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Consolidated Statements of Total Comprehensive Income (USD $) In Thousands, except Per Share data, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2012 | Sep. 30, 2011 | Sep. 30, 2012 | Sep. 30, 2011
Revenues: |  |  |  |
Net premiums earned | $ 113,074 | $ 102,055 | $ 311,066 | $ 293,125
Net investment income | 84,078 | 90,699 | 290,031 | 262,806
Other-than-temporary impairments: |  |  |  |
Total other-than-temporary impairment losses | (2,501) | (19,671) | (14,304) | (39,177)
Portion of loss recognized in other comprehensive income | 2,147 | 8,784 | 8,551 | 8,999
Net other-than-temporary impairment losses recognized in earnings | (354) | (10,887) | (5,753) | (30,178)
Net realized investment gains | 3,162 | 5,084 | 70,621 | 5,006
Change in fair value of credit derivatives: |  |  |  |
Realized gains and other settlements | 2,944 | 3,829 | 9,271 | 13,376
Unrealized gains | 24,496 | 676 | 3,532 | 6,513
Net change in fair value of credit derivatives | 27,440 | 4,505 | 12,803 | 19,889
Derivative products | (36,007) | (215,775) | (113,141) | (260,366)
Net realized (losses) gains on extinguishment of debt |  |  | (177,745) | 3,119
Other (loss)income | (368) | (4,972) | 100,562 | 32,558
Income on variable interest entities | 6,137 | 55,008 | 26,893 | 51,236
Total revenues before expenses and reorganization items | 197,162 | 25,717 | 515,337 | 377,195
Expenses: |  |  |  |
Losses and loss expenses | (18,745) | (60,238) | 720,346 | 1,055,807
Underwriting and operating expenses | 33,347 | 44,860 | 103,448 | 105,860
Interest expense | 23,268 | 33,074 | 88,962 | 95,004
Total expenses before reorganization items | 37,870 | 17,696 | 912,756 | 1,256,671
Pre-tax income (loss) from continuing operations before reorganization items | 159,292 | 8,021 | (397,419) | (879,476)
Reorganization items | 1,252 | 8,519 | 4,480 | 39,794
Pre-tax income (loss) from continuing operations | 158,040 | (498) | (401,899) | (919,270)
Provision for income taxes | 667 | 75,011 | 756 | 77,903
Net gain (loss) | 157,373 | (75,509) | (402,655) | (997,173)
Less: net (loss) gain attributable to the noncontrolling interest | (171) | (2) | (2,401) | 45
Net income (loss) attributable to common shareholders | 157,544 | (75,507) | (400,254) | (997,218)
Other comprehensive loss after tax: |  |  |  |
Income (loss) | 157,373 | (75,509) | (402,655) | (997,173)
Unrealized gains (losses) on securities, net of deferred income taxes of $0 | 108,446 | (36,121) | 124,008 | 156,385
Less: reclassification adjustment for net (loss) gain included in net (loss) | (361) | (7,285) | 55,116 | (27,364)
Gain (loss) on foreign currency translation, net of deferred income taxes of $0 | 1,686 | (2,264) | (425) | 1,829
Amortization of postretirement benefit, net of tax |  | 14 | (3,792) | 739
Total other comprehensive income (loss), net of tax | 110,493 | (31,086) | 64,675 | 185,578
Total comprehensive income (loss) | 267,866 | (106,595) | (337,980) | (810,856)
Less: comprehensive (loss) income attributable to the noncontrolling interest: |  |  |  |
Net (loss) income | (171) | (2) | (2,401) | 45
Currency translation adjustments | 117 | (4) | (35) | (127)
Total comprehensive income (loss) attributable to Ambac Financial Group, Inc. | $ 267,920 | $ (106,589) | $ (335,544) | $ (810,774)
Income (loss) per share attributable to Ambac Financial Group, Inc. common shareholders | $ 0.52 | $ (0.25) | $ (1.32) | $ (3.30)
Income (loss) per diluted share attributable to Ambac Financial Group, Inc. common shareholders | $ 0.52 | $ (0.25) | $ (1.32) | $ (3.30)
Weighted-average number of common shares outstanding: |  |  |  |
Basic | 302,469,966 | 302,467,255 | 302,468,502 | 302,429,879
Diluted | 302,582,276 | 302,467,255 | 302,468,502 | 302,429,879

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