Segment Information (Tables)

3 Months Ended

Mar. 31, 2014

Segment Reporting [Abstract]

Summary of Financial Information by Reportable Segment

The following table is a summary of financial information by reportable segment for the affected periods:

Successor Ambac - March 31, 2014	Financial Guarantee			Financial Services			Corporate and Other			Inter-segment Eliminations			Consolidated
Revenues:
Unaffiliated customers (1)	$	162,553		$	(53,438	)	$	23		$	—		$	109,138
Inter-segment	375			(75		)	8,635			(8,935		)	—
Total revenues	$	162,928		$	(53,513	)	$	8,658		$	(8,935	)	$	109,138
Pre-tax income (loss) from continuing operations:
Unaffiliated customers (1) (2) (3)	$	216,261		$	(54,529	)	$	(2,434	)	$	—		$	159,298
Inter-segment	(9,157		)	(454		)	9,611			—			—
Pre-tax income (loss) from continuing operations	$	207,104		$	(54,983	)	$	7,177		$	—		$	159,298
Total assets as of March 31, 2014	$	26,535,119		$	534,256		$	44,873		$	—		$	27,114,248
Net investment income	$	70,384		$	394		$	23		$	—		$	70,801
Insurance intangible amortization	$	31,714		$	—		$	—		$	—		$	31,714
Interest expense	$	31,881		$	447		$	—		$	—		$	32,328
Reorganization items (4)	$	—		$	—		$	23		$	—		$	23

Predecessor Ambac - Three months ended March 31, 2013	Financial Guarantee			Financial Services			Corporate and Other			Inter-segment Eliminations			Consolidated
Revenues:
Unaffiliated customers (1)	$	250,238		$	40,605		$	29		$	—		$	290,872
Inter-segment	726			(684		)	—			(42		)	—
Total revenues	$	250,964		$	39,921		$	29		$	(42	)	$	290,872
Pre-tax income (loss) from continuing operations:
Unaffiliated customers (1) (2)	$	246,700		$	38,847		$	(2,638	)	$	—		$	282,909
Inter-segment	(72		)	(849		)	921			—			—
Pre-tax income (loss) from continuing operations	$	246,628		$	37,998		$	(1,717	)	$	—		$	282,909
Total assets as of March 31, 2013	$	25,563,432		$	558,593		$	32,069		$	—		$	26,154,094
Net investment income	$	83,274		$	1,211		$	29		$	—		$	84,514
Interest expense	$	22,176		$	989		$	—		$	—		$	23,165
Reorganization items (4)	$	—		$	—		$	2,059		$	—		$	2,059

(1) Included in both revenues from unaffiliated customers and in pre-tax income (loss) from continuing operations from unaffiliated customers is net investment income.

(2) Included in pre-tax income (loss) from continuing operations from unaffiliated customers is interest expense.

(3) Included in pre-tax income from continuing operations from unaffiliated customers is amortization of intangible asset arising from financial guarantee contracts that were set to fair value upon adoption of Fresh Start.

(4) Refer to "Note 2: Reorganization Under Chapter 11," for a further discussion of Reorganization items.

Schedule of Gross Premiums Written, Net Premiums Earned and Net Change in Fair Value of Credit Derivatives

The following table summarizes gross premiums written, net premiums earned and the net change in fair value of credit derivatives included in the Financial Guarantee segment by location of risk for the affected periods:

	Successor Ambac - Three Months Ended March 31, 2014							Predecessor Ambac - Three Months Ended March 31, 2013
	Gross Premiums Written			Net Premiums Earned		Net Change In Fair Value Of Credit Derivatives		Gross Premiums Written			Net Premiums Earned		Net Change In Fair Value Of Credit Derivatives
United States	$	(699	)	$	56,758	$	6,581	$	(8,716	)	$	81,057	$	16,530
United Kingdom	(6,166		)	20,635		—		8,507			13,754		(2,175		)
Other international	1,099			5,154		801		(3,321		)	5,445		(1,568		)
Total	$	(5,766	)	$	82,547	$	7,382	$	(3,530	)	$	100,256	$	12,787