Registration of securities issued in business combination transactions

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

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Acquisitions of ITS Acquisitions ITS - Impact to December 31, 2013 Consolidated Balance Sheet (Detail) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]      
Accounts and notes receivable, net $ (264,437) $ (257,889) $ (168,615)
Total current assets (465,132) (519,283) (342,131)
Property, plant and equipment   2,007,380 1,857,131
Deferred income tax assets - noncurrent 8,973 9,940 8,742
Total assets 1,500,368 1,534,756 1,255,733
Long-term deferred tax liabilities (41,026) (38,767) (20,847)
Noncontrolling interest 3,264 1,446 (771)
Total liabilities and stockholders' equity 1,500,368 1,534,756 1,255,733
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