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Component: (Network and Table)
Network
2404402 - Disclosure - Comprehensive Income - Schedule of Changes in Balances of Each Component of Accumulated Other Comprehensive Income (Detail)
(http://www.ambac.com/role/ComprehensiveIncomeScheduleOfChangesInBalancesOfEachComponentOfAccumulatedOtherComprehensiveIncomeDetail)
TableAccumulated Other Comprehensive Income (Loss) [Table]
Slicers (applies to each fact value in each table cell)
Reporting Entity [Axis]0000874501 (http://www.sec.gov/CIK)
Scenario [Axis]Successor [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]Period [Axis]
2016-01-01 - 2016-12-31
2015-01-01 - 2015-12-31
Equity Components [Axis]Equity Components [Axis]
Unrealized Gains (Losses) on Available-for-Sale Securities [Member]Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]Accumulated Translation Adjustment [Member]Equity Component [Domain]Unrealized Gains (Losses) on Available-for-Sale Securities [Member]Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]Accumulated Translation Adjustment [Member]Equity Component [Domain]
Changes In Accumulated Other Comprehensive Income [Roll Forward]
 
 
 
 
 
 
 
 
Beginning Balance
50,963,000  
9,344,000  
(45,092,000) 
15,215,000  
210,693,000  
10,031,000  
(441,000) 
220,283,000  
Other comprehensive income before reclassifications
85,378,000  
1,041,000  
(122,128,000) 
(35,709,000) 
(131,976,000) 
193,000  
(44,651,000) 
(176,434,000) 
Amounts reclassified from accumulated other comprehensive income
(17,478,000) 
(1,018,000) 
0  
(18,496,000) 
(27,754,000) 
(880,000) 
0  
(28,634,000) 
Net current period other comprehensive income
67,900,000  
 
23,000  
 
(122,128,000) 
 
(54,205,000) 
 
(159,730,000) 
 
(687,000) 
 
(44,651,000) 
 
(205,068,000) 
 
Ending Balance
118,863,000  
 
9,367,000  
 
(167,220,000) 
 
(38,990,000) 
 
50,963,000  
 
9,344,000  
 
(45,092,000) 
 
15,215,000