Radian (RDN) 10-Q 8 May 15 2015 Q1 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information Document	3 Months Ended
	Mar. 31, 2015	6-May-15
Document Information [Line Items]
Entity Registrant Name	Radian Group Inc.
Entity Central Index Key	890926
Current Fiscal Year End Date	-19
Entity Filer Category	Large Accelerated Filer
Document Type	10-Q
Document Period End Date	31-Mar-15
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q1
Amendment Flag	FALSE
Entity Common Stock, Shares Outstanding		191,420,223
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes

Condensed_Consolidated_Balance

Condensed Consolidated Balance Sheets (Unaudited) Statement (USD $)	Mar. 31, 2015		Dec. 31, 2014
In Thousands, unless otherwise specified
ASSETS
Fixed-maturities available for sale—at fair value (amortized cost $677,040 and $528,660)	$695,085		$536,890
Equity securities available for sale—at fair value (cost $76,900 and $76,900)	143,533		143,368
Trading securities—at fair value	1,574,795		1,633,584
Short-term investments—at fair value	1,194,280		1,300,872
Other invested assets	13,953		14,585
Total investments	3,621,646		3,629,299
Cash	57,204		30,465
Restricted cash	14,220		14,031
Accounts and notes receivable	64,405		85,792
Deferred income taxes, net	649,996		700,201
Goodwill and other intangible assets, net	293,798		288,240
Other assets (Note 8)	356,713		375,491
Assets held for sale (Note 2)	1,755,873	[1]	1,736,444
Total assets	6,813,855	[1]	6,859,963
LIABILITIES AND STOCKHOLDERS’ EQUITY
Unearned premiums	657,555		644,504
Reserve for losses and loss adjustment expense (“LAE”)	1,384,714		1,560,032
Long-term debt	1,218,972		1,209,926
Other liabilities	310,642		326,743
Liabilities held for sale (Note 2)	966,078		947,008
Total liabilities	4,537,961		4,688,213
Commitments and Contingencies (Note 15)
Equity component of currently redeemable convertible senior notes (Note 10)	68,982		74,690
Stockholders’ equity
Common stock: par value $.001 per share; 485,000,000 shares authorized at March 31, 2015 and December 31, 2014, respectively; 208,974,967 and 208,601,020 shares issued at March 31, 2015 and December 31, 2014, respectively; 191,415,726 and 191,053,530 shares outstanding at March 31, 2015 and December 31, 2014, respectively	209		209
Treasury stock, at cost: 17,559,241 and 17,547,490 shares at March 31, 2015 and December 31, 2014, respectively	-893,149		-892,961
Additional paid-in capital	2,541,585		2,531,513
Retained earnings	498,593		406,814
Accumulated other comprehensive income (“AOCI”)	59,674		51,485
Total stockholders’ equity	2,206,912		2,097,060
Total liabilities and stockholders’ equity	$6,813,855		$6,859,963
[1]	Assets held for sale are not part of the Mortgage Insurance or Services segments.

Balance_Sheet_Parenthetical_Pa

Balance Sheet Parenthetical (Parentheticals) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, except Share data, unless otherwise specified
Available-for-sale Debt Securities, Amortized Cost Basis	$677,040	$528,660
Available-for-sale Equity Securities, Amortized Cost Basis	$76,900	$76,900
Common Stock, Par or Stated Value Per Share	$0.00	$0.00
Common Stock, Shares Authorized	485,000,000	485,000,000
Common Stock, Shares, Issued	208,974,967	208,601,020
Common Stock, Shares, Outstanding	191,415,726	191,053,530
Treasury Stock, Shares	17,559,241	17,547,490

Condensed_Consolidated_Stateme

Condensed Consolidated Statements of Operations (Unaudited) (USD $)	3 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Revenues:
Net premiums earned—insurance	$224,595	$198,762
Services revenue	30,529	0
Net investment income	17,328	15,318
Net gains on investments and other financial instruments	16,779	42,968
Other income	1,432	1,126
Total revenues	290,663	258,174
Expenses:
Provision for losses	45,028	49,626
Policy acquisition costs	7,750	7,017
Direct cost of services	18,451	0
Other operating expenses	54,576	54,507
Interest expense	24,385	19,927
Amortization and impairment of intangible assets	3,023	0
Total expenses	153,213	131,077
Pretax income from continuing operations	137,450	127,097
Income tax provision (benefit)	45,723	-18,883
Net income from continuing operations	91,727	145,980
Income from discontinued operations, net of tax	530	56,779
Net income	$92,257	$202,759
Net income from continuing operations	$0.48	$0.84
Income from discontinued operations	$0	$0.33
Basic net income per share	$0.48	$1.17
Net income from continuing operations	$0.39	$0.68
Income from discontinued operations	$0	$0.26
Diluted net income per share	$0.39	$0.94
Weighted-average number of common shares outstanding—basic	191,224	173,165
Weighted-average number of common and common equivalent shares outstanding—diluted	243,048	222,668
Dividends per share	$0.00	$0.00

Condensed_Consolidated_Stateme1

Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Net income	$92,257	$202,759
Other comprehensive income, net of tax (see Note 11):
Net foreign currency translation adjustments	-126	0
Unrealized gains on investments:
Unrealized holding gains arising during the period	6,454	2,669
Less: Reclassification adjustment for net (losses) gains included in net income	-33	4
Net unrealized gains on investments	6,487	2,665
Net unrealized gains on investments recorded as assets held for sale	1,828	1,296
Other comprehensive income, net of tax	8,189	3,961
Comprehensive income	$100,446	$206,720

Condensed_Consolidated_Stateme2

Condensed Consolidated Statements of Changes in Common Stockholders' Equity (Unaudited) (USD $)	Total	Parent	Common Stock	Treasury Stock	Additional Paid-in Capital	Retained Earnings (Deficit)	Accumulated Other Comprehensive Income
In Thousands, unless otherwise specified
Beginning Balance, at Dec. 31, 2013		$939,645	$191	($892,807)	$2,347,104	($552,226)	$37,383
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	202,759	202,759	0	0	0	202,759	0
Net foreign currency translation adjustment, net of tax	0
Net unrealized gain on investments, net of tax		3,961	0	0	0	0	3,961
Repurchases of common stock under incentive plans		-130	0	-130	0	0	0
Issuance of common stock under benefit plans		458	0	0	458	0	0
Issuance of common stock under incentive plans		13	0	0	13	0	0
Stock-based compensation expense, net		310	0	0	310	0	0
Adjustments to Additional Paid in Capital, Equity Component of Convertible Debt, Subsequent Adjustments		-91,016	0	0	-91,016	0	0
Dividends declared		-433	0	0	-433	0	0
Ending Balance, at Mar. 31, 2014		1,055,567	191	-892,937	2,256,436	-349,467	41,344
Beginning Balance, at Dec. 31, 2014	2,097,060	2,097,060	209	-892,961	2,531,513	406,814	51,485
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	92,257	92,257	0	0	0	92,257	0
Net foreign currency translation adjustment, net of tax	-126	-126	0	0	0	0	-126
Net unrealized gain on investments, net of tax		8,315	0	0	0	0	8,315
Repurchases of common stock under incentive plans		-188	0	-188	0	0	0
Issuance of common stock under benefit plans		452	0	0	452	0	0
Issuance of common stock under incentive plans		789	0	0	789	0	0
Stock-based compensation expense, net		3,123	0	0	3,123	0	0
Adjustments to Additional Paid in Capital, Equity Component of Convertible Debt, Subsequent Adjustments		5,708	0	0	5,708	0	0
Dividends declared			0	0	0
Dividends, Common Stock, Cash		-478				-478	0
Ending Balance, at Mar. 31, 2015	$2,206,912	$2,206,912	$209	($893,149)	$2,541,585	$498,593	$59,674

Condensed_Consolidated_Stateme3

Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Net Cash Provided by (Used in) Operating Activities [Abstract]
Net cash provided by (used in) operating activities, continuing operations	$80	($121,846)
Net cash used in operating activities, discontinued operations	-12,168	-15,164
Net cash used in operating activities	-12,088	-137,010
Cash flows from investing activities:
Proceeds from sales of fixed-maturity investments available for sale	3,621	1,742
Proceeds from sales of trading securities	69,915	383,967
Proceeds from redemptions of fixed-maturity investments available for sale	5,502	0
Proceeds from redemptions of fixed-maturity investments held to maturity	0	300
Purchases of fixed-maturity investments available for sale	-152,290	-71,173
Sales (purchases) and redemptions of short-term investments, net	106,728	-182,936
Sales of other assets, net	632	640
Purchases of property and equipment, net	-2,470	-2,769
Acquisitions, net of cash acquired	-6,449	0
Net cash provided by investing activities, continuing operations	25,189	129,771
Net cash provided by investing activities, discontinued operations	9,514	4,681
Net cash provided by investing activities	34,703	134,452
Cash flows from financing activities:
Dividends paid	-478	-433
Excess tax benefits from stock-based awards	1,408	89
Net cash provided by (used in) financing activities, continuing operations	930	-344
Net cash provided by (used in) financing activities, discontinued operations	0	0
Net cash provided by (used in) financing activities	930	-344
Effect of exchange rate changes on cash	-46	7
Increase (decrease) in cash	23,499	-2,895
Cash, beginning of period	30,465	22,880
Change in cash of business held for sale	3,240	-387
Cash, end of period	57,204	19,598
Supplemental disclosures of cash flow information:
Income taxes (received) paid	-41	1,592
Interest paid	$4,516	$4,520

Note_1_Condensed_Consolidated_

Note 1 - Condensed Consolidated Financial Statements - Basis of Presentation and Business Overview (Notes)	3 Months Ended
	Mar. 31, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Condensed Consolidated Financial Statements - Basis of Presentation and Business Overview	Condensed Consolidated Financial Statements—Basis of Presentation and Business Overview
	Our condensed consolidated financial statements include the accounts of Radian Group Inc. and its subsidiaries. We refer to Radian Group Inc. together with its consolidated subsidiaries as “Radian,” the “Company,” “we,” “us” or “our,” unless the context requires otherwise. We generally refer to Radian Group Inc. alone, without its consolidated subsidiaries, as “Radian Group.” Unless otherwise defined in this report, certain terms and acronyms used throughout this report are defined in the Glossary of Abbreviations and Acronyms included as part of this report.
	Our condensed consolidated financial statements are prepared in accordance with GAAP and include the accounts of all wholly-owned subsidiaries. Companies in which we, or one of our subsidiaries, exercise significant influence (generally ownership interests ranging from 20% to 50%), are accounted for in accordance with the equity method of accounting. Any VIEs for which we are the primary beneficiary are consolidated. All intercompany accounts and transactions, and intercompany profits and losses, have been eliminated. We have condensed or omitted certain information and footnote disclosures normally included in consolidated financial statements prepared in accordance with GAAP pursuant to the instructions set forth in Article 10 of Regulation S-X of the SEC.
	The financial information presented for interim periods is unaudited; however, such information reflects all adjustments that are, in the opinion of management, necessary for the fair statement of the financial position, results of operations, comprehensive income and cash flows for the interim periods presented. Such adjustments are of a normal recurring nature. The year-end condensed balance sheet data was derived from our audited financial statements, but does not include all disclosures required by GAAP. These interim financial statements should be read in conjunction with the audited financial statements and notes thereto included in our 2014 Form 10-K. The results of operations for interim periods are not necessarily indicative of results to be expected for the full year or for any other period. Certain prior period amounts have been reclassified to conform to current period presentation.
	The preparation of financial statements in conformity with GAAP requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of our contingent assets and liabilities at the dates of the financial statements and the reported amounts of revenues and expenses during the reporting periods. While the amounts included in our condensed consolidated financial statements include our best estimates and assumptions, actual results may vary materially.
	In April 2014, the Financial Accounting Standards Board (“FASB”) issued an update to the accounting standard for reporting discontinued operations and disclosures of disposals of components of an entity. This update changes the requirements for reporting discontinued operations. A disposal of a component of an entity or a group of components of an entity is required to be reported in discontinued operations if the disposal represents (or would represent) a strategic shift that has (or will have) a major effect on an entity’s operations and financial results when any of the following occurs: (a) the component of an entity or group of components of an entity meets the criteria to be classified as held for sale; (b) the component of an entity or group of components of an entity is disposed of by sale; or (c) the component of an entity or group of components of an entity is disposed of other than by sale (for example, by abandonment or in a distribution to owners in a spin-off). The amendments in this update require expanded disclosures about discontinued operations. The provisions of this update are effective for all disposals (or classifications as held for sale) of components of an entity that occur within annual periods beginning on or after December 15, 2014, and interim periods within those years. The significance of this guidance for the Company is dependent on any future dispositions or disposals.
	In May 2014, the FASB issued an update to the accounting standard regarding revenue recognition. This update is intended to provide a consistent approach in recognizing revenue. In accordance with the new standard, recognition of revenue occurs when a customer obtains control of promised goods or services in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. In addition, the new standard requires that reporting companies disclose the nature, amount, timing, and uncertainty of revenue and cash flows arising from contracts with customers. While this update is not expected to change revenue recognition principles related to our insurance products, this update may be applicable to revenues from our Services segment, which has been included in our condensed consolidated statements of operations beginning with the third quarter of 2014. The provisions of this update are effective for interim and annual periods beginning after December 15, 2016. We are currently evaluating the impact to our financial statements and future disclosures as a result of this update, if any.
	In April 2015, the FASB issued an update to the accounting standard for the presentation of debt issuance costs in financial statements. The new standard requires an entity to present debt issuance costs related to a recognized debt liability as a direct reduction from the carrying amount of the related debt liability, consistent with debt discounts, rather than as a separate asset as currently required. The recognition and measurement guidance for debt issuance costs are not affected by the update. The provisions of this update are effective for interim and annual periods beginning after December 15, 2015 and must be applied on a retrospective basis for all periods presented. Early adoption is permitted for financial statements that have not been previously issued. Upon adoption, the standard requires an entity to disclose: (a) the nature of and reason for the change in accounting principle; (b) the transition method; (c) a description of the prior period information that has been retrospectively adjusted; and (d) the effect of the change on the financial statement line items. The implementation of this update would result in a reclassification to present debt issuance costs as a reduction of the related debt liability rather than as an asset on our consolidated balance sheets.
	In April 2015, the FASB issued an update to the accounting standard for the accounting of internal-use software. The amendments in this update provide guidance to customers about whether a cloud computing arrangement includes a software license. If a cloud computing arrangement includes a software license, then the customer should account for the software license element of the arrangement consistent with the acquisition of other software licenses. If a cloud computing arrangement does not include a software license, the customer should account for the arrangement as a service contract. The provisions of this update are effective for interim and annual periods beginning after December 15, 2015, and early adoption is permitted. Management is currently evaluating the potential impact to our financial statements, if any.
	Business Overview
	We provide mortgage and real estate products and services and have two reportable business segments—Mortgage Insurance and Services. On April 1, 2015, Radian Guaranty completed the previously disclosed sale to Assured of 100% of the issued and outstanding shares of Radian Asset Assurance, a financial guaranty insurer, pursuant to the Radian Asset Assurance Stock Purchase Agreement dated as of December 22, 2014. As a result, until the April 1, 2015 sale date, the operating results of Radian Asset Assurance continue to be classified as discontinued operations for all periods presented in our condensed consolidated statements of operations. Prior periods have been revised to conform to the current period presentation for these changes. See Note 2 for additional information related to discontinued operations.
	Mortgage Insurance
	Our Mortgage Insurance segment provides credit-related insurance coverage, principally through private mortgage insurance, to mortgage lending institutions. We provide our mortgage insurance products mainly through our wholly-owned subsidiary, Radian Guaranty. Private mortgage insurance protects mortgage lenders from all or a portion of default-related losses on residential mortgage loans made to home buyers who generally make down payments of less than 20% of the home’s purchase price. Private mortgage insurance also facilitates the sale of these mortgage loans in the secondary mortgage market, most of which are sold to the GSEs.
	Our Mortgage Insurance segment currently offers primary mortgage insurance coverage on residential First-liens. At March 31, 2015, primary insurance on First-liens comprised approximately 97.3% of our $44.6 billion total direct RIF. At March 31, 2015, pool insurance, which we previously offered, represented approximately 2.6% of our total direct RIF.
	The FHFA, the GSEs and state insurance regulators impose various capital and financial requirements on our insurance subsidiaries. These include financial requirements, such as Risk-to-capital, other risk-based capital measures and surplus requirements, as well as the PMIERs Financial Requirements discussed below. Failure to comply with applicable financial requirements may limit the amount of insurance that our insurance subsidiaries may write. The GSEs and our state insurance regulators also possess significant discretion with respect to our insurance subsidiaries.
	On April 17, 2015, the FHFA issued the final PMIERs, setting forth revised requirements for private mortgage insurers, including Radian Guaranty, to remain eligible insurers of loans purchased by the GSEs. The PMIERs Financial Requirements require a mortgage insurer’s Available Assets to meet or exceed its Minimum Required Assets. Under the final PMIERs, Radian Guaranty’s Available Assets and Minimum Required Assets are determined on an aggregate basis, taking into account the assets and insured risk of Radian Guaranty and its affiliated reinsurers. Therefore, developments that impact the assets and insured risk of Radian Guaranty and its affiliated reinsurers individually (such as capital contributions from Radian Group) also will impact the aggregate Available Assets and Minimum Required Assets, and importantly, Radian Guaranty’s compliance with the PMIERs Financial Requirements. As a result, references to Radian Guaranty’s Available Assets and Minimum Required Assets take into consideration both Radian Guaranty and its affiliated reinsurers.
	Once they become effective for existing eligible mortgage insurers on December 31, 2015, the PMIERs Financial Requirements will replace the capital adequacy standards under the current GSE eligibility requirements. The final PMIERs Financial Requirements included significant changes to the Minimum Required Asset calculations from those originally published in the proposed PMIERs, with those changes primarily impacting the performing 2005 through 2008 vintage loans, as well as pool insurance. These changes resulted in a significant decrease to Radian Guaranty’s estimated Minimum Required Assets as compared to the estimated amount under the proposed PMIERs Financial Requirements.
	Based on our estimates of Radian Guaranty’s Available Assets and Minimum Required Assets as of March 31, 2015, we expect that Radian Guaranty will have the ability to immediately comply with the PMIERs Financial Requirements, after giving effect to the proceeds Radian Guaranty received from the sale of Radian Asset Assurance on April 1, 2015 and future expected contributions to Radian Guaranty and its affiliated reinsurers of only a portion of our holding company liquidity.
	The implementation of the final PMIERs will: (1) increase the amount of capital that Radian Guaranty is required to hold compared to current capital requirements, and therefore, reduce our current returns on subsidiary capital; (2) impose extensive and more stringent operational requirements in areas such as claim processing, loss mitigation, document retention, underwriting, quality control, reporting and monitoring, among others, that may result in additional costs in order to achieve and maintain compliance; and (3) require the consent of the GSEs for Radian Guaranty to take certain actions such as paying dividends, entering into various inter-company agreements, and commuting or reinsuring risk, among others.
	The NAIC is in the process of reviewing the minimum capital and surplus requirements for mortgage insurers and considering changes to the Model Act. While the outcome of this process is not known, it is possible that among other changes, the NAIC will recommend and adopt more stringent capital requirements than currently exist under the Model Act, which could increase the capital requirements for Radian Guaranty in states that adopt the new Model Act.
	Services
	Our Services segment provides outsourced services, information-based analytics and specialty consulting for buyers and sellers of, and investors in, mortgage loans and other real estate-related loans and securities and other debt instruments. The primary services of our Services segment include: (1) loan review/due diligence; (2) surveillance; (3) valuation and component services; (4) REO management; and (5) EuroRisk mortgage services in the United Kingdom and Europe. These services and solutions are provided primarily through Clayton and its subsidiary Green River Capital.
	During the first quarter of 2015, Clayton further expanded its service offerings by acquiring a real estate brokerage company that provides products and services that include automated valuation models; broker price opinions used by investors, lenders and loan servicers; and advanced technology solutions for: (1) monitoring loan portfolio performance; (2) tracking non-performing loans; (3) managing REO assets; and (4) valuing residential real estate through a secure platform. This real estate brokerage company is part of the Services segment. See Note 6 for additional information.
	BofA Settlement Agreement
	Implementation of the BofA Settlement Agreement commenced on February 1, 2015 for Subject Loans held in portfolio by the Insureds or purchased by the GSEs on that date. Approximately 12% of the Subject Loans are neither held in portfolio by the Insureds nor owned by the GSEs, and require the consent of certain other investors for these loans to be included in the BofA Settlement Agreement, except with respect to certain limited rights of cancellation. The contractual deadline for such consent has been extended to June 1, 2015. See Note 10 of Notes to Consolidated Financial Statements in our 2014 Form 10-K for additional information about the BofA Settlement Agreement.

