Parent, Guarantor, Non-Guarantor Unaudited Consolidating Condensed Financial Statements - Consolidating Condensed Balance Sheet (Detail) - USD ($) $ in Thousands |
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
Dec. 31, 2013 |
Current assets: |
|
|
|
|
Cash and cash equivalents |
$ 119,691
|
$ 134,294
|
$ 108,456
|
$ 148,689
|
Accounts and notes receivable, net |
113,231
|
175,105
|
|
|
Rig materials and supplies |
32,354
|
34,937
|
|
|
Deferred costs |
1,436
|
1,367
|
|
|
Other tax assets |
6,475
|
5,192
|
|
|
Other current assets |
13,131
|
15,846
|
|
|
Total current assets |
286,318
|
366,741
|
|
|
Property, plant and equipment, net of accumulated depreciation of $1,320,644 in 2016 and $1,302,380 in 2015 (Note 5) |
693,439
|
805,841
|
|
|
Goodwill |
6,708
|
6,708
|
|
|
Intangible Assets, Net (Excluding Goodwill) |
9,928
|
13,377
|
|
|
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures |
0
|
0
|
|
|
Other noncurrent assets |
107,158
|
174,035
|
|
|
Assets |
1,103,551
|
1,366,702
|
|
|
Current liabilities: |
|
|
|
|
Accounts payable and accrued liabilities |
(98,841)
|
(129,703)
|
|
|
Accrued income taxes |
4,080
|
6,418
|
|
|
Total current liabilities |
102,921
|
136,121
|
|
|
Long-term debt, net of unamortized debt issuance costs of $8,674 at December 31, 2016 and $10,202 at December 31, 2015 |
576,326
|
574,798
|
|
|
Other long-term liabilities |
15,836
|
18,617
|
|
|
Long-term deferred tax liability |
69,333
|
68,654
|
|
|
Intercompany payables |
0
|
0
|
|
|
Liabilities |
764,416
|
798,190
|
|
|
Contingencies |
|
|
|
|
Stockholders’ equity: |
|
|
|
|
Common stock |
20,837
|
20,518
|
|
|
Capital in excess of par value |
675,194
|
669,120
|
|
|
Accumulated other comprehensive income |
(6,844)
|
(1,888)
|
|
|
Retained earnings (accumulated deficit) |
(350,052)
|
(119,238)
|
|
|
Total controlling interest stockholders' equity |
339,135
|
568,512
|
|
|
Noncontrolling interest |
0
|
0
|
|
|
Total Equity |
339,135
|
568,512
|
666,214
|
633,142
|
Total liabilities and stockholders’ equity |
1,103,551
|
1,366,702
|
|
|
Parent [Member] |
|
|
|
|
Current assets: |
|
|
|
|
Cash and cash equivalents |
65,000
|
73,985
|
36,728
|
88,697
|
Accounts and notes receivable, net |
0
|
0
|
|
|
Rig materials and supplies |
0
|
0
|
|
|
Deferred costs |
0
|
0
|
|
|
Other tax assets |
(50,296)
|
0
|
|
|
Other current assets |
0
|
0
|
|
|
Total current assets |
14,704
|
73,985
|
|
|
Property, plant and equipment, net of accumulated depreciation of $1,320,644 in 2016 and $1,302,380 in 2015 (Note 5) |
(19)
|
(19)
|
|
|
Goodwill |
0
|
|
|
|
Intangible Assets, Net (Excluding Goodwill) |
0
|
0
|
|
|
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures |
2,979,413
|
3,057,220
|
|
|
Other noncurrent assets |
(253,679)
|
(234,786)
|
|
|
Assets |
2,740,419
|
2,896,400
|
|
|
Current liabilities: |
|
|
|
|
Accounts payable and accrued liabilities |
10,080
|
(84,456)
|
|
|
Accrued income taxes |
0
|
9,900
|
|
|
Total current liabilities |
(10,080)
|
94,356
|
|
|
Long-term debt, net of unamortized debt issuance costs of $8,674 at December 31, 2016 and $10,202 at December 31, 2015 |
576,326
|
574,798
|
|
|
Other long-term liabilities |
2,867
|
2,868
|
|
|
Long-term deferred tax liability |
(28)
|
(29)
|
|
|
Intercompany payables |
1,828,317
|
1,656,968
|
|
|
Liabilities |
2,397,402
|
2,328,961
|
|
|
Stockholders’ equity: |
|
|
|
|
Total Equity |
343,017
|
567,439
|
|
|
Total liabilities and stockholders’ equity |
2,740,419
|
2,896,400
|
|
|
Guarantor [Member] |
|
|
|
|
Current assets: |
|
|
|
|
Cash and cash equivalents |
14,365
|
13,854
|
13,546
|
8,310
|
Accounts and notes receivable, net |
15,749
|
42,261
|
|
|
Rig materials and supplies |
(5,369)
|
(4,744)
|
|
|
Deferred costs |
16
|
0
|
|
|
Other tax assets |
35,733
|
457
|
|
|
Other current assets |
5,555
|
5,525
|
|
|
Total current assets |
66,049
|
57,353
|
|
