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Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified | 2 Months Ended | 4 Months Ended | 6 Months Ended
--- | --- | --- | ---
Jun. 30, 2013 Successor Ambac [Member] | Apr. 30, 2013 Predecessor Ambac [Member] | Jun. 30, 2012 Predecessor Ambac [Member]
Cash flows from operating activities: |  |  |
Net income (loss) attributable to common shareholders | $ 205,681 | $ 3,349,049 | $ (557,798)
Noncontrolling interest in subsidiaries' earnings | (399) | (1,771) | (2,230)
Net income (loss) | 205,282 | 3,347,278 | (560,028)
Adjustments to reconcile net income to net cash used in operating activities: |  |  |
Depreciation and amortization | 501 | 974 | 1,546
Amortization of bond premium and discount | (3,240) | (60,146) | (121,602)
Reorganization items | 424 | (2,745,180) | 3,228
Deferred income taxes | (16) | (6) |
Current income taxes | 186 | (101,188) | 1,043
Deferred acquisition costs |  | 14,207 | 11,603
Unearned premiums, net | (102,460) | (172,549) | (295,016)
Losses and loss expenses, net | (34,763) | (43,284) | 771,247
Ceded premiums payable | (3,033) | (2,059) | (17,276)
Investment income due and accrued | 2,243 | 1,781 | 2,677
Premium receivables | 66,733 | 88,990 | 198,605
Accrued interest payable | 15,511 | 23,953 | 53,425
Amortization of intangible assets | 24,952 |  |
Net mark-to-market (gains) losses | (45,146) | 63,828 | 20,964
Net realized investment gains | (18,472) | (53,305) | (67,459)
Losses on extinguishment of debt |  |  | 177,745
Other-than-temporary impairment charges | 2,002 | 467 | 5,399
Variable interest entity activities | (4,598) | (426,566) | (20,756)
Other, net | (66,543) | 62,122 | (129,916)
Net cash provided by operating activities | 39,563 | (683) | 35,429
Cash flows from investing activities: |  |  |
Proceeds from sales of bonds | 343,040 | 310,916 | 427,281
Proceeds from matured bonds | 182,304 | 307,472 | 521,807
Purchases of bonds | (746,914) | (286,633) | (448,691)
Proceeds from sales of other invested assets | 1,228 | (164,368) |
Purchases of other invested assets | (79,596) |  |
Change in short-term investments | 115,437 | (64,956) | (226,988)
Loans, net | 230 | 1,920 | 8,843
Change in swap collateral receivable | 10,889 | (8,863) | 26,391
Other, net | 4,678 | 19,828 | (7,343)
Net cash used in investing activities | (168,704) | 115,316 | 301,300
Cash flows from financing activities: |  |  |
Paydowns of variable interest entity secured borrowing | (3,310) | (5,519) | (10,636)
Proceeds from warrant exercise | 15 |  |
Payments for investment and repurchase agreement draws |  |  | (104,634)
Payments for extinguishment of long-term debt |  |  | (188,446)
Net cash used in financing activities | (3,295) | (5,519) | (303,716)
Net cash flow | (132,436) | 109,114 | 33,013
Cash at beginning on period | 152,951 | 43,837 | 15,999
Cash at ending of period | 20,515 | 152,951 | 49,012
Supplemental disclosure of cash flow information: |  |  |
Income taxes | 336 | 102,129 |
Interest on variable interest entity secured borrowing | 90 | 276 | 927
Interest on investment agreements | 203 | 1,726 | 4,570
Cash receipts and payments related to reorganization items: |  |  |
Professional fees paid for services rendered in connection with the Chapter 11 proceeding | $ 795 | $ 3,860 | $ 6,956

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