Note_2_Discontinued_Operations

Note 2 - Discontinued Operations (Notes)	3 Months Ended
	Mar. 31, 2015
Discontinued Operations and Disposal Groups [Abstract]
Disposal Groups, Including Discontinued Operations, Disclosure [Text Block]	Discontinued Operations
	On April 1, 2015, Radian Guaranty completed the sale of 100% of the issued and outstanding shares of Radian Asset Assurance for a purchase price of approximately $810 million, pursuant to the Radian Asset Assurance Stock Purchase Agreement. The divestiture was intended to better position Radian Guaranty to comply with the PMIERs and to support Radian’s strategic focus on the mortgage and real estate industries. After closing costs and other adjustments, Radian Guaranty received net proceeds of $789 million. See Note 1 for additional information regarding the PMIERs.
	Previously, Radian Asset Assurance comprised substantially all of the financial guaranty segment. Radian Asset Assurance provided direct insurance and reinsurance on credit-based risks. As a result, the assets and liabilities associated with the discontinued operations historically were a source of significant volatility to Radian’s results of operations, due to various factors including fluctuations in fair value and credit risk.
	Based upon the applicable terms of the Radian Asset Assurance Stock Purchase Agreement, we determined that Radian Asset Assurance met the criteria for held for sale and discontinued operations accounting at December 31, 2014. As a result, we recognized a pre-tax impairment charge of approximately $468 million for the year ended December 31, 2014 and an additional charge of $13.9 million for the three months ended March 31, 2015. The operating results of Radian Asset Assurance are classified as discontinued operations for all periods presented in our condensed consolidated statements of operations. Since the purchase price was not subject to adjustment between December 31, 2014 and the closing date for the impact of: (i) Radian Asset Assurance’s results of operations; (ii) changes in valuation; or (iii) market conditions, the after-tax impact of such changes reflected in income (loss) from operations of businesses held for sale were substantially offset by the resulting change in loss on classification as held for sale. We recorded net income on discontinued operations of $0.5 million related to this sale in the first quarter of 2015. No general corporate overhead or interest expense was allocated to discontinued operations.
	In the tables below we have summarized the major components of the net income from discontinued operations, as well as the assets and liabilities held for sale.
	The income from discontinued operations, net of tax, consisted of the following components for the periods indicated:
		Three Months Ended
		March 31,
	(In thousands)	2015			2014
	Net premiums earned	$	1,007		$	6,903
	Net investment income	9,153			8,911
	Net gains on investments and other financial instruments	13,668			22,182
	Change in fair value of derivative instruments	2,625			50,086
	Total revenues	26,453			88,082
	Provision for losses	502			5,649
	Policy acquisition costs	(191		)	1,597
	Other operating expense	4,107			5,402
	Total expenses	4,418			12,648
	Equity in net loss of affiliates	(13		)	(13		)
	Income from operations of businesses held for sale	22,022			75,421
	Loss on classification as held for sale	(13,930		)	—
	Income tax provision	7,562			18,642
	Income from discontinued operations, net of tax	$	530		$	56,779
	The assets and liabilities associated with the discontinued operations have been segregated in the condensed consolidated balance sheets. The following table summarizes the major components of Radian Asset Assurance’s assets and liabilities held for sale on the condensed consolidated balance sheets as of the dates indicated:
	(In thousands)	March 31, 2015			December 31, 2014
	Fixed-maturity investments	$	226,334		$	224,552
	Equity securities	4,019			3,749
	Trading securities	679,972			689,887
	Short-term investments	449,391			435,413
	Other invested assets	108,080			108,206
	Other assets	288,077			274,637
	Total assets held for sale	$	1,755,873		$	1,736,444
	Unearned premiums	$	152,445		$	158,921
	Reserve for losses and LAE	32,420			31,558
	VIE debt	82,238			85,016
	Derivative liabilities	187,462			183,370
	Other liabilities	511,513			488,143
	Total liabilities held for sale	$	966,078		$	947,008

Note_3_Segment_Reporting_Notes

Note 3 - Segment Reporting (Notes)	3 Months Ended
	Mar. 31, 2015
Segment Reporting [Abstract]
Segment Reporting Disclosure	Segment Reporting
	We currently have two strategic business units that we manage separately—Mortgage Insurance and, effective with the June 30, 2014 acquisition of Clayton, our Services segment. The operating results of Radian Asset Assurance are classified as discontinued operations for all periods presented in our condensed consolidated statements of operations. Previously, Radian Asset Assurance had represented substantially all of the financial guaranty segment; therefore, we no longer report a financial guaranty business segment. Certain corporate income and expenses that were previously allocated to the financial guaranty segment but were not reclassified to discontinued operations, such as corporate investment income, interest expense and corporate overhead expenses, have been reallocated to the Mortgage Insurance segment. Prior periods have been revised to conform to the current period presentation for these changes. See Note 2 for additional information related to discontinued operations.
	We allocate to our Mortgage Insurance segment: (i) corporate expenses based on an allocated percentage of time spent on the Mortgage Insurance segment; (ii) all corporate cash and investments; (iii) all of the interest expense except for interest expense related to the Senior Notes due 2019 that were issued to purchase Clayton; and (iv) corporate income and expenses that were previously allocated to our financial guaranty segment and were not allocated to discontinued operations.
	We allocate to our Services segment: (i) corporate expenses based on an allocated percentage of time spent on the Services segment; and (ii) as noted above, all of the interest expense related to the Senior Notes due 2019. No corporate cash or investments are allocated to the Services segment. We have included Clayton’s results of operations from the June 30, 2014 date of acquisition. Inter-segment activities are recorded at market rates for segment reporting and eliminated in consolidation.
	Effective with the fourth quarter of 2014, certain loan servicer surveillance functions previously considered part of the Mortgage Insurance segment were transferred to the Services segment as part of a change in our internal management reporting. As a result, these activities are now reported in the Services segment for all periods presented.
	Adjusted Pretax Operating Income (Loss)
	Our senior management, including our Chief Executive Officer (our chief operating decision maker), uses adjusted pretax operating income (loss) as our primary measure to evaluate the fundamental financial performance of each of Radian’s business segments and to allocate resources to the segments. Adjusted pretax operating income (loss) is defined as pretax income (loss) from continuing operations excluding the effects of net gains (losses) on investments and other financial instruments, acquisition-related expenses, amortization and impairment of intangible assets and net impairment losses recognized in earnings.
	Although adjusted pretax operating income (loss) excludes certain items that have occurred in the past and are expected to occur in the future, the excluded items represent those that are: (1) not viewed as part of the operating performance of our primary activities; or (2) not expected to result in an economic impact equal to the amount reflected in pretax income (loss) from continuing operations. These adjustments, along with the reasons for their treatment, are described below.
	-1	Net gains (losses) on investments and other financial instruments. The recognition of realized investment gains or losses can vary significantly across periods as the activity is highly discretionary based on the timing of individual securities sales due to such factors as market opportunities, our tax and capital profile and overall market cycles. Unrealized investment gains and losses arise primarily from changes in the market value of our investments that are classified as trading. These valuation adjustments may not necessarily result in economic gains or losses. We do not view them to be indicative of our fundamental operating activities. Trends in the profitability of our fundamental operating activities can be more clearly identified without the fluctuations of these realized and unrealized gains or losses. Therefore, these items are excluded from our calculation of adjusted pretax operating income (loss). However, we include the change in expected economic loss or recovery associated with our consolidated VIEs, if any, in the calculation of adjusted pretax operating income (loss).
	-2	Acquisition-related expenses. Acquisition-related expenses represent the costs incurred to effect an acquisition of a business (i.e., a business combination). Because we pursue acquisitions on a strategic and selective basis and not in the ordinary course of our business, we do not view acquisition-related expenses as a consequence of a primary business activity. Therefore, we do not consider these expenses to be part of our operating performance and they are excluded from our calculation of adjusted pretax operating income (loss).
	-3	Amortization and impairment of intangible assets. Amortization of intangible assets represents the periodic expense required to amortize the cost of intangible assets over their estimated useful lives. Intangible assets with an indefinite useful life are also periodically reviewed for potential impairment, and impairment adjustments are made whenever appropriate. These charges are not viewed as part of the operating performance of our primary activities and therefore are excluded from our calculation of adjusted pretax operating income (loss).
	-4	Net impairment losses recognized in earnings. The recognition of net impairment losses on investments can vary significantly in both size and timing, depending on market credit cycles. We do not view these impairment losses to be indicative of our fundamental operating activities. Therefore, whenever these losses occur, we exclude them from our calculation of adjusted pretax operating income (loss).
	Summarized financial information concerning our operating segments as of and for the periods indicated, is as follows:
		Three Months Ended March 31, 2015
	(In thousands)	Mortgage Insurance			Services				Total
	Net premiums written—insurance	$	241,908		$	—			$	241,908
	Increase in unearned premiums	(17,313		)	—				(17,313		)
	Net premiums earned—insurance	224,595			—				224,595
	Services revenue	—			30,742				30,742
	Net investment income (1)	17,328			—				17,328
	Other income (1)	1,331			790				2,121
	Total (2)	243,254			31,532				274,786
	Provision for losses	45,851			—				45,851
	Policy acquisition costs	7,750			—				7,750
	Direct cost of services	—			18,451				18,451
	Other operating expenses before corporate allocations (3)	34,050			9,659				43,709
	Total (4)	87,651			28,110				115,761
	Adjusted pretax operating income before corporate allocations	155,603			3,422				159,025
	Allocation of corporate operating expenses (1)	9,758			981				10,739
	Allocation of interest expense (1)	19,953			4,432				24,385
	Adjusted pretax operating income (loss)	$	125,892		$	(1,991	)		$	123,901
	Cash and investments	$	3,669,413		$	9,437			$	3,678,850
	Restricted cash	11,348			2,872				14,220
	Goodwill	—			194,246				194,246
	Other intangible assets, net	—			99,552				99,552
	Assets held for sale (5)	—			—				1,755,873
	Total assets (5)	4,708,744			349,238				6,813,855
	Unearned premiums	657,555			—				657,555
	Reserve for losses and LAE	1,384,714			—				1,384,714
	NIW (in millions)	$	9,385
	____________
	-1	Includes certain corporate income and expenses that have been reallocated to the Mortgage Insurance segment that were previously allocated to the former financial guaranty segment, but were not reclassified to discontinued operations. These items include net investment income of $0.9 million, corporate overhead expenses of $2.1 million and interest expense of $9.9 million.
	-2	Excludes net gains on investments and other financial instruments of $16.8 million, not included in adjusted pretax operating income. Includes inter-segment revenues of $0.9 million in the Services segment.
	-3	Excludes $0.2 million of acquisition-related expenses not included in segment other operating expenses.
	-4	Includes inter-segment expenses of $0.9 million in the Mortgage Insurance segment.
	-5	Assets held for sale are not part of the Mortgage Insurance or Services segments.
		Three Months Ended March 31, 2014
	(In thousands)	Mortgage Insurance			Services				Total
	Net premiums written—insurance	$	212,953		$	—			$	212,953
	Increase in unearned premiums	(14,191		)	—				(14,191		)
	Net premiums earned—insurance	198,762			—				198,762
	Net investment income (1)	15,318			—				15,318
	Other income (1)	996			130				1,126
	Total (2)	215,076			130				215,206
	Provision for losses	49,626			—				49,626
	Change in expected economic loss or recovery for consolidated VIEs	139			—				139
	Policy acquisition costs	7,017			—				7,017
	Other operating expenses before corporate allocations	37,764			859				38,623
	Total	94,546			859				95,405
	Adjusted pretax operating income (loss) before corporate allocations	120,530			(729		)		119,801
	Allocation of corporate operating expenses (1)	15,884			—				15,884
	Allocation of interest expense (1)	19,927			—				19,927
	Adjusted pretax operating income (loss)	$	84,719		$	(729	)		$	83,990
	Cash and investments	$	3,302,763		$	24			$	3,302,787
Restricted cash	22,366			—				22,366
Goodwill	—			2,095				2,095
Other intangible assets, net	—			188				188
Assets held for sale (3)	—			—				1,795,185
Total assets (3)	3,731,139			2,661				5,528,985
Unearned premiums	580,453			—				580,453
Reserve for losses and LAE	1,893,960			—				1,893,960
NIW (in millions)	$	6,808
________________
-1	Includes certain corporate income and expenses that have been reallocated to the Mortgage Insurance segment that were previously allocated to the former financial guaranty segment, but were not reclassified to discontinued operations. These items include net investment income of $1.3 million, other income of $0.1 million, corporate overhead expenses of $4.1 million and interest expense of $14.6 million.
-2	Excludes net gains on investments and other financial instruments of $43.1 million, not included in adjusted pretax operating income.
-3	Assets held for sale are not part of the Mortgage Insurance or Services segments.
The reconciliation of adjusted pretax operating income to consolidated pretax income from continuing operations is as follows:
	Three Months Ended
	March 31,
(In thousands)	2015			2014
Adjusted pretax operating income (loss):
Mortgage Insurance (1) (2)	$	125,892		$	84,719
Services (3)	(1,991		)	(729		)
Total adjusted pretax operating income	123,901			83,990
Net gains on investments and other financial instruments	16,779			43,107			-4
Acquisition-related expenses	(207		)	—
Amortization and impairment of intangible assets	(3,023		)	—
Consolidated pretax income from continuing operations	$	137,450		$	127,097
______________
-1	Includes certain corporate income and expenses that have been reallocated to the Mortgage Insurance segment for all periods presented, as listed in the preceding detailed tables. These amounts represent items that were previously allocated to the former financial guaranty segment, but were not reclassified to discontinued operations.
-2	Includes inter-segment expenses of $0.9 million for the three months ended March 31, 2015.
-3	Includes inter-segment revenues of $0.9 million for the three months ended March 31, 2015.
-4	The change in expected economic loss or recovery associated with our consolidated VIEs is included in adjusted pretax operating income above. Therefore, for purposes of this reconciliation, net gains on investments and other financial instruments has been adjusted by $0.1 million for the three months ended March 31, 2014 to reverse this item, which represents an amount that is not included in net income.
On a consolidated basis, “adjusted pretax operating income (loss)” is a measure not determined in accordance with GAAP. Total adjusted pretax operating income (loss) is not a measure of total profitability, and therefore should not be viewed as a substitute for GAAP pretax income (loss). Our definition of adjusted pretax operating income (loss) may not be comparable to similarly-named measures reported by other companies.

