Annual report pursuant to Section 13 and 15(d)

Parent, Guarantor, Non-Guarantor Unaudited Consolidating Financial Statements (Unaudited) - Consolidating Condensed Balance Sheet (Detail)

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Parent, Guarantor, Non-Guarantor Unaudited Consolidating Financial Statements (Unaudited) - Consolidating Condensed Balance Sheet (Detail) - USD ($)
$ in Thousands
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Current assets:        
Cash and cash equivalents $ 48,602 $ 141,549    
Restricted cash 10,389 0    
Accounts and notes receivable, net 136,437 122,511    
Rig materials and supplies 36,245 31,415    
Deferred costs 4,353 3,145    
Other tax assets 2,949 4,889    
Other current assets 27,929 14,327    
Total current assets 266,904 317,836    
Property, plant and equipment, net 534,371 625,771    
Goodwill 0 6,708    
Intangible assets, net 4,821 7,128    
Rig materials and supplies 12,971 18,788    
Deferred income taxes 2,143 1,284    
Investment in subsidiaries and intercompany advances 0 0    
Other non-current assets 7,204 12,764    
Total assets 828,414 990,279    
Current Liabilities:        
Debtor in possession financing 10,000 0    
Accounts payable 39,678 41,523    
Accrued liabilities 35,385 57,723    
Accrued income taxes 3,385 4,430    
Total current liabilities 88,448 103,676    
Long-term debt, net of unamortized debt issuance costs of $7,029 at December 31, 2017 0 577,971    
Other long-term liabilities 11,544 12,433    
Long-term deferred tax liability 510 78    
Intercompany payables 0 0    
Total liabilities not subject to compromise 100,502 694,158    
Liabilities subject to compromise 600,996 0    
Total stockholder's equity 126,916 296,121 $ 339,135 $ 568,512
Total liabilities and stockholders’ equity 828,414 990,279    
Reportable Legal Entities | Parent        
Current assets:        
Cash and cash equivalents 5,905 75,342    
Restricted cash 10,389      
Accounts and notes receivable, net 0 0    
Rig materials and supplies 0 0    
Deferred costs 0 0    
Other tax assets 0 0    
Other current assets 8,088 0    
Total current assets 24,382 75,342    
Property, plant and equipment, net (19) (19)    
Goodwill   0    
Intangible assets, net 0 0    
Rig materials and supplies 0 0    
Deferred income taxes 1,918 15,144    
Investment in subsidiaries and intercompany advances 2,871,807 2,955,050    
Other non-current assets (277,183) (276,375)    
Total assets 2,620,905 2,769,142    
Current Liabilities:        
Debtor in possession financing 10,000      
Accounts payable (200,977) (137,047)    
Accrued liabilities 69,961 85,987    
Accrued income taxes 88,494 76,883    
Total current liabilities (32,522) 25,823    
Long-term debt, net of unamortized debt issuance costs of $7,029 at December 31, 2017   577,971    
Other long-term liabilities 2,867 2,867    
Long-term deferred tax liability 0 0    
Intercompany payables 1,918,709 1,865,810    
Total liabilities not subject to compromise 1,889,054      
Liabilities subject to compromise 600,996      
Total stockholder's equity 130,855 296,671    
Total liabilities and stockholders’ equity 2,620,905 2,769,142    
Reportable Legal Entities | Guarantor        
Current assets:        
Cash and cash equivalents 9,321 20,655    
Restricted cash 0      
Accounts and notes receivable, net 48,598 32,338    
Rig materials and supplies 1,650 (3,025)    
Deferred costs 975 17    
Other tax assets 0 0    
Other current assets 10,241 6,345    
Total current assets 70,785 56,330    
Property, plant and equipment, net 369,529 429,999    
Goodwill   6,708    
Intangible assets, net 4,821 7,128    
Rig materials and supplies 7,036 7,256    
Deferred income taxes (14,806) (26,623)    
Investment in subsidiaries and intercompany advances 3,024,736 2,970,220    
Other non-current assets 257,204 257,121    
Total assets 3,719,305 3,708,139    
Current Liabilities:        
Debtor in possession financing 0      
Accounts payable 222,903 162,505    
Accrued liabilities 11,934 16,742    
Accrued income taxes (67,333) (56,870)    
Total current liabilities 167,504 122,377    
Long-term debt, net of unamortized debt issuance costs of $7,029 at December 31, 2017   0    
Other long-term liabilities 4,128 5,741    
Long-term deferred tax liability 0 0    
Intercompany payables 1,487,904 1,465,745    
Total liabilities not subject to compromise 1,659,536      
Liabilities subject to compromise 0      
Total stockholder's equity 2,059,769 2,114,276    
Total liabilities and stockholders’ equity 3,719,305 3,708,139    
Reportable Legal Entities | Non-Guarantor        
Current assets:        
Cash and cash equivalents 33,376 45,552    
Restricted cash 0      
Accounts and notes receivable, net 87,839 90,173    
Rig materials and supplies 34,002 34,440    
Deferred costs 3,378 3,128    
Other tax assets 2,949 4,889    
Other current assets 9,600 7,982    
Total current assets 171,144 186,164    
Property, plant and equipment, net 164,861 195,791    
Goodwill   0    
Intangible assets, net 0 0    
Rig materials and supplies 5,935 11,532    
Deferred income taxes 15,031 12,763    
Investment in subsidiaries and intercompany advances 4,264,747 3,956,747    
Other non-current assets 507,932 512,870    
Total assets 5,129,650 4,875,867    
Current Liabilities:        
Debtor in possession financing 0      
Accounts payable 511,770 510,083    
Accrued liabilities 76,947 78,452    
Accrued income taxes (17,776) (15,583)    
Total current liabilities 570,941 572,952    
Long-term debt, net of unamortized debt issuance costs of $7,029 at December 31, 2017   0    
Other long-term liabilities 4,549 3,825    
Long-term deferred tax liability 510 78    
Intercompany payables 2,719,884 2,430,339    
Total liabilities not subject to compromise 3,295,884      
Liabilities subject to compromise 0      
Total stockholder's equity 1,833,766 1,868,673    
Total liabilities and stockholders’ equity 5,129,650 4,875,867    
Eliminations        
Current assets:        
Cash and cash equivalents 0 0    
Restricted cash 0      
Accounts and notes receivable, net 0 0    
Rig materials and supplies 593 0    
Deferred costs 0 0    
Other tax assets 0 0    
Other current assets 0 0    
Total current assets 593 0    
Property, plant and equipment, net 0 0    
Goodwill   0    
Intangible assets, net 0 0    
Rig materials and supplies 0      
Deferred income taxes 0 0    
Investment in subsidiaries and intercompany advances (10,161,290) (9,882,017)    
Other non-current assets (480,749) (480,852)    
Total assets (10,641,446) (10,362,869)    
Current Liabilities:        
Debtor in possession financing 0      
Accounts payable (494,018) (494,018)    
Accrued liabilities (123,457) (123,458)    
Accrued income taxes 0 0    
Total current liabilities (617,475) (617,476)    
Long-term debt, net of unamortized debt issuance costs of $7,029 at December 31, 2017   0    
Other long-term liabilities 0 0    
Long-term deferred tax liability 0 0    
Intercompany payables (6,126,497) (5,761,894)    
Total liabilities not subject to compromise (6,743,972)      
Liabilities subject to compromise 0      
Total stockholder's equity (3,897,474) (3,983,499)    
Total liabilities and stockholders’ equity $ (10,641,446) $ (10,362,869)