Subsequent Events (Details) - USD ($)	Mar. 14, 2018	Mar. 01, 2018	Jan. 30, 2018	Dec. 15, 2017	Sep. 15, 2017	May 02, 2017	Mar. 13, 2018	Jul. 21, 2017	Sep. 24, 2015	Jul. 09, 2014
Subsequent Event
Subsequent Event [Line Items]
Proceeds from issue and sale of preferred stock and issued warrants		$ 17,500,000
Revolving credit facility
Subsequent Event [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity									$ 400,000,000	$ 350,000,000
ABL Facility, Maturity July 2022 [Member] | Revolving credit facility | Subsequent Event
Subsequent Event [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity								$ 200,000,000.0
Debt Instrument, Face Amount								141,700,000
ABL Facility, Maturity July 2022 [Member] | Bridge Loan [Member] | Subsequent Event
Subsequent Event [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity								20,000,000.0
ABL Facility, Maturity July 2022 [Member] | Letter of Credit [Member] | Subsequent Event
Subsequent Event [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity								30,000,000.0
Term Loan Facility [Member] | ABL Facility, Maturity July 2022 [Member] | Subsequent Event
Subsequent Event [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity								56,800,000.0
Debt Instrument, Face Amount								56,800,000
Asset-Based Facility [Member] | ABL Facility, Maturity July 2022 [Member] | Subsequent Event
Subsequent Event [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	$ 60,000,000						$ 35,000,000	$ 35,000,000.0
Period To Obtain New Appraisal	60 days
Line Of Credit Facility, Decrease In Maximum Borrowing Capacity				$ 15,000,000.0
Minimum [Member] | Adjusted LIBOR [Member] | ABL Facility, Maturity July 2022 [Member] | Subsequent Event
Subsequent Event [Line Items]
Debt Instrument, Interest Rate, Stated Percentage								1.50%
Minimum [Member] | Base Rate | ABL Facility, Maturity July 2022 [Member] | Subsequent Event
Subsequent Event [Line Items]
Debt Instrument, Interest Rate, Stated Percentage								0.50%
Maximum [Member] | Adjusted LIBOR [Member] | ABL Facility, Maturity July 2022 [Member] | Subsequent Event
Subsequent Event [Line Items]
Debt Instrument, Interest Rate, Stated Percentage			2.25%
Maximum [Member] | Base Rate | ABL Facility, Maturity July 2022 [Member] | Subsequent Event
Subsequent Event [Line Items]
Debt Instrument, Interest Rate, Stated Percentage			1.25%
Unitrans [Member] | Ascent Global Logistics Holdings, Inc [Member] | Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Subsequent Event
Subsequent Event [Line Items]
Proceeds from Divestiture of Businesses					$ 88,500,000
Gain (Loss) on Disposition of Business					$ (35,400,000)
Series E-1 Preferred Stock [Member] | Subsequent Event
Subsequent Event [Line Items]
Shares at $0.01 Par Value at issuance (in shares)		54,750
Preferred Stock, Liquidation Preference Per Share		$ 1,000
Additional rate		8.50%
Preferred Stock, Dividend Rate, Additional Rate Upon Triggering Events		3.00%
Series E-1 Preferred Stock [Member] | LIBOR | Subsequent Event
Subsequent Event [Line Items]
Basis spread on variable rate		5.25%
E-1FirstTranche [Member] | Series E-1 Preferred Stock [Member] | Subsequent Event
Subsequent Event [Line Items]
Shares at $0.01 Par Value at issuance (in shares)		17,500
Price / Share		$ 1,000
E-1SecondTrance [Member] | Series E-1 Preferred Stock [Member] | Subsequent Event
Subsequent Event [Line Items]
Shares at $0.01 Par Value at issuance (in shares)		18,228
Price / Share		$ 960
E-1ThirdTranche [Member] | Series E-1 Preferred Stock [Member] | Subsequent Event
Subsequent Event [Line Items]
Shares at $0.01 Par Value at issuance (in shares)		19,022
Price / Share		$ 920
12-24 months | Series E-1 Preferred Stock [Member] | Subsequent Event
Subsequent Event [Line Items]
Redemption rights (as a percent)		103.50%
0-12 months | Series E-1 Preferred Stock [Member] | Subsequent Event
Subsequent Event [Line Items]
Redemption rights (as a percent)		106.50%
Elliott
Subsequent Event [Line Items]
Proceeds from issue and sale of preferred stock and issued warrants						$ 540,500,000
Elliott | Subsequent Event
Subsequent Event [Line Items]
Proceeds from issue and sale of preferred stock and issued warrants			$ 52,500,000