Note_4_Fair_Value_of_Financial

Note 4 - Fair Value of Financial Instruments (Notes)	3 Months Ended
	Mar. 31, 2015
Fair Value Disclosures [Abstract]
Fair Value of Financial Instruments	Fair Value of Financial Instruments
	Available for sale securities, trading securities and certain other assets are recorded at fair value. All changes in the fair value of trading securities and certain other assets are included in our condensed consolidated statements of operations. All changes in the fair value of available for sale securities are recorded in AOCI. There were no significant changes to our fair value methodologies during the three months ended March 31, 2015.
	In accordance with GAAP, we established a three-level valuation hierarchy for disclosure of fair value measurements based on the transparency of inputs to the valuation of an asset or liability as of the measurement date. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level I measurements) and the lowest priority to unobservable inputs (Level III measurements). The level in the fair value hierarchy within which the fair value measurement falls is determined based on the lowest level input that is significant to the measurement in its entirety. The three levels of the fair value hierarchy are defined below:
	Level I	—    Unadjusted quoted prices for identical assets or liabilities in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities;
	Level II	—    Prices or valuations based on observable inputs other than quoted prices in active markets for identical assets and liabilities; and
	Level III	—    Prices or valuations that require inputs that are both significant to the fair value measurement and unobservable. Level III inputs are used to measure fair value only to the extent that observable inputs are not available.
	The level of market activity used to determine the fair value hierarchy is based on the availability of observable inputs market participants would use to price an asset or a liability, including market value price observations. We provide a qualitative description of the valuation techniques and inputs used for Level II recurring and non-recurring fair value measurements in our audited annual financial statements as of December 31, 2014. For a complete understanding of those valuation techniques and inputs used as of March 31, 2015, these unaudited condensed consolidated financial statements should be read in conjunction with the audited annual financial statements and notes thereto included in our 2014 Form 10-K.
	The following is a list of those assets that are measured at fair value by hierarchy level as of March 31, 2015:
	(In millions)	Level I		Level II			Total
	Assets at Fair Value
	Investment Portfolio:
	U.S. government and agency securities	$	630.6	$	3		$	633.6
	State and municipal obligations	—		353			353
	Money market instruments	601.3		—			601.3
	Corporate bonds and notes	—		1,115.00			1,115.00
	RMBS	—		128.1			128.1
	CMBS	—		247.9			247.9
	Other ABS	—		177.6			177.6
	Foreign government and agency securities	—		35.3			35.3
	Equity securities (1)	162.6		52.2			214.8
	Other investments (2)	—		101			101
	Total Investments at Fair Value (3)	1,394.50		2,213.10			3,607.60
	Total Assets at Fair Value	$	1,394.50	$	2,213.10		$	3,607.60
	______________________
	-1	Comprising broadly diversified domestic equity mutual funds and certain common stocks included within Level I and various preferred stocks invested across numerous companies and industries included within Level II.
	-2	Comprising short-term certificates of deposit ($1.0 million) and short-term commercial paper ($100.0 million) included within Level II.
	-3	Does not include certain other invested assets ($14.0 million), primarily invested in limited partnerships, accounted for as cost-method investments and not measured at fair value. Also excludes investments classified as assets held for sale of $502.1 million, $838.0 million and $102.8 million, with fair values categorized in Level I, Level II and Level III, respectively.
	At March 31, 2015, there were no Level III assets other than those classified as assets held for sale.
	The following is a list of those assets that are measured at fair value by hierarchy level as of December 31, 2014:
	(In millions)	Level I		Level II			Total
	Assets at Fair Value
	Investment Portfolio:
	U.S. government and agency securities	$	836.9	$	3		$	839.9
	State and municipal obligations	—		362.8			362.8
	Money market instruments	600.3		—			600.3
	Corporate bonds and notes	—		992.8			992.8
	RMBS	—		132.3			132.3
	CMBS	—		246.8			246.8
	Other ABS	—		185.5			185.5
	Foreign government and agency securities	—		37.7			37.7
	Equity securities (1)	164		51.6			215.6
	Other investments (2)	—		1			1
	Total Investments at Fair Value (3)	1,601.20		2,013.50			3,614.70
	Total Assets at Fair Value	$	1,601.20	$	2,013.50		$	3,614.70
	______________________
	-1	Comprising broadly diversified domestic equity mutual funds and certain common stocks included within Level I and various preferred stocks invested across numerous companies and industries included within Level II.
	-2	Comprising short-term certificates of deposit.
	-3	Does not include certain other invested assets ($14.6 million), primarily invested in limited partnerships, accounted for as cost-method investments and not measured at fair value. Also excludes investments classified as assets held for sale of $495.1 million, $839.2 million and $102.6 million, with fair values categorized in Level I, Level II and Level III, respectively.
	At December 31, 2014, there were no Level III assets other than those classified as assets held for sale, and total Level III liabilities of $3.8 million accounted for 100% of total liabilities measured at fair value.
	There were no transfers between Level I and Level II for the three months ended March 31, 2015 or 2014.
	Other Fair Value Disclosure
	The carrying value and estimated fair value of other selected assets and liabilities not carried at fair value on our condensed consolidated balance sheets were as follows as of the dates indicated:
		March 31, 2015					December 31, 2014
	(In millions)	Carrying		Estimated			Carrying		Estimated
		Amount		Fair Value			Amount		Fair Value
	Assets:
	Other invested assets	$	14	$	20.7	-1	$	14.6	$	20.5	-1
	Liabilities:
	Long-term debt	1,219.00		1,862.10		-1	1,209.90		1,859.30		-1
	______________________
	-1	These estimated fair values would be classified in Level II of the fair value hierarchy.

Note_5_Investments_Notes

Note 5 - Investments (Notes)	3 Months Ended
	Mar. 31, 2015
Investments [Abstract]
Investments	Investments
	Our available for sale securities within our investment portfolio consisted of the following as of the dates indicated:
		March 31, 2015
	(In thousands)	Amortized			Fair Value			Gross		Gross
		Cost						Unrealized		Unrealized
								Gains		Losses
	Fixed-maturities available for sale:
	U.S. government and agency securities	$	5,727		$	5,783		$	56	$	—
	State and municipal obligations	17,698			18,971			1,273		—
	Corporate bonds and notes	402,308			415,333			13,636		611
	RMBS	40,334			41,845			1,511		—
	CMBS	67,194			69,373			2,181		2
	Other ABS	122,605			122,237			559		927
	Foreign government and agency securities	21,174			21,543			576		207
		677,040			695,085			19,792		1,747
	Equity securities available for sale (1)	76,900			143,533			66,633		—
	Total debt and equity securities	$	753,940		$	838,618		$	86,425	$	1,747
	______________________
	-1	Comprising broadly diversified domestic equity mutual funds ($143.1 million fair value) and a preferred stock investment in Freddie Mac ($0.4 million fair value).
		December 31, 2014
	(In thousands)	Amortized			Fair Value			Gross		Gross
		Cost						Unrealized		Unrealized
								Gains		Losses
	Fixed-maturities available for sale:
	U.S. government and agency securities	$	5,709		$	5,751		$	48	$	6
	State and municipal obligations	17,727			18,910			1,183		—
	Corporate bonds and notes	277,678			284,408			7,288		558
	RMBS	41,467			42,520			1,053		—
	CMBS	57,358			58,234			876		—
	Other ABS	109,420			107,701			8		1,727
	Foreign government and agency securities	19,301			19,366			307		242
		528,660			536,890			10,763		2,533
	Equity securities available for sale (1)	76,900			143,368			66,468		—
	Total debt and equity securities	$	605,560		$	680,258		$	77,231	$	2,533
	______________________
	-1	Comprising broadly diversified domestic equity mutual funds ($143.0 million fair value) and a preferred stock investment in Freddie Mac ($0.4 million fair value).
	The “trading securities” within our investment portfolio, which are recorded at fair value, consisted of the following as of the dates indicated:
	(In thousands)	March 31,			December 31,
		2015			2014
	Trading securities:
	U.S. government and agency securities	$	135,801		$	134,530
	State and municipal obligations	334,052			343,926
	Corporate bonds and notes	699,621			708,361
	RMBS	86,294			89,810
	CMBS	178,563			188,615
	Other ABS	55,386			77,755
	Foreign government and agency securities	13,731			18,331
	Equity securities	71,347			72,256
	Total	$	1,574,795		$	1,633,584
	For trading securities held at March 31, 2015 and December 31, 2014, we had net unrealized gains during the three months ended March 31, 2015 and the year ended December 31, 2014 associated with those securities of $18.8 million and $65.7 million, respectively.
	For the three months ended March 31, 2015, we did not transfer any securities from the available for sale or trading categories.
	Net realized and unrealized gains (losses) on investments and other financial instruments consisted of:
		Three Months Ended March 31,
	(In thousands)	2015			2014
	Net realized gains (losses):
	Fixed-maturities held to maturity	$	—		$	(9	)
	Fixed-maturities available for sale	(51		)	5
	Trading securities	(4,568		)	(4,351		)
	Other	105			10
	Net realized losses on investments	(4,514		)	(4,345		)
	Unrealized gains on trading securities	20,701			47,631
	Total net gains on investments	16,187			43,286
	Net gains (losses) on other financial instruments	592			(318		)
	Net gains on investments and other financial instruments	$	16,779		$	42,968
The following tables show the gross unrealized losses and fair value of our securities deemed “available for sale” aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position, as of the dates indicated:
March 31, 2015: ($ in thousands) Description of Securities		Less Than 12 Months							12 Months or Greater						Total
		# of		Fair Value			Unrealized		# of		Fair Value		Unrealized		# of	Fair Value		Unrealized
		securities					Losses		securities				Losses		securities			Losses
Corporate bonds and notes		22		$	41,307		$	445	1		$	1,024	$	166	23	$	42,331	$	611
CMBS		1		2,057			2		—		—		—		1	2,057		2
Other ABS		21		54,604			817		2		8,418		110		23	63,022		927
Foreign government and agency securities		5		4,706			207		—		—		—		5	4,706		207
Total		49		$	102,674		$	1,471	3		$	9,442	$	276	52	$	112,116	$	1,747
December 31, 2014: ($ in thousands) Description of Securities		Less Than 12 Months							12 Months or Greater						Total
		# of		Fair Value			Unrealized		# of		Fair Value		Unrealized		# of	Fair Value		Unrealized
		securities					Losses		securities				Losses		securities			Losses
U.S. government and agency securities		—		$	—		$	—	1		$	3,455	$	6	1	$	3,455	$	6
Corporate bonds and notes		24		40,917			410		1		1,027		148		25	41,944		558
Other ABS		34		97,356			1,727		—		—		—		34	97,356		1,727
Foreign government and agency securities		4		6,353			242		—		—		—		4	6,353		242
Total		62		$	144,626		$	2,379	2		$	4,482	$	154	64	$	149,108	$	2,533
During the first three months of 2015 and 2014, we did not recognize in earnings any impairment losses related to credit deterioration.
Although we held securities in an unrealized loss position as of March 31, 2015, we did not consider them to be other-than-temporarily impaired as of such date. For all investment categories, the unrealized losses of 12 months or greater duration as of March 31, 2015, were generally caused by interest rate or credit spread movements since the purchase date. As of March 31, 2015, we estimated that the present value of cash flows expected to be collected from these securities would be sufficient to recover the amortized cost basis of these securities. As of March 31, 2015, we did not have the intent to sell any debt securities in an unrealized loss position, and we determined that it is more likely than not that we will not be required to sell the securities before recovery of their cost basis, which may be at maturity; therefore, we did not consider these investments to be other-than-temporarily impaired at March 31, 2015.
The contractual maturities of fixed-maturity investments are as follows:
	March 31, 2015
	Available for Sale
(In thousands)	Amortized			Fair
	Cost			Value
Due in one year or less (1)	$	2,262		$	2,297
Due after one year through five years (1)	44,413			44,741
Due after five years through ten years (1)	257,586			263,269
Due after ten years (1)	142,646			151,323
RMBS (2)	40,334			41,845
CMBS (2)	67,194			69,373
Other ABS (2)	122,605			122,237
Total	$	677,040		$	695,085
______________________
-1	Actual maturities may differ as a result of calls before scheduled maturity.
-2	RMBS, CMBS, and Other ABS are shown separately, as they are not due at a single maturity date.
At March 31, 2015 and December 31, 2014, Radian Guaranty had $210.3 million and $209.3 million, respectively, in a collateral account pursuant to the Freddie Mac Agreement. These investments, which are primarily invested in trading securities, are pledged to cover Loss Mitigation Activity on the loans subject to that agreement. Subject to certain conditions in the Freddie Mac Agreement, amounts in the collateral account may be released to Radian Guaranty over time to the extent that Loss Mitigation Activity becomes final in accordance with the terms of the Freddie Mac Agreement. However, if the amount of Loss Mitigation Activity that becomes final in accordance with the Freddie Mac Agreement is less than $205 million prior to the termination of the Freddie Mac Agreement, then any shortfall will be paid to Freddie Mac from the funds in the collateral account. From the time the collateral account was established through March 31, 2015, approximately $122 million of Loss Mitigation Activity had become final in accordance with the Freddie Mac Agreement and approximately $18 million of submitted claims had been rescinded, denied, curtailed or cancelled, but were not yet considered final in accordance with the Freddie Mac Agreement.

Note_6_Goodwill_and_Other_Inta

Note 6 - Goodwill and Other Intangible Assets, Net (Notes)	3 Months Ended
	Mar. 31, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets Disclosure	Goodwill and Other Intangible Assets, Net
	The following table shows the changes in the carrying amount of goodwill, all of which relates to our Services segment, as of and for the year-to-date periods ended March 31, 2015 and December 31, 2014:
		Services
	(In thousands)	March 31, 2015			December 31, 2014
	Balance at beginning of period:
	Goodwill	$	194,027		$	2,095
	Accumulated impairment losses	(2,095		)	—
	Goodwill, net	191,932			2,095
	Goodwill acquired during the period	2,314			191,932
	Impairment losses	—			(2,095		)
	Balance at end of period:
	Goodwill	196,341			194,027
	Accumulated impairment losses	(2,095		)	(2,095		)
	Goodwill, net	$	194,246		$	191,932
	During the first quarter of 2015, Clayton further expanded its service offerings by acquiring a real estate brokerage company that provides products and services that include automated valuation models; broker price opinions used by investors, lenders and loan servicers; and advanced technology solutions for: (1) monitoring loan portfolio performance; (2) tracking non-performing loans; (3) managing REO assets; and (4) valuing residential real estate through a secure platform. The acquisition did not meet the criteria to be considered a material business combination. The transaction was treated as a purchase for accounting purposes, with the excess of the acquisition price over the estimated fair value of the net assets acquired resulting in goodwill of $2.3 million. The goodwill represents the estimated future economic benefits arising from the assets acquired that did not qualify to be identified and recognized individually, and includes the value of the discounted expected future cash flows, the workforce, expected synergies with our other affiliates and other unidentifiable intangible assets. Goodwill is deemed to have an indefinite useful life and is subject to review for impairment annually, or more frequently, whenever circumstances indicate potential impairment. Our goodwill balance at March 31, 2015 relates entirely to our Clayton acquisitions.
	The following is a summary of the gross and net carrying amounts and accumulated amortization of our other intangible assets as of and for the year-to-date periods indicated:
		As of March 31, 2015
	(In thousands)	Gross Carrying Amount			Accumulated Amortization			Net Carrying Amount
	Client relationships	$	83,016		$	(4,884	)	$	78,132
	Technology	10,940			(1,189		)	9,751
	Trademark	8,300			(591		)	7,709
	Client backlog	6,680			(2,850		)	3,830
	Non-competition agreements	185			(55		)	130
	Total	$	109,121		$	(9,569	)	$	99,552
		As of December 31, 2014
		Gross Carrying Amount			Accumulated Amortization			Net Carrying Amount
	Client relationships	$	79,203		$	(2,917	)	$	76,286
	Technology	8,970			(797		)	8,173
	Trademark	7,860			(393		)	7,467
	Client backlog	6,680			(2,406		)	4,274
	Non-competition agreements	145			(37		)	108
	Total	$	102,858		$	(6,550	)	$	96,308
	The estimated aggregate amortization expense for the remainder of 2015 and thereafter is as follows (in thousands):
	2015	$	9,824
	2016	12,553
	2017	11,911
	2018	11,280
	2019	10,044
	2020	8,492
	Thereafter	35,448
	For tax purposes, substantially all of our goodwill and other intangible assets are expected to be deductible and will be amortized over a period of 15 years.

Note_7_Reinsurance

Note 7 - Reinsurance	3 Months Ended
	Mar. 31, 2015
Reinsurance Disclosures [Abstract]
Reinsurance	Reinsurance
	The effect of reinsurance on net premiums written and earned is as follows:
		Three Months Ended
		March 31,
	(In thousands)	2015			2014
	Net premiums written-insurance:
	Direct	$	255,248		$	229,322
	Assumed	47			473
	Ceded	(13,387		)	(16,089		)
	Net premiums written-insurance	$	241,908		$	213,706
	Net premiums earned-insurance:
	Direct	$	242,164		$	215,876
	Assumed	13			12
	Ceded	(17,582		)	(17,126		)
	Net premiums earned-insurance	$	224,595		$	198,762
	In 2012, Radian Guaranty entered into two separate QSR agreements with a third-party reinsurance provider. As of March 31, 2015, RIF ceded under the Initial QSR Transaction and the Second QSR Transaction was $1.1 billion and $1.5 billion, respectively.
	The following tables show the amounts related to the QSR Reinsurance Transactions for the periods indicated:
		Initial QSR Transaction
		Three Months Ended
		March 31,
	(In thousands)	2015			2014
	Ceded premiums written	$	4,067		$	5,304
	Ceded premiums earned	6,018			6,807
	Ceding commissions written	880			1,326
		Second QSR Transaction
		Three Months Ended
		March 31,
	(In thousands)	2015			2014
	Ceded premiums written	$	6,529		$	7,293
	Ceded premiums earned	8,768			6,585
	Ceding commissions written	2,285			2,553
	Radian Guaranty has ceded the maximum amount permitted under the QSR Reinsurance Transactions (up to $1.6 billion of ceded RIF for each); therefore, Radian Guaranty is no longer ceding NIW under these transactions. Effective January 1, 2015, the ceding commission was reduced from 25% to 20% for two-thirds of the reinsurance ceded under the Initial QSR Transaction. Ceded losses to date under the QSR Reinsurance Transactions have been immaterial.

