Quarterly report pursuant to Section 13 or 15(d)

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

v2.4.0.6
Parent, Guarantor, Non-Guarantor Unaudited Consolidating Condensed Financial Statements - Consolidating Condensed Balance Sheet (Detail) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2013
Dec. 31, 2012
Mar. 31, 2012
Dec. 31, 2011
Current assets:        
Cash and cash equivalents $ 83,687 $ 87,886 $ 68,996 $ 97,869
Accounts and notes receivable, net 187,632 168,562    
Rig materials and supplies 29,388 28,860    
Deferred costs 3,775 1,089    
Deferred income taxes 10,406 8,742    
Other tax assets 37,810 33,524    
Assets held for sale 11,526 11,550    
Other current assets 12,689 12,821    
Total current assets 376,913 353,034    
Property, plant and equipment, net 784,795 786,158    
Other noncurrent assets 18,483 21,246    
Total assets 1,280,089 1,255,733    
Current liabilities:        
Current portion of long-term debt 10,000 10,000    
Accounts payable and accrued liabilities 156,650 137,746    
Accrued income taxes 5,414 4,120    
Total current liabilities 172,064 151,866    
Long-term debt 466,449 469,205    
Other long-term liabilities 22,756 23,182    
Long-term deferred tax liability 25,507 20,847    
Contingencies          
Stockholders' equity:        
Common stock 19,902 19,818    
Capital in excess of par value 648,241 646,217    
Retained earnings (accumulated deficit) (74,039) (74,631)    
Total controlling interest stockholders' equity 594,104 591,404    
Noncontrolling interest (791) (771)    
Total Equity 593,313 590,633    
Total liabilities and stockholders' equity 1,280,089 1,255,733    
Parent [Member]
       
Current assets:        
Cash and cash equivalents 43,492 42,251 34,861 55,670
Accounts and notes receivable, net 289,982 289,957    
Other tax assets 49,294 46,249    
Total current assets 382,768 378,457    
Property, plant and equipment, net 60 60    
Investment in subsidiaries and intercompany advances 778,610 780,878    
Other noncurrent assets 51,717 43,569    
Total assets 1,213,155 1,202,964    
Current liabilities:        
Current portion of long-term debt 10,000 10,000    
Accounts payable and accrued liabilities 76,716 65,839    
Accrued income taxes (631)      
Total current liabilities 86,085 75,839    
Long-term debt 466,449 469,205    
Other long-term liabilities 3,933 3,933    
Intercompany payables 62,584 62,583    
Contingencies         
Stockholders' equity:        
Common stock 19,902 19,818    
Capital in excess of par value 648,241 646,217    
Retained earnings (accumulated deficit) (74,039) (74,631)    
Total controlling interest stockholders' equity 594,104 591,404    
Total Equity 594,104 591,404    
Total liabilities and stockholders' equity 1,213,155 1,202,964    
Guarantor [Member]
       
Current assets:        
Cash and cash equivalents 5,921 11,023 948 4,212
Accounts and notes receivable, net 114,738 98,747    
Rig materials and supplies 3,101 2,834    
Deferred costs 87      
Deferred income taxes 8,939 7,615    
Other tax assets (32,651) (31,136)    
Other current assets 6,974 8,675    
Total current assets 107,109 97,758    
Property, plant and equipment, net 550,263 548,794    
Investment in subsidiaries and intercompany advances (226,204) (233,388)    
Other noncurrent assets 54,886 59,541    
Total assets 486,054 472,705    
Current liabilities:        
Accounts payable and accrued liabilities 97,718 93,243    
Accrued income taxes 1,754 612    
Total current liabilities 99,472 93,855    
Other long-term liabilities 5,436 6,129    
Long-term deferred tax liability 36,458 36,894    
Intercompany payables 43,656 43,657    
Contingencies         
Stockholders' equity:        
Common stock 18,049 18,049    
Capital in excess of par value 733,115 733,112    
Retained earnings (accumulated deficit) (450,132) (458,991)    
Total controlling interest stockholders' equity 301,032 292,170    
Total Equity 301,032 292,170    
Total liabilities and stockholders' equity 486,054 472,705    
Non-Guarantor [Member]
       
Current assets:        
Cash and cash equivalents 34,274 34,612 33,187 37,987
Accounts and notes receivable, net 297,628 292,644    
Rig materials and supplies 26,287 26,026    
Deferred costs 3,688 1,089    
Deferred income taxes 1,467 1,127    
Other tax assets 21,167 18,411    
Assets held for sale 11,526 11,550    
Other current assets 5,715 4,146    
Total current assets 401,752 389,605    
Property, plant and equipment, net 234,472 237,304    
Investment in subsidiaries and intercompany advances 1,494,006 1,467,429    
Other noncurrent assets 11,778 13,431    
Total assets 2,142,008 2,107,769    
Current liabilities:        
Accounts payable and accrued liabilities 211,324 205,864    
Accrued income taxes 4,291 3,508    
Total current liabilities 215,615 209,372    
Other long-term liabilities 13,387 13,120    
Long-term deferred tax liability (10,951) (16,047)    
Intercompany payables 247,656 216,320    
Contingencies         
Stockholders' equity:        
Common stock 43,003 43,003    
Capital in excess of par value 1,455,243 1,455,246    
Retained earnings (accumulated deficit) 178,846 187,526    
Total controlling interest stockholders' equity 1,677,092 1,685,775    
Noncontrolling interest (791) (771)    
Total Equity 1,676,301 1,685,004    
Total liabilities and stockholders' equity 2,142,008 2,107,769    
Eliminations [Member]
       
Current assets:        
Accounts and notes receivable, net (514,716) (512,786)    
Total current assets (514,716) (512,786)    
Investment in subsidiaries and intercompany advances (2,046,412) (2,014,919)    
Total assets (2,561,128) (2,527,705)    
Current liabilities:        
Accounts payable and accrued liabilities (229,108) (227,200)    
Total current liabilities (229,108) (227,200)    
Intercompany payables (353,896) (322,560)    
Contingencies         
Stockholders' equity:        
Common stock (61,502) (61,052)    
Capital in excess of par value (2,188,358) (2,188,358)    
Retained earnings (accumulated deficit) 271,286 271,465    
Total controlling interest stockholders' equity (1,978,124) (1,977,945)    
Total Equity (1,978,124) (1,977,945)    
Total liabilities and stockholders' equity $ (2,561,128) $ (2,527,705)