Quarterly report pursuant to Section 13 or 15(d)

Acquisitions of ITS Acquisitions ITS - Impact to December 31, 2013 Consolidated Balance Sheet (Details)

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Acquisitions of ITS Acquisitions ITS - Impact to December 31, 2013 Consolidated Balance Sheet (Details) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2014
Dec. 31, 2013
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]    
Accounts and notes receivable, net $ (264,803) $ (257,889)
Total current assets 445,366 519,283
Deferred income tax assets - noncurrent 8,015 9,940
Total assets 1,521,013 1,534,756
Long-term deferred tax liabilities (54,540) (38,767)
Total liabilities (862,411) (901,614)
Noncontrolling interest 3,633 1,446
Total liabilities and stockholders’ equity 1,521,013 1,534,756
ITS [Member]
    
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]    
Accounts and notes receivable, net   (1,859)
Total current assets   1,859
Property, plant and equipment   3,072
Deferred income tax assets - noncurrent   391
Total non-current assets   3,463
Total assets   1,604
Long-term deferred tax liabilities   (60)
Total non-current liabilities   (60)
Total liabilities   (60)
Noncontrolling interest   1,664
Total liabilities and stockholders’ equity   $ 1,604