Note_8_Other_Assets_Notes

Note 8. Other Assets (Notes)	3 Months Ended
	Mar. 31, 2015
Other Assets [Abstract]
Other Assets Disclosure [Text Block]	Other Assets
	The following table shows the components of other assets for the periods indicated:
	(In thousands)	March 31,		December 31,
		2015		2014
	Deposit with the IRS (See Note 12)	$	88,557	$	88,557
	Corporate-owned life insurance	81,367		80,755
	Prepaid reinsurance premiums	53,088		57,291
	Property and equipment (1)	28,875		27,248
	Accrued investment income	18,846		20,022
	Reinsurance recoverables	15,155		28,119
	Deferred policy acquisition costs	10,013		12,003
	Other	60,812		61,496
	Total other assets	$	356,713	$	375,491
	______________________
	-1	Property and equipment, at cost less accumulated depreciation of $101.6 million and $100.2 million at March 31, 2015 and December 31, 2014, respectively.

Note_9_Losses_and_LAE_Notes

Note 9 - Losses and LAE (Notes)	3 Months Ended
	Mar. 31, 2015
Insurance Loss Reserves [Abstract]
Losses and LAE	Losses and Loss Adjustment Expense
	The following table shows our mortgage insurance reserve for losses and LAE by category at the end of each period indicated:
	(In thousands)	March 31,			December 31,
		2015			2014
	Reserves for losses by category:
	Prime	$	640,919		$	700,174
	Alt-A	278,350			292,293
	A minus and below	163,390			179,103
	IBNR and other	167,204			223,114
	LAE	53,210			56,164
	Reinsurance recoverable (1)	13,365			26,665
	Total primary reserves	1,316,438			1,477,513
	Pool	62,943			75,785
	IBNR and other	1,227			1,775
	LAE	3,051			3,542
	Total pool reserves	67,221			81,102
	Total First-lien reserves	1,383,659			1,558,615
	Second-lien and other (2)	1,055			1,417
	Total reserve for losses	$	1,384,714		$	1,560,032
	______________________
	-1	Primarily represents ceded losses on captive transactions and the QSR Reinsurance Transactions.
	-2	Does not include our Second-lien PDR that is included in other liabilities.
	The following table presents information relating to our mortgage insurance reserves for losses, including IBNR reserves and LAE but excluding Second-lien PDR, for the periods indicated:
		Three Months Ended
		March 31,
	(In thousands)	2015			2014
	Mortgage Insurance
	Balance at beginning of period	$	1,560,032		$	2,164,353
	Less reinsurance recoverables (1)	26,665			38,363
	Balance at beginning of period, net of reinsurance recoverables	1,533,367			2,125,990
	Add losses and LAE incurred in respect of default notices reported and unreported in:
	Current year (2)	80,437			108,849			-3
	Prior years	(35,360		)	(59,689		)	-3
	Total incurred	45,077			49,160
	Deduct paid claims and LAE related to:
	Current year (2)	—			—
	Prior years	207,095			306,941
	Total paid	207,095			306,941
	Balance at end of period, net of reinsurance recoverables	1,371,349			1,868,209
	Add reinsurance recoverables (1)	13,365			25,751
	Balance at end of period	$	1,384,714		$	1,893,960
	_________________________
	-1	Related to ceded losses on captive reinsurance transactions and the QSR Reinsurance Transactions. See Note 7 for additional information.
	-2	Related to underlying defaulted loans with a most recent default notice dated in the year indicated. For example, if a loan had defaulted in a prior year, but then subsequently cured and later re-defaulted in the current year, that default would be considered a current year default.
	-3	Amounts previously reported for losses and LAE incurred in respect of default notices reported and unreported in current year and prior years have been reclassified to correct an error. There was no net change to total incurred losses in any period as a result of these reclassifications. For the three months ended March 31, 2014, the amounts previously reported for losses and LAE incurred in respect of default notices reported and unreported in current year have been revised downward by approximately $33.8 million, with an equal and offsetting adjustment to the amount previously reported for default notices reported and unreported in prior years. For the years ended December 31, 2014, 2013 and 2012, the amounts previously reported related to losses and LAE incurred from current year default notices should have been lower by approximately $71.8 million, $65.0 million and $75.7 million, respectively, with equal and offsetting adjustments to the incurred loss amounts related to prior years’ default notices.
	Our mortgage insurance loss reserves declined for the three months ended March 31, 2015, primarily as a result of the aggregate volume of paid claims, Cures, Rescissions and Claim Denials exceeding new default notices received. Reserves established for new default notices were the primary driver of our total incurred loss for the first three months of 2015. The impact to incurred losses from default notices reported in the first quarter of 2015 was partially mitigated by favorable reserve development on prior year defaults, which was driven primarily by a reduction in certain Default to Claim Rate assumptions, as well as by higher Cures than were previously estimated. We experienced similar favorable development related to incurred losses from prior year defaults during the first three months of 2014. Our results for the three months ended March 31, 2015 also include the impact of the BofA Settlement Agreement, as described below.
	Total paid claims decreased for the three months ended March 31, 2015 compared to the comparable period in 2014, primarily due to the overall decline in defaulted loans and the ongoing reduction in pending claims. Claims paid for the three months ended March 31, 2015 include $98.5 million related to the implementation of the BofA Settlement Agreement.
	Our aggregate weighted average Default to Claim Rate assumption (net of Claim Denials and Rescissions) used in estimating our primary reserve for losses has remained relatively stable at 53% (47% excluding pending claims) at March 31, 2015, compared to 52% at December 31, 2014. The change in our Default to Claim Rate resulted from an increase in Cures of defaults with lower Default to Claim Rates, which resulted in an increase in remaining defaults having higher Default to Claim Rates. We develop our Default to Claim Rate estimates on defaulted loans based on models that use a variety of loan characteristics to determine the likelihood that a default will reach claim status. Our Default to Claim Rate estimates on defaulted loans are mainly developed based on the Stage of Default and Time in Default of the underlying defaulted loans, as measured by the progress toward foreclosure sale and the number of months in default. During the three months ended March 31, 2015, we reduced our gross Default to Claim Rate assumption for new primary defaults from 16% to 15% due to continued improvement in actual claim development trends. As of March 31, 2015, our gross Default to Claim Rates on our primary portfolio ranged from 15% for new defaults, to 65% for defaults not in Foreclosure Stage, and 81% for Foreclosure Stage Defaults. Our estimate of expected Rescissions and Claim Denials (net of expected reinstatements) embedded in our Default to Claim Rate is generally based on our experience over the past year, with consideration given for differences in characteristics between those rescinded policies and denied claims and the loans remaining in our defaulted inventory, as well as the estimated impact of the BofA Settlement Agreement.
	The following table illustrates the amount of First-lien claims submitted to us for payment that were rescinded or denied, for the periods indicated, net of any reinstatements of previous Rescissions or Claim Denials within each period. Net (reinstatements), Rescissions or Claim Denials related to the BofA Settlement Agreement prior to the February 1, 2015 Implementation Date represent such activities on loans that subsequently became subject to the BofA Settlement Agreement.
		Three Months Ended
		March 31,
	(In millions)	2015			2014
	Rescissions	$	3.8		$	6.4
	Claim Denials	5.6			18.9
	Net (reinstatements), Rescissions or Claim Denials related to the BofA Settlement Agreement	(24.1		)	3
	Net First-lien claims submitted for payment that were (reinstated), rescinded or denied (1)	$	(14.7	)	$	28.3
	______________________
	-1	Includes an amount related to a small number of submitted claims that were subsequently withdrawn by the insured.
	Although our estimates of future Rescissions and Claim Denials have been declining, they remain elevated compared to levels experienced before 2009. The elevated levels of our rate of Rescissions and Claim Denials have reduced our paid losses and have resulted in a reduction in our loss reserves. Our estimate of net future Rescissions and Claim Denials reduced our loss reserves as of March 31, 2015 and December 31, 2014 by approximately $115 million and $125 million, respectively. The amount of estimated Rescissions and Claim Denials incorporated into our reserve analysis at any point in time is affected by a number of factors, including not only our estimated rate of Rescissions and Claim Denials on future claims, but also the volume and attributes of our defaulted insured loans, our estimated Default to Claim Rate and our estimated Claim Severity, among other assumptions. As of March 31, 2015, these assumptions also reflect the estimated impact of the BofA Settlement Agreement, as further discussed below.
	As our Legacy Portfolio has become a smaller percentage of our overall insured portfolio, we have undertaken a reduced amount of Loss Mitigation Activity with respect to the claims we receive, and we expect this trend to continue. As a result, our future Loss Mitigation Activity is not expected to mitigate our paid losses to the same extent as in recent years.
	Our reported Rescission and Claim Denial activity in any given period is subject to challenge by our lender and servicer customers. We expect that a portion of previous Rescissions will be reinstated and previous Claim Denials will be resubmitted with the required documentation and ultimately paid; therefore, we have incorporated this expectation into our IBNR reserve estimate. Our IBNR reserve estimate was $108.6 million and $163.6 million at March 31, 2015 and December 31, 2014, respectively. As of March 31, 2015, the IBNR reserve estimate of $108.6 million included approximately $85.2 million for loans subject to the BofA Settlement Agreement. This amount compares to approximately $133.0 million in IBNR reserves for loans subject to the BofA Settlement Agreement as of December 31, 2014. The significant decrease in our IBNR reserve estimate at March 31, 2015 as compared to December 31, 2014, reflects the implementation of the BofA Settlement Agreement that commenced on February 1, 2015, including the reinstatement and payment during the period of certain previous Rescissions and Claim Denials. The remaining IBNR reserve estimate as of March 31, 2015 included an estimate of future reinstatements of previous Claim Denials, Rescissions and Claim Curtailments of $13.6 million, $0.8 million, and $3.4 million, respectively. These reserves relate to $85.5 million of claims that were denied within the preceding 12 months, $79.8 million of policies rescinded within the preceding 24 months, and $44.4 million of Claim Curtailments within the preceding 24 months.
	We also accrue for the premiums that we expect to refund to our lender customers in connection with our estimated Rescission activity. Our accrued liability for such refunds, which is included within other liabilities on our condensed consolidated balance sheets, was $7.2 million and $9.0 million as of March 31, 2015 and December 31, 2014, respectively.
	BofA Settlement Agreement
	On September 16, 2014, Radian Guaranty entered into a Confidential Settlement Agreement and Release (the “BofA Settlement Agreement”) with Countrywide Home Loans, Inc. and Bank of America, N.A. (together, the “Insureds”), as a successor to BofA Home Loan Servicing f/k/a Countrywide Home Loans Servicing LP, in order to resolve various actual and potential claims or disputes related to the parties’ respective rights and duties as to mortgage insurance coverage on certain Subject Loans.
Implementation of the BofA Settlement Agreement commenced on February 1, 2015 for Subject Loans held in portfolio by the Insureds or purchased by the GSEs on that date. Approximately 12% of the Subject Loans are neither held in portfolio by the Insureds nor owned by the GSEs, and require the consent of certain other investors for these loans to be included in the BofA Settlement Agreement, except with respect to certain limited rights of cancellation. While we can provide no assurance whether one or more of the other investors will consent to have their Subject Loans included in the settlement, for purposes of the reserve established for the BofA Settlement Agreement we have assumed that these investors will provide consent. The contractual deadline for such consent has been extended to June 1, 2015. To the extent that one or more of the other investors do not consent to the settlement, the associated Loss Mitigation Activities would not be reinstated under the terms of the BofA Settlement Agreement and the portion of the reserve related to such non-consenting investors would be reversed. See Note 10 of Notes to Consolidated Financial Statements in our 2014 Form 10-K for additional information about the BofA Settlement Agreement.

Note_10_LongTerm_Debt_Notes

Note 10 - Long-Term Debt (Notes)	3 Months Ended
	Mar. 31, 2015
Long-term Debt, Unclassified [Abstract]
Long-term Debt	Long-Term Debt
	The carrying value of our long-term debt at March 31, 2015 and December 31, 2014 was as follows:
	(In thousands)		March 31,			December 31,
			2015			2014
	9.00%	Senior Notes due 2017	$	192,870		$	192,605
	3.00%	Convertible Senior Notes due 2017 (1)	381,018			375,310
	2.25%	Convertible Senior Notes due 2019 (2)	345,084			342,011
	5.50%	Senior Notes due 2019	300,000			300,000
		Total long-term debt	$	1,218,972		$	1,209,926
	_______________________
	-1	The principal amount of these notes is $450 million.
	-2	The principal amount of these notes is $400 million.
	Convertible Senior Notes due 2017 and 2019
	During the three-month period ended March 31, 2015, our closing stock price exceeded the thresholds required for the holders of our Convertible Senior Notes due 2017 and our Convertible Senior Notes due 2019 to be able to exercise their conversion rights during the three-month period ending June 30, 2015. In any period when holders of the Convertible Senior Notes due 2017 are eligible to exercise their conversion option, the equity component related to these instruments is classified as mezzanine (temporary) equity, because we are required to settle the aggregate principal amount of the notes in cash. If in any future period the conversion threshold requirements of our Convertible Senior Notes due 2017 are not met, then the difference between (1) the amount of cash deliverable upon conversion (i.e., par value of debt) and (2) the carrying value of the debt component will be reclassified from mezzanine equity to permanent equity, and will continue to be reported as permanent equity for any period in which the debt is not currently convertible. Our conversion obligation for the Convertible Senior Notes due 2019 may be satisfied by paying or delivering, as the case may be, cash, shares of our common stock or a combination of cash and shares of common stock, at our election.
	Issuance and transaction costs incurred at the time of the issuance of the convertible notes are allocated to the liability and equity components in proportion to the allocation of proceeds and are accounted for as debt issuance costs and equity issuance costs, respectively. The convertible notes are reflected on our condensed consolidated balance sheets as follows:
		Convertible Senior Notes due 2017						Convertible Senior Notes due 2019
	(In thousands)	March 31,			December 31,			March 31,			December 31,
		2015			2014			2015			2014
	Liability component:
	Principal	$	450,000		$	450,000		$	400,000		$	400,000
	Less: Debt discount, net (1)	(68,982		)	(74,690		)	(54,916		)	(57,989		)
	Net carrying amount	$	381,018		$	375,310		$	345,084		$	342,011
	Equity component of currently redeemable convertible senior notes	$	68,982		$	74,690		$	—		$	—
	__________________
	-1	Included within long-term debt and is being amortized over the life of the convertible notes.
	The following tables set forth total interest expense recognized related to the convertible notes for the periods indicated:
		Convertible Senior Notes due 2017
		Three Months Ended
		March 31,
	($ in thousands)	2015			2014
	Contractual interest expense	$	3,375		$	3,375
	Amortization of debt issuance costs	318			300
	Amortization of debt discount	5,708			5,186
	Total interest expense	$	9,401		$	8,861
	Effective interest rate of the liability component	9.75		%	9.75		%
		Convertible Senior Notes due 2019
		Three Months Ended
		March 31,
	($ in thousands)	2015			2014
	Contractual interest expense	$	2,250		$	2,250
	Amortization of debt issuance costs	328			316
	Amortization of debt discount	3,073			2,889
	Total interest expense	$	5,651		$	5,455
	Effective interest rate of the liability component	6.25		%	6.25		%

Note_11_Accumulated_Other_Comp

Note 11 - Accumulated Other Comprehensive Income	3 Months Ended
	Mar. 31, 2015
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Accumulated Other Comprehensive Income	Accumulated Other Comprehensive Income
	The following table shows the rollforward of AOCI as of the periods indicated:
		Three Months Ended March 31, 2015
	(In thousands)	Before Tax			Tax Effect			Net of Tax
	Balance at beginning of period	$	79,208		$	27,723		$	51,485
	Other comprehensive income (“OCI”):
	Net foreign currency translation adjustments	(194		)	(68		)	(126		)
	Unrealized gains on investments:
	Unrealized holding gains arising during the period	9,929			3,475			6,454
	Less: Reclassification adjustment for net losses included in net income (1)	(51		)	(18		)	(33		)
	Net unrealized gains on investments	9,980			3,493			6,487
	Net unrealized gains from investments recorded as assets held for sale	2,812			984			1,828
	OCI	12,598			4,409			8,189
	Balance at end of period	$	91,806		$	32,132		$	59,674
		Three Months Ended March 31, 2014
	(In thousands)	Before Tax			Tax Effect			Net of Tax
	Balance at beginning of period	$	57,345		$	19,962		$	37,383
	OCI:
	Unrealized gains on investments:
	Unrealized holding gains arising during the period	2,670			1			2,669
	Less: Reclassification adjustment for net gains included in net income (1)	5			1			4
	Net unrealized gains on investments	2,665			—			2,665
	Net unrealized gains from investments recorded as assets held for sale	1,175			(121		)	1,296
	OCI	3,840			(121		)	3,961
	Balance at end of period	$	61,185		$	19,841		$	41,344
	_________________________
	-1	Included in net gains on investments and other financial instruments on our condensed consolidated statements of operations.