|
Property, plant and equipment, net of accumulated depreciation of $1,320,644 in 2016 and $1,302,380 in 2015 (Note 5) |
469,927
|
543,346
|
|
|
Goodwill |
6,708
|
|
|
|
Intangible Assets, Net (Excluding Goodwill) |
9,434
|
11,740
|
|
|
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures |
2,932,375
|
2,770,501
|
|
|
Other noncurrent assets |
301,771
|
312,790
|
|
|
Assets |
3,786,264
|
3,702,438
|
|
|
Current liabilities: |
|
|
|
|
Accounts payable and accrued liabilities |
(149,210)
|
(56,382)
|
|
|
Accrued income taxes |
1,576
|
2,111
|
|
|
Total current liabilities |
150,786
|
58,493
|
|
|
Long-term debt, net of unamortized debt issuance costs of $8,674 at December 31, 2016 and $10,202 at December 31, 2015 |
0
|
0
|
|
|
Other long-term liabilities |
9,338
|
7,446
|
|
|
Long-term deferred tax liability |
73,039
|
69,679
|
|
|
Intercompany payables |
1,437,417
|
1,401,510
|
|
|
Liabilities |
1,670,580
|
1,537,128
|
|
|
Stockholders’ equity: |
|
|
|
|
Total Equity |
2,115,684
|
2,165,310
|
|
|
Total liabilities and stockholders’ equity |
3,786,264
|
3,702,438
|
|
|
Non-Guarantor [Member] |
|
|
|
|
Current assets: |
|
|
|
|
Cash and cash equivalents |
40,326
|
46,455
|
58,182
|
51,682
|
Accounts and notes receivable, net |
97,482
|
132,844
|
|
|
Rig materials and supplies |
37,723
|
39,681
|
|
|
Deferred costs |
1,420
|
1,367
|
|
|
Other tax assets |
21,038
|
4,735
|
|
|
Other current assets |
7,576
|
10,321
|
|
|
Total current assets |
205,565
|
235,403
|
|
|
Property, plant and equipment, net of accumulated depreciation of $1,320,644 in 2016 and $1,302,380 in 2015 (Note 5) |
223,531
|
262,514
|
|
|
Goodwill |
0
|
|
|
|
Intangible Assets, Net (Excluding Goodwill) |
494
|
1,637
|
|
|
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures |
3,676,402
|
3,319,702
|
|
|
Other noncurrent assets |
539,877
|
265,995
|
|
|
Assets |
4,645,869
|
4,085,251
|
|
|
Current liabilities: |
|
|
|
|
Accounts payable and accrued liabilities |
(577,188)
|
(295,439)
|
|
|
Accrued income taxes |
2,504
|
(5,593)
|
|
|
Total current liabilities |
579,692
|
289,846
|
|
|
Long-term debt, net of unamortized debt issuance costs of $8,674 at December 31, 2016 and $10,202 at December 31, 2015 |
0
|
0
|
|
|
Other long-term liabilities |
3,631
|
8,303
|
|
|
Long-term deferred tax liability |
(3,678)
|
(996)
|
|
|
Intercompany payables |
2,161,864
|
1,864,671
|
|
|
Liabilities |
2,741,509
|
2,161,824
|
|
|
Stockholders’ equity: |
|
|
|
|
Total Equity |
1,904,360
|
1,923,427
|
|
|
Total liabilities and stockholders’ equity |
4,645,869
|
4,085,251
|
|
|
Consolidation, Eliminations [Member] |
|
|
|
|
Current assets: |
|
|
|
|
Cash and cash equivalents |
0
|
0
|
$ 0
|
$ 0
|
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 |
0
|
0
|
|
|
Total current assets |
0
|
0
|
|
|
Property, plant and equipment, net of accumulated depreciation of $1,320,644 in 2016 and $1,302,380 in 2015 (Note 5) |
0
|
0
|
|
|
Goodwill |
0
|
|
|
|
Intangible Assets, Net (Excluding Goodwill) |
0
|
0
|
|
|
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures |
(9,588,190)
|
(9,147,423)
|
|
|
Other noncurrent assets |
(480,811)
|
(169,964)
|
|
|
Assets |
(10,069,001)
|
(9,317,387)
|
|
|
Current liabilities: |
|
|
|
|
Accounts payable and accrued liabilities |
(617,477)
|
(306,574)
|
|
|
Accrued income taxes |
0
|
0
|
|
|
Total current liabilities |
(617,477)
|
(306,574)
|
|
|
Long-term debt, net of unamortized debt issuance costs of $8,674 at December 31, 2016 and $10,202 at December 31, 2015 |
0
|
0
|
|
|
Other long-term liabilities |
0
|
0
|
|
|
Long-term deferred tax liability |
0
|
0
|
|
|
Intercompany payables |
(5,427,598)
|
(4,923,149)
|
|
|
Liabilities |
(6,045,075)
|
(5,229,723)
|
|
|
Stockholders’ equity: |
|
|
|
|
Total Equity |
(4,023,926)
|
(4,087,664)
|
|
|
Total liabilities and stockholders’ equity |
$ (10,069,001)
|
$ (9,317,387)
|
|
|