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v3.3.1.900

Basis of Presentation (Details) - USD ($) $ / shares in Units, $ in Thousands |  | 3 Months Ended |
--- | --- | --- | ---
Oct. 01, 2013 | Mar. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014 | Sep. 30, 2015
Basis of presentation |  |  |  |  |
Cumulative effect of an accounting change to retained earnings net of income tax | $ 1,600 |  |  |  |
Operating revenues |  |  | $ 487,847 | $ 1,060,787 |
Operating costs, excluding depreciation |  |  | 276,644 | 559,463 |
Net income |  |  | $ 16,002 | $ 203,608 |
Basic earnings per common share (in dollars per share) |  |  | $ 0.15 | $ 1.86 |
Total assets |  |  | $ 7,130,274 |  | $ 7,147,242
Total liabilities |  |  |  |  | 2,251,396
Total shareholders' equity |  |  | 4,830,293 |  | 4,895,846
Early termination revenue |  |  | 28,900 | $ 23,400 |
Abandonments |  |  | 500 | 2,200 |
Foreign currency losses |  |  | 8,500 | (1,500) |
Previous Accounting Guidance [Member] |  |  |  |  |
Basis of presentation |  |  |  |  |
Net income |  |  | 5,400 |  |
Foreign currency losses |  |  | $ (6,300) |  |
Subsequent Event. |  |  |  |  |
Basis of presentation |  |  |  |  |
Early termination revenue |  | $ 78,000 |  |  |
As Reported |  |  |  |  |
Basis of presentation |  |  |  |  |
Operating revenues |  |  |  | 1,056,585 |
Operating costs, excluding depreciation |  |  |  | 554,243 |
Net income |  |  |  | $ 203,042 |
Basic earnings per common share (in dollars per share) |  |  |  | $ 1.85 |
Total assets |  |  |  |  | 7,152,012
Total liabilities |  |  |  |  | 2,254,560
Total shareholders' equity |  |  |  |  | 4,897,452
Adjustments |  |  |  |  |
Basis of presentation |  |  |  |  |
Operating revenues |  |  |  | $ 4,202 |
Operating costs, excluding depreciation |  |  |  | 5,220 |
Net income |  |  |  | $ 566 |
Basic earnings per common share (in dollars per share) |  |  |  | $ 0.01 |
Total assets |  |  |  |  | (4,770)
Total liabilities |  |  |  |  | (3,164)
Total shareholders' equity |  |  |  |  | $ (1,606)

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