Note_12_Income_Taxes_Notes

Note 12 - Income Taxes (Notes)	3 Months Ended
	Mar. 31, 2015
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes
	We provide for income taxes in accordance with the provisions of the accounting standard regarding accounting for income taxes. As required under this standard, our deferred tax assets (“DTAs”) and deferred tax liabilities (“DTLs”) are recognized under the balance sheet method, which recognizes the future tax effect of temporary differences between the amounts recorded in our condensed consolidated financial statements and the tax bases of these amounts. DTAs and DTLs are measured using the enacted tax rates expected to apply to taxable income in the periods in which the DTA or DTL is expected to be realized or settled.
	Our provision for income taxes for interim financial periods is based on an estimate of our annual effective tax rate for continuing operations for the full year. When estimating our full year 2015 and 2014 annual effective tax rate, we accounted for the tax effects of gains and losses on our investments, changes in the accounting for uncertainty in income taxes, and other adjustments discretely at the federal applicable tax rate. Our effective tax rate as of March 31, 2014 was also impacted by our full valuation allowance against our DTAs.
	For federal income tax purposes, we had approximately $1.5 billion of NOL carryforwards and $6.0 million of foreign tax credit carryforwards as of March 31, 2015. To the extent not utilized, the NOL carryforwards will expire during tax years 2028 through 2032 and the foreign tax credit carryforwards will expire during tax years 2018 through 2020. Certain entities within our consolidated group have also generated DTAs of approximately $33.5 million relating to state and local NOL carryforwards, which if unutilized, will expire during various future tax periods.
	We are required to establish a valuation allowance against our DTAs when it is more likely than not that all or some portion of our DTAs will not be realized. At each balance sheet date, we assess our need for a valuation allowance. Our assessment is based on all available evidence, both positive and negative. This requires management to exercise judgment and make assumptions regarding whether our DTAs will be realized in future periods. In making this assessment as of March 31, 2015, we determined that certain state and local NOLs, relating to non-insurance entities within our consolidated group, may not be realized during their appropriate carryforward period. Therefore, we have recorded a valuation allowance of approximately $18.3 million relating to these state and local NOL DTAs as of March 31, 2015.
	As previously disclosed, we are contesting adjustments resulting from the examination by the IRS of our 2000 through 2007 consolidated federal income tax returns. The IRS opposes the recognition of certain tax losses and deductions that were generated through our investment in a portfolio of non-economic REMIC residual interests and proposed adjustments denying the associated tax benefits of these items. We appealed these proposed adjustments to Appeals and made “qualified deposits” with the U.S. Treasury of approximately $85 million in June 2008 relating to the 2000 through 2004 tax years and approximately $4 million in May 2010 relating to the 2005 through 2007 tax years in order to avoid the accrual of above-market-rate interest with respect to the proposed adjustments.
	We made several attempts to reach a compromised settlement with Appeals, but in January 2013, we were notified that Appeals had rejected our latest settlement offer and planned to issue formal Notices of Deficiency related to certain losses and deductions resulting from our investment in a portfolio of REMIC residual interests. On September 4, 2014, we received Notices of Deficiency covering the 2000 through 2007 tax years that assert unpaid taxes and penalties of approximately $157 million. The Deficiency Amount has not been reduced to reflect our NOL carryback ability. As of March 31, 2015, there also would be interest of approximately $118 million related to these matters. Depending on the outcome, additional state income taxes, penalties and interest (estimated in the aggregate to be approximately $30 million as of March 31, 2015) also may become due when a final resolution is reached. The Notices of Deficiency also reflected additional amounts due of approximately $105 million, which are primarily associated with the disallowance of the previously filed carryback of our 2008 NOL to the 2006 and 2007 tax years. We believe that the disallowance of our 2008 NOL carryback is a precautionary position by the IRS and that we will ultimately maintain the benefit of this NOL carryback claim.
	On December 3, 2014, we petitioned the U.S. Tax Court to litigate the Deficiency Amount. The litigation could take several years to resolve and may result in substantial legal expenses. We can provide no assurance regarding the outcome of any such litigation or whether a compromised settlement with the IRS will ultimately be reached. We believe that an adequate provision for income taxes has been made for the potential liabilities that may result from this matter. However, if the ultimate resolution of this matter produces a result that differs materially from our current expectations, there could be a material impact on our effective tax rate, results of operations and cash flows.

Note_13_Statutory_Information_

Note 13 - Statutory Information (Notes)	3 Months Ended
	Mar. 31, 2015
Statutory Information [Abstract]
Statutory Information	Statutory Information
	We prepare our statutory financial statements in accordance with the accounting practices required or permitted, if applicable, by the insurance departments of the respective states of domicile of our insurance subsidiaries. Required statutory accounting practices are established by a variety of publications of the NAIC as well as state laws, regulations and general administrative rules. In addition, insurance departments have the right to permit other specific practices that may deviate from prescribed practices. As of March 31, 2015, our use of any prescribed or permitted statutory accounting practices did not result in reported statutory surplus or risk-based capital being significantly different from what would have been reported had NAIC statutory accounting practices been followed.
	The state insurance regulations include various capital requirements and dividend restrictions based on our insurance subsidiaries’ statutory financial position and results of operations, as described below. Failure to maintain adequate levels of capital could lead to intervention by the various insurance regulatory authorities, which could materially and adversely affect our business, business prospects and financial condition. As of March 31, 2015, the amount of restricted net assets held by our consolidated insurance subsidiaries (which represents our equity investment in those insurance subsidiaries) totaled $3.0 billion of our consolidated net assets.
	Radian Guaranty
	Radian Guaranty’s statutory net income, statutory policyholders’ surplus and contingency reserve as of and for the periods indicated were as follows:
	(In millions)	As of and for the Three Months Ended		As of and for the Year Ended December 31, 2014
		31-Mar-15
	Statutory net income	$	110.8	$	273.7
	Statutory policyholders’ surplus	1,349.40		1,325.20
	Contingency reserve	487.6		389.4
	Under state insurance regulations, Radian Guaranty is required to maintain minimum surplus levels and, in certain states, a minimum ratio of statutory capital relative to the level of net RIF, or “Risk-to-capital.” The sixteen RBC States currently impose a Statutory RBC Requirement. The most common Statutory RBC Requirement is that a mortgage insurer’s Risk-to-capital may not exceed 25 to 1. In certain of the RBC States, a mortgage insurer must satisfy an MPP Requirement. The statutory capital requirements for the non-RBC States are de minimis (ranging from $1 million to $5 million); however, the insurance laws of these states generally grant broad supervisory powers to state agencies or officials to enforce rules or exercise discretion affecting almost every significant aspect of the insurance business, including the power to revoke or restrict an insurance company’s ability to write new business. Unless an RBC State grants a waiver or other form of relief, if a mortgage insurer is not in compliance with the Statutory RBC Requirement of that state, the mortgage insurer may be prohibited from writing new mortgage insurance business in that state. Radian Guaranty’s domiciliary state, Pennsylvania, is not one of the RBC States. For both the three months ended March 31, 2015 and the year ended December 31, 2014, the RBC States accounted for approximately 56.3%, of Radian Guaranty’s total primary NIW.
	Radian Guaranty was in compliance with the Statutory RBC Requirements or MPP Requirements, as applicable, in each of the RBC States as of March 31, 2015. See Note 1 for information regarding potential changes to the Model Act, which may result in more stringent Statutory RBC Requirements and MPP Requirements in states that adopt the Model Act, as well as the GSE eligibility requirements that were issued as final PMIERs on April 17, 2015.
	Radian Guaranty’s Risk-to-capital calculation appears in the table below. For purposes of the Risk-to-capital calculation, as well as the Risk-to-capital requirements imposed by certain states, statutory capital is defined as the sum of statutory policyholders’ surplus (i.e., statutory capital and surplus) plus statutory contingency reserves.
		March 31,		December 31,
		2015		2014
	($ in millions)
	RIF, net (1)	$	31,324.00	$	30,615.70
	Statutory policyholders’ surplus	$	1,349.40	$	1,325.20
	Contingency reserve	487.6		389.4
	Statutory capital	$	1,837.00	$	1,714.60
	Risk-to-capital	17.1:1		17.9:1
	_______________________
	-1	Excludes risk ceded through reinsurance contracts (to third parties and affiliates) and RIF on defaulted loans.
	The reduction in Radian Guaranty’s Risk-to-capital in the first three months of 2015 was primarily due to increases in statutory net income and contingency reserves, partially offset by an increase in net RIF at Radian Guaranty.
	We have actively managed Radian Guaranty’s capital position in various ways, including: (1) through internal and external reinsurance arrangements; (2) by seeking opportunities to reduce our risk exposure through negotiated transactions; and (3) by contributing additional capital from Radian Group. Given our current financial projections for Radian Guaranty, which are subject to risks and uncertainties, we expect Radian Guaranty’s Risk-to-capital to decrease over time.
	Radian Asset Assurance
	Radian Asset Assurance was our financial guaranty subsidiary and was, until the April 1, 2015 sale date, domiciled and licensed in New York as a monoline financial guaranty insurer. It was also licensed under the New York insurance laws to write some types of surety insurance and credit insurance. See Note 2 for additional information related to discontinued operations.

Note_14_Selected_Financial_Inf

Note 14 - Selected Financial Information of Registrant (Notes)	3 Months Ended
	Mar. 31, 2015
Condensed Financial Information of Parent Company Only Disclosure [Abstract]
Selected Financial Information of Registrant - Radian Group	Selected Financial Information of Registrant—Radian Group—Parent Company Only
	(In thousands)	March 31,		December 31, 2014
		2015
	Investment in subsidiaries, at equity in net assets	$	2,960,604	$	2,746,915
	Total assets	3,870,760		3,759,275
	Long-term debt	1,218,972		1,209,926
	Total liabilities	1,594,866		1,587,525
	Equity component of currently redeemable convertible senior notes	68,982		74,690
	Total stockholders’ equity	2,206,912		2,097,060
	Total liabilities and stockholders’ equity	3,870,760		3,759,275

Note_15_Commitments_and_Contin

Note 15 - Commitments and Contingencies (Notes)	3 Months Ended
	Mar. 31, 2015
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies
	Legal Proceedings
	We are routinely involved in a number of legal actions and proceedings, the outcomes of which are uncertain. The legal proceedings could result in adverse judgments, settlements, fines, injunctions, restitutions or other relief that could require significant expenditures or have other effects on our business. In accordance with applicable accounting standards and guidance, we establish accruals for a legal proceeding only when we determine both that it is probable that a loss has been incurred and the amount of the loss is reasonably estimable. We accrue the amount that represents our best estimate of the probable loss; however, if we can only determine a range of estimated losses, we accrue an amount within the range that, in our judgment, reflects the most likely outcome, and if none of the estimates within the range is more likely, we accrue the minimum amount of the range.
	In the course of our regular review of pending legal matters, we determine whether it is reasonably possible that a potential loss relating to a legal proceeding may have a material impact on our liquidity, results of operations or financial condition. If we determine such a loss is reasonably possible, we disclose information relating to such potential loss, including an estimate or range of loss or a statement that such an estimate cannot be made. On a quarterly and annual basis, we review relevant information with respect to legal loss contingencies and update our accruals, disclosures and estimates of reasonably possible losses or range of losses based on such reviews. We are often unable to estimate the possible loss or range of loss until developments in such matters have provided sufficient information to support an assessment of the range of possible loss, such as quantification of a damage demand from plaintiffs, discovery from other parties and investigation of factual allegations, rulings by the court on motions or appeals, analysis by experts, and the progress of settlement negotiations. In addition, we generally make no disclosures for loss contingencies that are determined to be remote. For matters for which we disclose an estimated loss, the disclosed estimate reflects the reasonably possible loss or range of loss in excess of the amount accrued, if any.
	Loss estimates are inherently subjective, based on currently available information, and are subject to management’s judgment and various assumptions. Due to the inherently subjective nature of these estimates and the uncertainty and unpredictability surrounding the outcome of legal proceedings, actual results may differ materially from any amounts that have been accrued.
	As previously disclosed, we have been named as a defendant in a number of putative class action lawsuits alleging, among other things, that our captive reinsurance agreements violate RESPA. Each of the cases set forth below were putative class actions that asserted violations of RESPA in which Radian Guaranty had been named as a defendant and had insured at least one loan of one of the plaintiffs.
	•	On December 30, 2011, a putative class action under RESPA titled White v. PNC Financial Services Group was filed in the U.S. District Court for the Eastern District of Pennsylvania.
	•	On January 13, 2012, a putative class action under RESPA titled Menichino, et al. v. Citibank, N.A., et al., was filed in the U.S. District Court for the Western District of Pennsylvania. Radian Guaranty was not named as a defendant in the original complaint. On December 4, 2012, plaintiffs amended their complaint to add Radian Guaranty as an additional defendant.
	•	On April 5, 2012, a putative class action under RESPA titled Manners, et al. v. Fifth Third Bank, et al was filed in the U.S. District Court for the Western District of Pennsylvania.
	On March 25, 2015, Radian Guaranty and the plaintiffs in the putative class action lawsuits above entered into a settlement agreement, pursuant to which the plaintiffs agreed to voluntarily dismiss their claims with prejudice and to fully release Radian Guaranty from any future claims related to the claims in these lawsuits.
	In addition to the litigation discussed above, we are involved in litigation that has arisen in the normal course of our business. We are contesting the allegations in each such pending action and management believes, based on current knowledge and after consultation with counsel, that the outcome of such litigation will not have a material adverse effect on our consolidated financial condition. However, the outcome of litigation and other legal and regulatory matters is inherently uncertain, and it is possible that one or more of the matters currently pending or threatened could have an unanticipated adverse effect on our liquidity, financial condition or results of operations for any particular period.
	In addition to the private lawsuits discussed above, we and other mortgage insurers have been subject to inquiries from the Minnesota Department of Commerce requesting information relating to captive reinsurance. We have cooperated with these requests for information. In August 2013, Radian Guaranty and other mortgage insurers first received a draft Consent Order from the Minnesota Department of Commerce, containing proposed conditions and unspecified penalties, to resolve its outstanding inquiries related to captive reinsurance arrangements involving mortgage insurance in Minnesota. We continue to cooperate with the Minnesota Department of Commerce and are engaged in active discussions with them with respect to their inquiries, including the penalties they are seeking and various alternatives for resolving this matter. We cannot predict the outcome of this matter or whether additional actions or proceedings may be brought against us. We have not entered into any new captive reinsurance arrangements since 2007.
	On September 4, 2014, we received Notices of Deficiency covering the 2000 through 2007 tax years that assert unpaid taxes and penalties of approximately $157 million. The Deficiency Amount has not been reduced to reflect our NOL carryback ability. On December 3, 2014, we petitioned the U.S. Tax Court to litigate the Deficiency Amount. See Note 12 for additional information regarding this litigation.
	Our Master Policies establish the timeline within which any suit or action arising from any right of an insured under the policy generally must be commenced. We continue to face a number of challenges from certain customers regarding our Loss Mitigation Activities, which have resulted in some reversals of our decisions regarding Rescissions, Claim Denials or Claim Curtailments. We are currently in discussions with some customers regarding our Loss Mitigation Activities and our claim payment practices, which if not resolved, could result in arbitration or additional judicial proceedings. See Note 9 for further information.
	Further, we have identified a significant number of loans in our total defaulted portfolio (in particular, our older defaulted portfolio) for which actions or proceedings such as foreclosure that provide the insured with title to the property may not have been commenced within the outermost deadline established in our Prior Master Policy. We currently are in discussions with the servicers for these loans regarding this potential violation and our corresponding rights under the Prior Master Policy. While we can provide no assurance regarding the outcome of these discussions or the ultimate resolution of these issues, it is possible that these discussions could result in arbitration or legal proceedings.
	The elevated levels of our Loss Mitigation Activities (related to servicer negligence) have led to an increased risk of litigation by lenders, policyholders and servicers challenging our right to rescind coverage, deny claims or curtail claim amounts. We believe that our loss mitigation actions are justified under our policies. However, in the event we are not successful in defending our Loss Mitigation Activities, we may need to reassume the risk on and increase loss reserves for previous Rescissions or pay additional claims on curtailed amounts. See Note 9 for further information.
	Other
	Securities regulations became effective in 2005 that impose enhanced disclosure requirements on issuers of ABS (including mortgage-backed securities). To allow our customers to comply with these regulations at that time, we typically were required, depending on the amount of credit enhancement we were providing, to provide: (1) audited financial statements for the insurance subsidiary participating in the transaction; or (2) a full and unconditional holding company-level guarantee for our insurance subsidiaries’ obligations in such transactions. Radian Group has guaranteed two structured transactions for Radian Guaranty involving approximately $126.4 million of remaining credit exposure as of March 31, 2015.
	As part of the non-investment-grade allocation component of our investment program, we had unfunded commitments of $7.3 million at March 31, 2015, related to alternative investments that are primarily private equity structures. These commitments have capital calls expected through 2015, with the possibility of additional calls through 2017, and certain fixed expiration dates or other termination clauses.
	Radian Asset Assurance, our former financial guaranty subsidiary, received a series of claims (€13.5 million, or $16.4 million, as of December 31, 2014) from one of its trade credit and surety ceding companies related to surety bonds for Spanish housing cooperative developments. This legal matter was part of our discontinued operations as of December 31, 2014 and March 31, 2015, and was transferred to Assured as part of the sale of Radian Asset Assurance on April 1, 2015, pursuant to the Radian Asset Assurance Stock Purchase Agreement dated as of December 22, 2014. As a result, we no longer have any risk of loss associated with this matter.

