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Acquisition of Gordon Trucking, Inc. Total Purchase Price Consideration (Details) - USD ($) shares in Thousands, $ in Thousands | 12 Months Ended |  |  |
--- | --- | --- | --- | ---
Dec. 31, 2013 | Nov. 01, 2016 | Nov. 01, 2015 | Nov. 11, 2013
Business Acquisition [Line Items] |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  | $ 175,000 | $ 200,000 | $ 250,000
Payments to Acquire Businesses, Gross | $ 115,900 |  |  |
Payments to Acquire Intangible Assets | 15,000 |  |  |
Cash Acquired from Acquisition | (20,000) |  |  |
Business Combination, Acquisition Related Costs | $ 148,000 |  |  |
Common stock issued (par value of $0.01) | 41,100 |  |  |
Total acquisition purchase price | $ 300,000 |  |  |
Gordon Trucking Company, Inc [Member] |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Total consideration transferred to acquire a business | 172,000 |  |  |
Total acquisition purchase price | $ 285,000 |  |  |

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