018, respectively. The Company paid an aggregate of $21.1 million and $19.0 million to these purchased transportation providers during the nine months ended September 30, 2019 and 2018, respectively.

The Company has a number of facility leases with related parties and paid an aggregate of $0.3 million under these leases during the three months ended September 30, 2018. The Company paid an aggregate of $0.1 million and $1.0 million under these leases during the nine months ended September 30, 2019 and 2018, respectively.

The Company owns 37.5% of Central Minnesota Logistics (“CML”) which operates as one of the Company's brokerage agents. The Company paid CML broker commissions of $0.8 million during each of the three months ended September 30, 2019 and 2018. The Company paid CML broker commissions of $2.5 million and $2.2 million during the nine months ended September 30, 2019 and 2018, respectively.

The Company has a jet fuel purchase agreement with a related party and paid an aggregate of $0.3 million and $0.4 million during the three months ended September 30, 2019 and 2018, respectively. The Company paid an aggregate of $1.5 million and $1.6 million under this agreement during the nine months ended September 30, 2019 and 2018, respectively.

The Company leases certain equipment through leasing companies owned by related parties and paid an aggregate of $0.1 million and $1.2 million during the three months ended September 30, 2019 and 2018, respectively. The Company paid an aggregate of $2.1 million and $2.7 million during the nine months ended September 30, 2019 and 2018, respectively.

On December 13, 2018, the Company entered into an agreement with HCI to resume the advancement of reasonable fees and expenses of up to $7.1 million pursuant to the advisory agreement. In addition, the Company and HCI agreed to contribute $1 million each to resolve the previously mentioned Securities Litigation Proceedings described in Note 11. The Company reserves all rights to seek reimbursement for any fees or expense advanced to HCI, while HCI reserves all rights to seek indemnification for amounts above the $7.1 million and the $1 million that HCI will contribute to resolve the Securities Litigation Proceedings. The Company paid HCI $0.5 million and $4.0 million under this agreement during the three and nine months ended September 30, 2019, respectively.

On December 27, 2018, the Company filed a registration statement on Form S-1 with the SEC for the offer and sale of up to 312,065 shares of its common stock held by HCI and its affiliates. HCI has completed the sale of all the shares covered by the registration statement in open-market transactions to unaffiliated purchasers. The Company did not receive any cash proceeds from the offer and sale of the shares of common stock sold by HCI.