Note_16_Net_Income_Loss_Per_Sh

Note 16 - Net Income (Loss) Per Share (Notes)	3 Months Ended
	Mar. 31, 2015
Earnings Per Share, Basic and Diluted [Abstract]
Net Income (Loss) Per Share	Net Income Per Share
	Basic net income per share is computed by dividing net income by the weighted-average number of common shares outstanding, while diluted net income per share is computed by dividing net income attributable to common shareholders by the sum of the weighted average number of common shares outstanding and all dilutive potential common shares outstanding. Dilutive potential common shares relate to our stock-based compensation arrangements and our outstanding convertible senior notes. For all calculations, the determination of whether potential common shares are dilutive or anti-dilutive is based on net income from continuing operations.
	The calculation of the basic and diluted net income per share was as follows:
		Three Months Ended
		March 31,
	(In thousands, except share and per share amounts)	2015		2014
	Net income from continuing operations:
	Net income from continuing operations - basic	$	91,727	$	145,980
	Adjustment for dilutive Convertible Senior Notes due 2019, net of tax (1)	3,673		5,455
	Net income from continuing operations - diluted	$	95,400	$	151,435
	Net income:
	Net income from continuing operations - basic	$	91,727	$	145,980
	Income from discontinued operations, net of tax	530		56,779
	Net income - basic	92,257		202,759
	Adjustment for dilutive Convertible Senior Notes due 2019, net of tax (1)	3,673		5,455
	Net income - diluted	$	95,930	$	208,214
	Average common shares outstanding - basic	191,224		173,165
	Dilutive effect of Convertible Senior Notes due 2017	10,886		9,003
	Dilutive effect of Convertible Senior Notes due 2019	37,736		37,736
	Dilutive effect of stock-based compensation arrangements (2)	3,202		2,764
	Adjusted average common shares outstanding - diluted	243,048		222,668
	Net income per share:
	Basic:
	Net income from continuing operations	$	0.48	$	0.84
	Income from discontinued operations	—		0.33
	Net income	$	0.48	$	1.17
	Diluted:
	Net income from continuing operations	$	0.39	$	0.68
	Income from discontinued operations	—		0.26
	Net income	$	0.39	$	0.94
	________________
	-1	As applicable, includes coupon interest, amortization of discount and fees, and other changes in income or loss that would result from the assumed conversion.
	-2	For the three months ended March 31, 2015, 540,400 shares of our common stock equivalents issued under our stock-based compensation arrangements were not included in the calculation of diluted net income per share because they were anti-dilutive. For the three months ended March 31, 2014, 946,400 shares of our common stock equivalents issued under our stock-based compensation arrangements were not included in the calculation of diluted net income per share because they were anti-dilutive.

Note_1_Condensed_Consolidated_1

Note 1 - Condensed Consolidated Financial Statements - Basis of Presentation and Business Overview (Policies)	3 Months Ended
	Mar. 31, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Accounting, Policy [Policy Text Block]	Our condensed consolidated financial statements are prepared in accordance with GAAP and include the accounts of all wholly-owned subsidiaries. Companies in which we, or one of our subsidiaries, exercise significant influence (generally ownership interests ranging from 20% to 50%), are accounted for in accordance with the equity method of accounting. Any VIEs for which we are the primary beneficiary are consolidated. All intercompany accounts and transactions, and intercompany profits and losses, have been eliminated.
Accounting Standards Update 2014-08 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Description of New Accounting Pronouncements Not yet Adopted [Text Block]	In April 2014, the Financial Accounting Standards Board (“FASB”) issued an update to the accounting standard for reporting discontinued operations and disclosures of disposals of components of an entity. This update changes the requirements for reporting discontinued operations. A disposal of a component of an entity or a group of components of an entity is required to be reported in discontinued operations if the disposal represents (or would represent) a strategic shift that has (or will have) a major effect on an entity’s operations and financial results when any of the following occurs: (a) the component of an entity or group of components of an entity meets the criteria to be classified as held for sale; (b) the component of an entity or group of components of an entity is disposed of by sale; or (c) the component of an entity or group of components of an entity is disposed of other than by sale (for example, by abandonment or in a distribution to owners in a spin-off). The amendments in this update require expanded disclosures about discontinued operations. The provisions of this update are effective for all disposals (or classifications as held for sale) of components of an entity that occur within annual periods beginning on or after December 15, 2014, and interim periods within those years.
Accounting Standards Update 2014-09 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Description of New Accounting Pronouncements Not yet Adopted [Text Block]	In May 2014, the FASB issued an update to the accounting standard regarding revenue recognition. This update is intended to provide a consistent approach in recognizing revenue. In accordance with the new standard, recognition of revenue occurs when a customer obtains control of promised goods or services in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. In addition, the new standard requires that reporting companies disclose the nature, amount, timing, and uncertainty of revenue and cash flows arising from contracts with customers. While this update is not expected to change revenue recognition principles related to our insurance products, this update may be applicable to revenues from our Services segment, which has been included in our condensed consolidated statements of operations beginning with the third quarter of 2014. The provisions of this update are effective for interim and annual periods beginning after December 15, 2016.
Accounting Standards Update 2015-03 [Member] [Domain]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Description of New Accounting Pronouncements Not yet Adopted [Text Block]	In April 2015, the FASB issued an update to the accounting standard for the presentation of debt issuance costs in financial statements. The new standard requires an entity to present debt issuance costs related to a recognized debt liability as a direct reduction from the carrying amount of the related debt liability, consistent with debt discounts, rather than as a separate asset as currently required. The recognition and measurement guidance for debt issuance costs are not affected by the update. The provisions of this update are effective for interim and annual periods beginning after December 15, 2015 and must be applied on a retrospective basis for all periods presented. Early adoption is permitted for financial statements that have not been previously issued. Upon adoption, the standard requires an entity to disclose: (a) the nature of and reason for the change in accounting principle; (b) the transition method; (c) a description of the prior period information that has been retrospectively adjusted; and (d) the effect of the change on the financial statement line items.
Accounting Standards Update 2015-05 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Description of New Accounting Pronouncements Not yet Adopted [Text Block]	In April 2015, the FASB issued an update to the accounting standard for the accounting of internal-use software. The amendments in this update provide guidance to customers about whether a cloud computing arrangement includes a software license. If a cloud computing arrangement includes a software license, then the customer should account for the software license element of the arrangement consistent with the acquisition of other software licenses. If a cloud computing arrangement does not include a software license, the customer should account for the arrangement as a service contract. The provisions of this update are effective for interim and annual periods beginning after December 15, 2015, and early adoption is permitted.

Note_4_Fair_Value_of_Financial1

Note 4 - Fair Value of Financial Instruments (Policies)	3 Months Ended
	Mar. 31, 2015
Fair Value Disclosures [Abstract]
Fair Value of Financial Instruments, Policy [Policy Text Block]	In accordance with GAAP, we established a three-level valuation hierarchy for disclosure of fair value measurements based on the transparency of inputs to the valuation of an asset or liability as of the measurement date. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level I measurements) and the lowest priority to unobservable inputs (Level III measurements). The level in the fair value hierarchy within which the fair value measurement falls is determined based on the lowest level input that is significant to the measurement in its entirety. The three levels of the fair value hierarchy are defined below:
	Level I	—    Unadjusted quoted prices for identical assets or liabilities in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities;
	Level II	—    Prices or valuations based on observable inputs other than quoted prices in active markets for identical assets and liabilities; and
	Level III	—    Prices or valuations that require inputs that are both significant to the fair value measurement and unobservable. Level III inputs are used to measure fair value only to the extent that observable inputs are not available.
	The level of market activity used to determine the fair value hierarchy is based on the availability of observable inputs market participants would use to price an asset or a liability, including market value price observations.

Note_12_Income_Taxes_Policies

Note 12 - Income Taxes (Policies)	3 Months Ended
	Mar. 31, 2015
Income Tax Disclosure [Abstract]
Income Tax, Policy [Policy Text Block]	We are required to establish a valuation allowance against our DTAs when it is more likely than not that all or some portion of our DTAs will not be realized. At each balance sheet date, we assess our need for a valuation allowance. Our assessment is based on all available evidence, both positive and negative. This requires management to exercise judgment and make assumptions regarding whether our DTAs will be realized in future periods.
	We provide for income taxes in accordance with the provisions of the accounting standard regarding accounting for income taxes. As required under this standard, our deferred tax assets (“DTAs”) and deferred tax liabilities (“DTLs”) are recognized under the balance sheet method, which recognizes the future tax effect of temporary differences between the amounts recorded in our condensed consolidated financial statements and the tax bases of these amounts. DTAs and DTLs are measured using the enacted tax rates expected to apply to taxable income in the periods in which the DTA or DTL is expected to be realized or settled.
	Our provision for income taxes for interim financial periods is based on an estimate of our annual effective tax rate for continuing operations for the full year. When estimating our full year 2015 and 2014 annual effective tax rate, we accounted for the tax effects of gains and losses on our investments, changes in the accounting for uncertainty in income taxes, and other adjustments discretely at the federal applicable tax rate.

Note_2_Discontinued_Operations1

Note 2 - Discontinued Operations (Tables)	3 Months Ended
	Mar. 31, 2015
Discontinued Operations and Disposal Groups [Abstract]
Schedule of Disposal Groups, Including Discontinued Operations, Income Statement, Balance Sheet and Additional Disclosures [Table Text Block]	The income from discontinued operations, net of tax, consisted of the following components for the periods indicated:
		Three Months Ended
		March 31,
	(In thousands)	2015			2014
	Net premiums earned	$	1,007		$	6,903
	Net investment income	9,153			8,911
	Net gains on investments and other financial instruments	13,668			22,182
	Change in fair value of derivative instruments	2,625			50,086
	Total revenues	26,453			88,082
	Provision for losses	502			5,649
	Policy acquisition costs	(191		)	1,597
	Other operating expense	4,107			5,402
	Total expenses	4,418			12,648
	Equity in net loss of affiliates	(13		)	(13		)
	Income from operations of businesses held for sale	22,022			75,421
	Loss on classification as held for sale	(13,930		)	—
	Income tax provision	7,562			18,642
	Income from discontinued operations, net of tax	$	530		$	56,779
	The assets and liabilities associated with the discontinued operations have been segregated in the condensed consolidated balance sheets. The following table summarizes the major components of Radian Asset Assurance’s assets and liabilities held for sale on the condensed consolidated balance sheets as of the dates indicated:
	(In thousands)	March 31, 2015			December 31, 2014
	Fixed-maturity investments	$	226,334		$	224,552
	Equity securities	4,019			3,749
	Trading securities	679,972			689,887
	Short-term investments	449,391			435,413
	Other invested assets	108,080			108,206
	Other assets	288,077			274,637
	Total assets held for sale	$	1,755,873		$	1,736,444
	Unearned premiums	$	152,445		$	158,921
	Reserve for losses and LAE	32,420			31,558
	VIE debt	82,238			85,016
	Derivative liabilities	187,462			183,370
	Other liabilities	511,513			488,143
	Total liabilities held for sale	$	966,078		$	947,008

Note_3_Segment_Reporting_Table

Note 3 - Segment Reporting (Tables)	3 Months Ended
	Mar. 31, 2015
Segment Reporting [Abstract]
Schedule of Segment Reporting Information, by Segment [Table Text Block]	Summarized financial information concerning our operating segments as of and for the periods indicated, is as follows:
		Three Months Ended March 31, 2015
	(In thousands)	Mortgage Insurance			Services				Total
	Net premiums written—insurance	$	241,908		$	—			$	241,908
	Increase in unearned premiums	(17,313		)	—				(17,313		)
	Net premiums earned—insurance	224,595			—				224,595
	Services revenue	—			30,742				30,742
	Net investment income (1)	17,328			—				17,328
	Other income (1)	1,331			790				2,121
	Total (2)	243,254			31,532				274,786
	Provision for losses	45,851			—				45,851
	Policy acquisition costs	7,750			—				7,750
	Direct cost of services	—			18,451				18,451
	Other operating expenses before corporate allocations (3)	34,050			9,659				43,709
	Total (4)	87,651			28,110				115,761
	Adjusted pretax operating income before corporate allocations	155,603			3,422				159,025
	Allocation of corporate operating expenses (1)	9,758			981				10,739
	Allocation of interest expense (1)	19,953			4,432				24,385
	Adjusted pretax operating income (loss)	$	125,892		$	(1,991	)		$	123,901
	Cash and investments	$	3,669,413		$	9,437			$	3,678,850
	Restricted cash	11,348			2,872				14,220
	Goodwill	—			194,246				194,246
	Other intangible assets, net	—			99,552				99,552
	Assets held for sale (5)	—			—				1,755,873
	Total assets (5)	4,708,744			349,238				6,813,855
	Unearned premiums	657,555			—				657,555
	Reserve for losses and LAE	1,384,714			—				1,384,714
	NIW (in millions)	$	9,385
	____________
	-1	Includes certain corporate income and expenses that have been reallocated to the Mortgage Insurance segment that were previously allocated to the former financial guaranty segment, but were not reclassified to discontinued operations. These items include net investment income of $0.9 million, corporate overhead expenses of $2.1 million and interest expense of $9.9 million.
	-2	Excludes net gains on investments and other financial instruments of $16.8 million, not included in adjusted pretax operating income. Includes inter-segment revenues of $0.9 million in the Services segment.
	-3	Excludes $0.2 million of acquisition-related expenses not included in segment other operating expenses.
	-4	Includes inter-segment expenses of $0.9 million in the Mortgage Insurance segment.
	-5	Assets held for sale are not part of the Mortgage Insurance or Services segments.
		Three Months Ended March 31, 2014
	(In thousands)	Mortgage Insurance			Services				Total
	Net premiums written—insurance	$	212,953		$	—			$	212,953
	Increase in unearned premiums	(14,191		)	—				(14,191		)
	Net premiums earned—insurance	198,762			—				198,762
	Net investment income (1)	15,318			—				15,318
	Other income (1)	996			130				1,126
	Total (2)	215,076			130				215,206
	Provision for losses	49,626			—				49,626
	Change in expected economic loss or recovery for consolidated VIEs	139			—				139
	Policy acquisition costs	7,017			—				7,017
	Other operating expenses before corporate allocations	37,764			859				38,623
	Total	94,546			859				95,405
	Adjusted pretax operating income (loss) before corporate allocations	120,530			(729		)		119,801
	Allocation of corporate operating expenses (1)	15,884			—				15,884
	Allocation of interest expense (1)	19,927			—				19,927
	Adjusted pretax operating income (loss)	$	84,719		$	(729	)		$	83,990
	Cash and investments	$	3,302,763		$	24			$	3,302,787
	Restricted cash	22,366			—				22,366
	Goodwill	—			2,095				2,095
	Other intangible assets, net	—			188				188
	Assets held for sale (3)	—			—				1,795,185
	Total assets (3)	3,731,139			2,661				5,528,985
	Unearned premiums	580,453			—				580,453
	Reserve for losses and LAE	1,893,960			—				1,893,960
	NIW (in millions)	$	6,808
	________________
	-1	Includes certain corporate income and expenses that have been reallocated to the Mortgage Insurance segment that were previously allocated to the former financial guaranty segment, but were not reclassified to discontinued operations. These items include net investment income of $1.3 million, other income of $0.1 million, corporate overhead expenses of $4.1 million and interest expense of $14.6 million.
	-2	Excludes net gains on investments and other financial instruments of $43.1 million, not included in adjusted pretax operating income.
	-3	Assets held for sale are not part of the Mortgage Insurance or Services segments.
Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table Text Block]	The reconciliation of adjusted pretax operating income to consolidated pretax income from continuing operations is as follows:
		Three Months Ended
		March 31,
	(In thousands)	2015			2014
	Adjusted pretax operating income (loss):
	Mortgage Insurance (1) (2)	$	125,892		$	84,719
	Services (3)	(1,991		)	(729		)
	Total adjusted pretax operating income	123,901			83,990
	Net gains on investments and other financial instruments	16,779			43,107			-4
	Acquisition-related expenses	(207		)	—
	Amortization and impairment of intangible assets	(3,023		)	—
	Consolidated pretax income from continuing operations	$	137,450		$	127,097
	______________
	-1	Includes certain corporate income and expenses that have been reallocated to the Mortgage Insurance segment for all periods presented, as listed in the preceding detailed tables. These amounts represent items that were previously allocated to the former financial guaranty segment, but were not reclassified to discontinued operations.
	-2	Includes inter-segment expenses of $0.9 million for the three months ended March 31, 2015.
	-3	Includes inter-segment revenues of $0.9 million for the three months ended March 31, 2015.
	-4	The change in expected economic loss or recovery associated with our consolidated VIEs is included in adjusted pretax operating income above. Therefore, for purposes of this reconciliation, net gains on investments and other financial instruments has been adjusted by $0.1 million for the three months ended March 31, 2014 to reverse this item, which represents an amount that is not included in net income.

Note_4_Fair_Value_of_Financial2

Note 4 - Fair Value of Financial Instruments (Tables)	3 Months Ended
	Mar. 31, 2015
Fair Value Disclosures [Abstract]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]	The following is a list of those assets that are measured at fair value by hierarchy level as of March 31, 2015:
	(In millions)	Level I		Level II			Total
	Assets at Fair Value
	Investment Portfolio:
	U.S. government and agency securities	$	630.6	$	3		$	633.6
	State and municipal obligations	—		353			353
	Money market instruments	601.3		—			601.3
	Corporate bonds and notes	—		1,115.00			1,115.00
	RMBS	—		128.1			128.1
	CMBS	—		247.9			247.9
	Other ABS	—		177.6			177.6
	Foreign government and agency securities	—		35.3			35.3
	Equity securities (1)	162.6		52.2			214.8
	Other investments (2)	—		101			101
	Total Investments at Fair Value (3)	1,394.50		2,213.10			3,607.60
	Total Assets at Fair Value	$	1,394.50	$	2,213.10		$	3,607.60
	______________________
	-1	Comprising broadly diversified domestic equity mutual funds and certain common stocks included within Level I and various preferred stocks invested across numerous companies and industries included within Level II.
	-2	Comprising short-term certificates of deposit ($1.0 million) and short-term commercial paper ($100.0 million) included within Level II.
	-3	Does not include certain other invested assets ($14.0 million), primarily invested in limited partnerships, accounted for as cost-method investments and not measured at fair value. Also excludes investments classified as assets held for sale of $502.1 million, $838.0 million and $102.8 million, with fair values categorized in Level I, Level II and Level III, respectively.
	At March 31, 2015, there were no Level III assets other than those classified as assets held for sale.
	The following is a list of those assets that are measured at fair value by hierarchy level as of December 31, 2014:
	(In millions)	Level I		Level II			Total
	Assets at Fair Value
	Investment Portfolio:
	U.S. government and agency securities	$	836.9	$	3		$	839.9
	State and municipal obligations	—		362.8			362.8
	Money market instruments	600.3		—			600.3
	Corporate bonds and notes	—		992.8			992.8
	RMBS	—		132.3			132.3
	CMBS	—		246.8			246.8
	Other ABS	—		185.5			185.5
	Foreign government and agency securities	—		37.7			37.7
	Equity securities (1)	164		51.6			215.6
	Other investments (2)	—		1			1
	Total Investments at Fair Value (3)	1,601.20		2,013.50			3,614.70
	Total Assets at Fair Value	$	1,601.20	$	2,013.50		$	3,614.70
	______________________
	-1	Comprising broadly diversified domestic equity mutual funds and certain common stocks included within Level I and various preferred stocks invested across numerous companies and industries included within Level II.
	-2	Comprising short-term certificates of deposit.
	-3	Does not include certain other invested assets ($14.6 million), primarily invested in limited partnerships, accounted for as cost-method investments and not measured at fair value. Also excludes investments classified as assets held for sale of $495.1 million, $839.2 million and $102.6 million, with fair values categorized in Level I, Level II and Level III, respectively.
Fair Value, by Balance Sheet Grouping [Table Text Block]	The carrying value and estimated fair value of other selected assets and liabilities not carried at fair value on our condensed consolidated balance sheets were as follows as of the dates indicated:
		March 31, 2015					December 31, 2014
	(In millions)	Carrying		Estimated			Carrying		Estimated
		Amount		Fair Value			Amount		Fair Value
	Assets:
	Other invested assets	$	14	$	20.7	-1	$	14.6	$	20.5	-1
	Liabilities:
	Long-term debt	1,219.00		1,862.10		-1	1,209.90		1,859.30		-1
	______________________
	-1	These estimated fair values would be classified in Level II of the fair value hierarchy.

Note_5_Investments_Tables

Note 5 - Investments (Tables)	3 Months Ended
	Mar. 31, 2015
Investments [Abstract]
Unrealized Gain (Loss) on Investments [Table Text Block]	Our available for sale securities within our investment portfolio consisted of the following as of the dates indicated:
		March 31, 2015
	(In thousands)	Amortized			Fair Value			Gross		Gross
		Cost						Unrealized		Unrealized
								Gains		Losses
	Fixed-maturities available for sale:
	U.S. government and agency securities	$	5,727		$	5,783		$	56	$	—
	State and municipal obligations	17,698			18,971			1,273		—
	Corporate bonds and notes	402,308			415,333			13,636		611
	RMBS	40,334			41,845			1,511		—
	CMBS	67,194			69,373			2,181		2
	Other ABS	122,605			122,237			559		927
	Foreign government and agency securities	21,174			21,543			576		207
		677,040			695,085			19,792		1,747
	Equity securities available for sale (1)	76,900			143,533			66,633		—
	Total debt and equity securities	$	753,940		$	838,618		$	86,425	$	1,747
	______________________
	-1	Comprising broadly diversified domestic equity mutual funds ($143.1 million fair value) and a preferred stock investment in Freddie Mac ($0.4 million fair value).
		December 31, 2014
	(In thousands)	Amortized			Fair Value			Gross		Gross
		Cost						Unrealized		Unrealized
								Gains		Losses
	Fixed-maturities available for sale:
	U.S. government and agency securities	$	5,709		$	5,751		$	48	$	6
	State and municipal obligations	17,727			18,910			1,183		—
	Corporate bonds and notes	277,678			284,408			7,288		558
	RMBS	41,467			42,520			1,053		—
	CMBS	57,358			58,234			876		—
	Other ABS	109,420			107,701			8		1,727
	Foreign government and agency securities	19,301			19,366			307		242
		528,660			536,890			10,763		2,533
	Equity securities available for sale (1)	76,900			143,368			66,468		—
	Total debt and equity securities	$	605,560		$	680,258		$	77,231	$	2,533
	______________________
	-1	Comprising broadly diversified domestic equity mutual funds ($143.0 million fair value) and a preferred stock investment in Freddie Mac ($0.4 million fair value).
Trading Securities (and Certain Trading Assets) [Table Text Block]	The “trading securities” within our investment portfolio, which are recorded at fair value, consisted of the following as of the dates indicated:
	(In thousands)	March 31,			December 31,
		2015			2014
	Trading securities:
	U.S. government and agency securities	$	135,801		$	134,530
	State and municipal obligations	334,052			343,926
	Corporate bonds and notes	699,621			708,361
	RMBS	86,294			89,810
	CMBS	178,563			188,615
	Other ABS	55,386			77,755
	Foreign government and agency securities	13,731			18,331
	Equity securities	71,347			72,256
	Total	$	1,574,795		$	1,633,584
Gain (Loss) on Investments [Table Text Block]	Net realized and unrealized gains (losses) on investments and other financial instruments consisted of:
		Three Months Ended March 31,
	(In thousands)	2015			2014
	Net realized gains (losses):
	Fixed-maturities held to maturity	$	—		$	(9	)
	Fixed-maturities available for sale	(51		)	5
	Trading securities	(4,568		)	(4,351		)
	Other	105			10
	Net realized losses on investments	(4,514		)	(4,345		)
	Unrealized gains on trading securities	20,701			47,631
	Total net gains on investments	16,187			43,286
	Net gains (losses) on other financial instruments	592			(318		)
	Net gains on investments and other financial instruments	$	16,779		$	42,968
Schedule Of Unrealized Losses [Table Text Block]	The following tables show the gross unrealized losses and fair value of our securities deemed “available for sale” aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position, as of the dates indicated:
	March 31, 2015: ($ in thousands) Description of Securities		Less Than 12 Months							12 Months or Greater						Total
			# of		Fair Value			Unrealized		# of		Fair Value		Unrealized		# of	Fair Value		Unrealized
			securities					Losses		securities				Losses		securities			Losses
	Corporate bonds and notes		22		$	41,307		$	445	1		$	1,024	$	166	23	$	42,331	$	611
	CMBS		1		2,057			2		—		—		—		1	2,057		2
	Other ABS		21		54,604			817		2		8,418		110		23	63,022		927
	Foreign government and agency securities		5		4,706			207		—		—		—		5	4,706		207
	Total		49		$	102,674		$	1,471	3		$	9,442	$	276	52	$	112,116	$	1,747
	December 31, 2014: ($ in thousands) Description of Securities		Less Than 12 Months							12 Months or Greater						Total
			# of		Fair Value			Unrealized		# of		Fair Value		Unrealized		# of	Fair Value		Unrealized
			securities					Losses		securities				Losses		securities			Losses
	U.S. government and agency securities		—		$	—		$	—	1		$	3,455	$	6	1	$	3,455	$	6
	Corporate bonds and notes		24		40,917			410		1		1,027		148		25	41,944		558
	Other ABS		34		97,356			1,727		—		—		—		34	97,356		1,727
	Foreign government and agency securities		4		6,353			242		—		—		—		4	6,353		242
	Total		62		$	144,626		$	2,379	2		$	4,482	$	154	64	$	149,108	$	2,533
Investments Classified by Contractual Maturity Date [Table Text Block]	The contractual maturities of fixed-maturity investments are as follows:
		March 31, 2015
		Available for Sale
	(In thousands)	Amortized			Fair
		Cost			Value
	Due in one year or less (1)	$	2,262		$	2,297
	Due after one year through five years (1)	44,413			44,741
	Due after five years through ten years (1)	257,586			263,269
	Due after ten years (1)	142,646			151,323
	RMBS (2)	40,334			41,845
	CMBS (2)	67,194			69,373
	Other ABS (2)	122,605			122,237
	Total	$	677,040		$	695,085
	______________________
	-1	Actual maturities may differ as a result of calls before scheduled maturity.
	-2	RMBS, CMBS, and Other ABS are shown separately, as they are not due at a single maturity date.

Note_6_Goodwill_and_Other_Inta1

Note 6 - Goodwill and Other Intangible Assets, Net (Tables)	3 Months Ended
	Mar. 31, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Goodwill [Table Text Block]	The following table shows the changes in the carrying amount of goodwill, all of which relates to our Services segment, as of and for the year-to-date periods ended March 31, 2015 and December 31, 2014:
		Services
	(In thousands)	March 31, 2015			December 31, 2014
	Balance at beginning of period:
	Goodwill	$	194,027		$	2,095
	Accumulated impairment losses	(2,095		)	—
	Goodwill, net	191,932			2,095
	Goodwill acquired during the period	2,314			191,932
	Impairment losses	—			(2,095		)
	Balance at end of period:
	Goodwill	196,341			194,027
	Accumulated impairment losses	(2,095		)	(2,095		)
	Goodwill, net	$	194,246		$	191,932
Schedule of Finite-Lived Intangible Assets [Table Text Block]	The following is a summary of the gross and net carrying amounts and accumulated amortization of our other intangible assets as of and for the year-to-date periods indicated:
		As of March 31, 2015
	(In thousands)	Gross Carrying Amount			Accumulated Amortization			Net Carrying Amount
	Client relationships	$	83,016		$	(4,884	)	$	78,132
	Technology	10,940			(1,189		)	9,751
	Trademark	8,300			(591		)	7,709
	Client backlog	6,680			(2,850		)	3,830
	Non-competition agreements	185			(55		)	130
	Total	$	109,121		$	(9,569	)	$	99,552
		As of December 31, 2014
		Gross Carrying Amount			Accumulated Amortization			Net Carrying Amount
	Client relationships	$	79,203		$	(2,917	)	$	76,286
	Technology	8,970			(797		)	8,173
	Trademark	7,860			(393		)	7,467
	Client backlog	6,680			(2,406		)	4,274
	Non-competition agreements	145			(37		)	108
	Total	$	102,858		$	(6,550	)	$	96,308
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]	The estimated aggregate amortization expense for the remainder of 2015 and thereafter is as follows (in thousands):
	2015	$	9,824
	2016	12,553
	2017	11,911
	2018	11,280
	2019	10,044
	2020	8,492
	Thereafter	35,448

Note_7_Reinsurance_Tables

Note 7 - Reinsurance (Tables)	3 Months Ended
	Mar. 31, 2015
Reinsurance Disclosures [Abstract]
Reinsurance, Premiums Written And Earned [Table Text Block]	The effect of reinsurance on net premiums written and earned is as follows:
		Three Months Ended
		March 31,
	(In thousands)	2015			2014
	Net premiums written-insurance:
	Direct	$	255,248		$	229,322
	Assumed	47			473
	Ceded	(13,387		)	(16,089		)
	Net premiums written-insurance	$	241,908		$	213,706
	Net premiums earned-insurance:
	Direct	$	242,164		$	215,876
	Assumed	13			12
	Ceded	(17,582		)	(17,126		)
	Net premiums earned-insurance	$	224,595		$	198,762
Reinsurance Transaction Details [Table Text Block]	The following tables show the amounts related to the QSR Reinsurance Transactions for the periods indicated:
		Initial QSR Transaction
		Three Months Ended
		March 31,
	(In thousands)	2015			2014
	Ceded premiums written	$	4,067		$	5,304
	Ceded premiums earned	6,018			6,807
	Ceding commissions written	880			1,326
		Second QSR Transaction
		Three Months Ended
		March 31,
	(In thousands)	2015			2014
	Ceded premiums written	$	6,529		$	7,293
	Ceded premiums earned	8,768			6,585
	Ceding commissions written	2,285			2,553

Note_8_Other_Assets_Tables

Note 8. Other Assets (Tables)	3 Months Ended
	Mar. 31, 2015
Other Assets [Abstract]
Schedule of Other Assets [Table Text Block]	The following table shows the components of other assets for the periods indicated:
	(In thousands)	March 31,		December 31,
		2015		2014
	Deposit with the IRS (See Note 12)	$	88,557	$	88,557
	Corporate-owned life insurance	81,367		80,755
	Prepaid reinsurance premiums	53,088		57,291
	Property and equipment (1)	28,875		27,248
	Accrued investment income	18,846		20,022
	Reinsurance recoverables	15,155		28,119
	Deferred policy acquisition costs	10,013		12,003
	Other	60,812		61,496
	Total other assets	$	356,713	$	375,491
	______________________
	-1	Property and equipment, at cost less accumulated depreciation of $101.6 million and $100.2 million at March 31, 2015 and December 31, 2014, respectively.

Note_9_Losses_and_LAE_Tables

Note 9 - Losses and LAE (Tables)	3 Months Ended
	Mar. 31, 2015
Insurance Loss Reserves [Abstract]
Reserve for Losses and LAE by category [Table Text Block]	The following table shows our mortgage insurance reserve for losses and LAE by category at the end of each period indicated:
	(In thousands)	March 31,			December 31,
		2015			2014
	Reserves for losses by category:
	Prime	$	640,919		$	700,174
	Alt-A	278,350			292,293
	A minus and below	163,390			179,103
	IBNR and other	167,204			223,114
	LAE	53,210			56,164
	Reinsurance recoverable (1)	13,365			26,665
	Total primary reserves	1,316,438			1,477,513
	Pool	62,943			75,785
	IBNR and other	1,227			1,775
	LAE	3,051			3,542
	Total pool reserves	67,221			81,102
	Total First-lien reserves	1,383,659			1,558,615
	Second-lien and other (2)	1,055			1,417
	Total reserve for losses	$	1,384,714		$	1,560,032
	______________________
	-1	Primarily represents ceded losses on captive transactions and the QSR Reinsurance Transactions.
	-2	Does not include our Second-lien PDR that is included in other liabilities.
Schedule of Liability for Unpaid Claims and Claims Adjustment Expense [Table Text Block]	The following table presents information relating to our mortgage insurance reserves for losses, including IBNR reserves and LAE but excluding Second-lien PDR, for the periods indicated:
		Three Months Ended
		March 31,
	(In thousands)	2015			2014
	Mortgage Insurance
	Balance at beginning of period	$	1,560,032		$	2,164,353
	Less reinsurance recoverables (1)	26,665			38,363
	Balance at beginning of period, net of reinsurance recoverables	1,533,367			2,125,990
	Add losses and LAE incurred in respect of default notices reported and unreported in:
	Current year (2)	80,437			108,849			-3
	Prior years	(35,360		)	(59,689		)	-3
	Total incurred	45,077			49,160
	Deduct paid claims and LAE related to:
	Current year (2)	—			—
	Prior years	207,095			306,941
	Total paid	207,095			306,941
	Balance at end of period, net of reinsurance recoverables	1,371,349			1,868,209
	Add reinsurance recoverables (1)	13,365			25,751
	Balance at end of period	$	1,384,714		$	1,893,960
	_________________________
	-1	Related to ceded losses on captive reinsurance transactions and the QSR Reinsurance Transactions. See Note 7 for additional information.
	-2	Related to underlying defaulted loans with a most recent default notice dated in the year indicated. For example, if a loan had defaulted in a prior year, but then subsequently cured and later re-defaulted in the current year, that default would be considered a current year default.
	-3	Amounts previously reported for losses and LAE incurred in respect of default notices reported and unreported in current year and prior years have been reclassified to correct an error. There was no net change to total incurred losses in any period as a result of these reclassifications. For the three months ended March 31, 2014, the amounts previously reported for losses and LAE incurred in respect of default notices reported and unreported in current year have been revised downward by approximately $33.8 million, with an equal and offsetting adjustment to the amount previously reported for default notices reported and unreported in prior years. For the years ended December 31, 2014, 2013 and 2012, the amounts previously reported related to losses and LAE incurred from current year default notices should have been lower by approximately $71.8 million, $65.0 million and $75.7 million, respectively, with equal and offsetting adjustments to the incurred loss amounts related to prior years’ default notices.
Rescissions And Denials [Table Text Block]	The following table illustrates the amount of First-lien claims submitted to us for payment that were rescinded or denied, for the periods indicated, net of any reinstatements of previous Rescissions or Claim Denials within each period. Net (reinstatements), Rescissions or Claim Denials related to the BofA Settlement Agreement prior to the February 1, 2015 Implementation Date represent such activities on loans that subsequently became subject to the BofA Settlement Agreement.
		Three Months Ended
		March 31,
	(In millions)	2015			2014
	Rescissions	$	3.8		$	6.4
	Claim Denials	5.6			18.9
	Net (reinstatements), Rescissions or Claim Denials related to the BofA Settlement Agreement	(24.1		)	3
	Net First-lien claims submitted for payment that were (reinstated), rescinded or denied (1)	$	(14.7	)	$	28.3
	______________________
	-1	Includes an amount related to a small number of submitted claims that were subsequently withdrawn by the insured.

Note_10_LongTerm_Debt_Tables

Note 10 - Long-Term Debt (Tables)	3 Months Ended
	Mar. 31, 2015
Long-term Debt, Unclassified [Abstract]
Schedule of Long-term Debt Instruments [Table Text Block]	The carrying value of our long-term debt at March 31, 2015 and December 31, 2014 was as follows:
	(In thousands)		March 31,			December 31,
			2015			2014
	9.00%	Senior Notes due 2017	$	192,870		$	192,605
	3.00%	Convertible Senior Notes due 2017 (1)	381,018			375,310
	2.25%	Convertible Senior Notes due 2019 (2)	345,084			342,011
	5.50%	Senior Notes due 2019	300,000			300,000
		Total long-term debt	$	1,218,972		$	1,209,926
	_______________________
	-1	The principal amount of these notes is $450 million.
	-2	The principal amount of these notes is $400 million.
Schedule of Liability and Equity Components of Convertible Debt [Table Text Block]	The convertible notes are reflected on our condensed consolidated balance sheets as follows:
		Convertible Senior Notes due 2017						Convertible Senior Notes due 2019
	(In thousands)	March 31,			December 31,			March 31,			December 31,
		2015			2014			2015			2014
	Liability component:
	Principal	$	450,000		$	450,000		$	400,000		$	400,000
	Less: Debt discount, net (1)	(68,982		)	(74,690		)	(54,916		)	(57,989		)
	Net carrying amount	$	381,018		$	375,310		$	345,084		$	342,011
	Equity component of currently redeemable convertible senior notes	$	68,982		$	74,690		$	—		$	—
	__________________
	-1	Included within long-term debt and is being amortized over the life of the convertible notes.
Schedule of Interest Expense Recognized Related to Convertible Debt [Table Text Block]	The following tables set forth total interest expense recognized related to the convertible notes for the periods indicated:
		Convertible Senior Notes due 2017
		Three Months Ended
		March 31,
	($ in thousands)	2015			2014
	Contractual interest expense	$	3,375		$	3,375
	Amortization of debt issuance costs	318			300
	Amortization of debt discount	5,708			5,186
	Total interest expense	$	9,401		$	8,861
	Effective interest rate of the liability component	9.75		%	9.75		%
		Convertible Senior Notes due 2019
		Three Months Ended
		March 31,
	($ in thousands)	2015			2014
	Contractual interest expense	$	2,250		$	2,250
	Amortization of debt issuance costs	328			316
	Amortization of debt discount	3,073			2,889
	Total interest expense	$	5,651		$	5,455
	Effective interest rate of the liability component	6.25		%	6.25		%

Note_11_Accumulated_Other_Comp1

Note 11 - Accumulated Other Comprehensive Income (Tables)	3 Months Ended
	Mar. 31, 2015
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]	The following table shows the rollforward of AOCI as of the periods indicated:
		Three Months Ended March 31, 2015
	(In thousands)	Before Tax			Tax Effect			Net of Tax
	Balance at beginning of period	$	79,208		$	27,723		$	51,485
	Other comprehensive income (“OCI”):
	Net foreign currency translation adjustments	(194		)	(68		)	(126		)
	Unrealized gains on investments:
	Unrealized holding gains arising during the period	9,929			3,475			6,454
	Less: Reclassification adjustment for net losses included in net income (1)	(51		)	(18		)	(33		)
	Net unrealized gains on investments	9,980			3,493			6,487
	Net unrealized gains from investments recorded as assets held for sale	2,812			984			1,828
	OCI	12,598			4,409			8,189
	Balance at end of period	$	91,806		$	32,132		$	59,674
		Three Months Ended March 31, 2014
	(In thousands)	Before Tax			Tax Effect			Net of Tax
	Balance at beginning of period	$	57,345		$	19,962		$	37,383
	OCI:
	Unrealized gains on investments:
	Unrealized holding gains arising during the period	2,670			1			2,669
	Less: Reclassification adjustment for net gains included in net income (1)	5			1			4
	Net unrealized gains on investments	2,665			—			2,665
	Net unrealized gains from investments recorded as assets held for sale	1,175			(121		)	1,296
	OCI	3,840			(121		)	3,961
	Balance at end of period	$	61,185		$	19,841		$	41,344
	_________________________
	-1	Included in net gains on investments and other financial instruments on our condensed consolidated statements of operations.

Note_13_Statutory_Information_1

Note 13 - Statutory Information (Tables)	3 Months Ended
	Mar. 31, 2015
Statutory Information [Abstract]
Statutory Accounting Practices Disclosure [Table Text Block]	Radian Guaranty’s statutory net income, statutory policyholders’ surplus and contingency reserve as of and for the periods indicated were as follows:
	(In millions)	As of and for the Three Months Ended		As of and for the Year Ended December 31, 2014
		31-Mar-15
	Statutory net income	$	110.8	$	273.7
	Statutory policyholders’ surplus	1,349.40		1,325.20
	Contingency reserve	487.6		389.4
Risk To Capital Calculation [Table Text Block]	Radian Guaranty’s Risk-to-capital calculation appears in the table below. For purposes of the Risk-to-capital calculation, as well as the Risk-to-capital requirements imposed by certain states, statutory capital is defined as the sum of statutory policyholders’ surplus (i.e., statutory capital and surplus) plus statutory contingency reserves.
		March 31,		December 31,
		2015		2014
	($ in millions)
	RIF, net (1)	$	31,324.00	$	30,615.70
	Statutory policyholders’ surplus	$	1,349.40	$	1,325.20
	Contingency reserve	487.6		389.4
	Statutory capital	$	1,837.00	$	1,714.60
	Risk-to-capital	17.1:1		17.9:1
	_______________________
	-1	Excludes risk ceded through reinsurance contracts (to third parties and affiliates) and RIF on defaulted loans.

Note_14_Selected_Financial_Inf1

Note 14 - Selected Financial Information of Registrant (Tables)	3 Months Ended
	Mar. 31, 2015
Condensed Financial Information of Parent Company Only Disclosure [Abstract]
Selected Financial Information Of Registrant [Table Text Block]
	(In thousands)	March 31,		December 31, 2014
		2015
	Investment in subsidiaries, at equity in net assets	$	2,960,604	$	2,746,915
	Total assets	3,870,760		3,759,275
	Long-term debt	1,218,972		1,209,926
	Total liabilities	1,594,866		1,587,525
	Equity component of currently redeemable convertible senior notes	68,982		74,690
	Total stockholders’ equity	2,206,912		2,097,060
	Total liabilities and stockholders’ equity	3,870,760		3,759,275

Note_16_Net_Income_Loss_Per_Sh1

Note 16 - Net Income (Loss) Per Share (Tables)	3 Months Ended
	Mar. 31, 2015
Earnings Per Share, Basic and Diluted [Abstract]
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	The calculation of the basic and diluted net income per share was as follows:
		Three Months Ended
		March 31,
	(In thousands, except share and per share amounts)	2015		2014
	Net income from continuing operations:
	Net income from continuing operations - basic	$	91,727	$	145,980
	Adjustment for dilutive Convertible Senior Notes due 2019, net of tax (1)	3,673		5,455
	Net income from continuing operations - diluted	$	95,400	$	151,435
	Net income:
	Net income from continuing operations - basic	$	91,727	$	145,980
	Income from discontinued operations, net of tax	530		56,779
	Net income - basic	92,257		202,759
	Adjustment for dilutive Convertible Senior Notes due 2019, net of tax (1)	3,673		5,455
	Net income - diluted	$	95,930	$	208,214
	Average common shares outstanding - basic	191,224		173,165
	Dilutive effect of Convertible Senior Notes due 2017	10,886		9,003
	Dilutive effect of Convertible Senior Notes due 2019	37,736		37,736
	Dilutive effect of stock-based compensation arrangements (2)	3,202		2,764
	Adjusted average common shares outstanding - diluted	243,048		222,668
	Net income per share:
	Basic:
	Net income from continuing operations	$	0.48	$	0.84
	Income from discontinued operations	—		0.33
	Net income	$	0.48	$	1.17
	Diluted:
	Net income from continuing operations	$	0.39	$	0.68
	Income from discontinued operations	—		0.26
	Net income	$	0.39	$	0.94
	________________
	-1	As applicable, includes coupon interest, amortization of discount and fees, and other changes in income or loss that would result from the assumed conversion.
	-2	For the three months ended March 31, 2015, 540,400 shares of our common stock equivalents issued under our stock-based compensation arrangements were not included in the calculation of diluted net income per share because they were anti-dilutive. For the three months ended March 31, 2014, 946,400 shares of our common stock equivalents issued under our stock-based compensation arrangements were not included in the calculation of diluted net income per share because they were anti-dilutive.

Note_1_Condensed_Consolidated_2

Note 1 - Condensed Consolidated Financial Statements - Basis of Presentation and Business Overview Capital and Liquidity (Details) (USD $)	3 Months Ended	0 Months Ended
	Mar. 31, 2015	Apr. 01, 2015
	segment
Business Overview [Abstract]
Number of Operating Segments	2
Mortgage Insurance Segment
Mortgage Insurance [Abstract]
Private Mortgage Insurance Protects Lenders For Loans Made With Less Than This Maximum Down Payment Percentage	20.00%
Percentage Of Primary Insurance On Domestic First-Lien Mortgages To Total Risk In Force	97.30%
First Lien Primary Mortgage Insurance Risk In Force	44,600,000,000
Percentage Of Pool Insurance On Domestic First-Lien Mortgages To Total Risk In Force	2.60%
Bank of America Settlement Agreement [Member] | Mortgage Insurance Segment
BAC Settlement Agreement [Abstract]
Loss Contingency, Settlement Agreement, Percentage of Subject Loans Not Held by Insureds or Are Non-GSE Investors	12.00%
Minimum [Member]
Basis of Presentation and Business Overview [Line Items]
Equity Method Investment, Ownership Percentage	20.00%
Maximum [Member]
Basis of Presentation and Business Overview [Line Items]
Equity Method Investment, Ownership Percentage	50.00%
Subsequent Event [Member] | Sale of Radian Asset Assurance [Member] | Parent Company
Business Overview [Abstract]
Sale of Stock, Percentage of Ownership before Transaction		100.00%
Mortgage Insurance [Abstract]
Disposal Group, Including Discontinued Operation, Consideration		810,000,000
Significant Acquisitions and Disposals, Acquisition Costs or Sale Proceeds		$789,000,000

Note_2_Discontinued_Operations2

Note 2 - Discontinued Operations (Details) (USD $)	3 Months Ended				12 Months Ended	0 Months Ended
	Mar. 31, 2015		Mar. 31, 2014		Dec. 31, 2014	Apr. 01, 2015
Significant Acquisitions and Disposals [Line Items]
Net investment income	$17,328,000		$15,318,000
Net gains on investments and other financial instruments	16,779,000		42,968,000
Revenues	290,663,000		258,174,000
Policy acquisition costs	7,750,000		7,017,000
Other operating expenses	54,576,000		54,507,000
Costs and Expenses	153,213,000		131,077,000
Income from discontinued operations, net of tax	530,000		56,779,000
Fixed-maturities available for sale—at fair value (amortized cost $677,040 and $528,660)	695,085,000				536,890,000
Available-for-sale Securities, Equity Securities	143,533,000				143,368,000
Trading securities—at fair value	1,574,795,000				1,633,584,000
Short-term investments—at fair value	1,194,280,000				1,300,872,000
Other invested assets	13,953,000				14,585,000
Other assets	356,713,000				375,491,000
Total assets held for sale	1,755,873,000	[1]	1,795,185,000	[1]	1,736,444,000
Unearned premiums	657,555,000		580,453,000		644,504,000
Reserve for losses and loss adjustment expense (“LAE”)	1,384,714,000		1,893,960,000		1,560,032,000
Other liabilities	310,642,000				326,743,000
Total liabilities held for sale	966,078,000				947,008,000
Net gains (losses) on other financial instruments	592,000		-318,000
Other income	1,432,000		1,126,000
Radian Asset Assurance [Member]
Significant Acquisitions and Disposals [Line Items]
Discontinued Operation, Provision for Loss (Gain) on Disposal, before Income Tax	-13,930,000		0
Premiums Earned, Net, Financial Guarantee Insurance Contracts	1,007,000		6,903,000
Net investment income	9,153,000		8,911,000
Net gains on investments and other financial instruments	13,668,000		22,182,000
Change in fair value of derivative instruments	2,625,000		50,086,000
Revenues	26,453,000		88,082,000
Provision for losses	502,000		5,649,000
Policy acquisition costs	-191,000		1,597,000
Other operating expenses	4,107,000		5,402,000
Costs and Expenses	4,418,000		12,648,000
Equity in net (loss) income of affiliates	-13,000		-13,000
Income from operations of businesses held for sale	22,022,000		75,421,000
Income tax provision on classification as held for sale	7,562,000		18,642,000
Income from discontinued operations, net of tax	530,000		56,779,000
Fixed-maturities available for sale—at fair value (amortized cost $677,040 and $528,660)	226,334,000				224,552,000
Available-for-sale Securities, Equity Securities	4,019,000				3,749,000
Trading securities—at fair value	679,972,000				689,887,000
Short-term investments—at fair value	449,391,000				435,413,000
Other invested assets	108,080,000				108,206,000
Other assets	288,077,000				274,637,000
Total assets held for sale	1,755,873,000				1,736,444,000
Unearned premiums	152,445,000				158,921,000
Reserve for losses and loss adjustment expense (“LAE”)	32,420,000				31,558,000
VIE debt	82,238,000				85,016,000
Derivative liabilities	187,462,000				183,370,000
Other liabilities	511,513,000				488,143,000
Total liabilities held for sale	966,078,000				947,008,000
Sale of Radian Asset Assurance [Member] | Parent Company
Significant Acquisitions and Disposals [Line Items]
Discontinued Operation, Provision for Loss (Gain) on Disposal, before Income Tax	13,900,000				468,000,000
Income from discontinued operations, net of tax	500,000
Subsequent Event [Member] | Sale of Radian Asset Assurance [Member] | Parent Company
Significant Acquisitions and Disposals [Line Items]
Sale of Stock, Percentage of Ownership before Transaction						100.00%
Disposal Group, Including Discontinued Operation, Consideration						810,000,000
Significant Acquisitions and Disposals, Acquisition Costs or Sale Proceeds						$789,000,000
[1]	Assets held for sale are not part of the Mortgage Insurance or Services segments.

Note_3_Segment_Reporting_Sched

Note 3 - Segment Reporting Schedule of Segment Reporting Information by Segment (Details) (USD $)	3 Months Ended
	Mar. 31, 2015		Mar. 31, 2014		Dec. 31, 2014	Dec. 31, 2013
Segment Reporting Information [Line Items]
Number of Operating Segments	2
Net premiums earned-insurance	$224,595,000		$198,762,000
Services revenue	30,529,000		0
Net investment income	17,328,000		15,318,000
Other income	1,432,000		1,126,000
Provision for losses	45,028,000		49,626,000
Policy acquisition costs	7,750,000		7,017,000
Direct cost of services	18,451,000		0
Other operating expenses before corporate allocations (3)	54,576,000		54,507,000
Cash and investments	3,678,850,000		3,302,787,000
Restricted cash	14,220,000		22,366,000		14,031,000
Goodwill	194,246,000		2,095,000
Other intangible assets, net	99,552,000		188,000
Assets held for sale (5)	1,755,873,000	[1]	1,795,185,000	[1]	1,736,444,000
Total assets (5)	6,813,855,000	[1]	5,528,985,000	[1]	6,859,963,000
Unearned premiums	657,555,000		580,453,000		644,504,000
Reserve for losses and LAE	1,384,714,000		1,893,960,000		1,560,032,000
Net Gains/Losses on All Financial Instruments	16,779,000		43,107,000	[2]
Business Combination, Acquisition Related Costs	-207,000		0
Mortgage Insurance Segment
Segment Reporting Information [Line Items]
Net premiums written—insurance	241,908,000		212,953,000
Increase in unearned premiums	-17,313,000		-14,191,000
Net premiums earned-insurance	224,595,000		198,762,000
Services revenue	0
Net investment income	17,328,000	[3]	15,318,000	[4]
Other income	1,331,000	[3]	996,000	[4]
Revenue Non GAAP Basis	243,254,000	[5]	215,076,000	[6]
Provision for losses	45,851,000		49,626,000
Change In Present Value of Estimated Credit Loss Payments			-139,000
Policy acquisition costs	7,750,000		7,017,000
Direct cost of services	0
Other operating expenses before corporate allocations (3)	34,050,000	[7]	37,764,000
Total Expenses Non-GAAP	87,651,000	[8]	94,546,000
Adjusted pretax operating income before corporate allocations	155,603,000		120,530,000
Allocation of corporate operating expenses (1)	9,758,000	[3]	15,884,000	[4]
Allocation of interest expense (1)	19,953,000	[3]	19,927,000	[4]
Adjusted pretax operating income (loss)	125,892,000	[10],[9]	84,719,000	[10],[9]
Cash and investments	3,669,413,000		3,302,763,000
Restricted cash	11,348,000		22,366,000
Goodwill	0		0
Other intangible assets, net	0		0
Total assets (5)	4,708,744,000	[1]	3,731,139,000	[1]
Unearned premiums	657,555,000		580,453,000
Reserve for losses and LAE	1,384,714,000		1,893,960,000		1,560,032,000	2,164,353,000
New Insurance Written	9,385,000,000		6,808,000,000
Costs and Expenses, Related Party	900,000
Mortgage and Real Estate Services Segment [Member]
Segment Reporting Information [Line Items]
Net premiums written—insurance	0		0
Increase in unearned premiums	0		0
Net premiums earned-insurance	0		0
Services revenue	30,742,000
Net investment income	0	[3]	0	[4]
Other income	790,000	[3]	130,000	[4]
Revenue Non GAAP Basis	31,532,000	[5]	130,000	[6]
Provision for losses	0		0
Change In Present Value of Estimated Credit Loss Payments			0
Policy acquisition costs	0		0
Direct cost of services	18,451,000
Other operating expenses before corporate allocations (3)	9,659,000	[7]	859,000
Total Expenses Non-GAAP	28,110,000	[8]	859,000
Adjusted pretax operating income before corporate allocations	3,422,000		-729,000
Allocation of corporate operating expenses (1)	981,000	[3]	0	[4]
Allocation of interest expense (1)	4,432,000	[3]	0	[4]
Adjusted pretax operating income (loss)	-1,991,000	[11]	-729,000	[11]
Cash and investments	9,437,000		24,000
Restricted cash	2,872,000		0
Goodwill	194,246,000		2,095,000		191,932,000	2,095,000
Other intangible assets, net	99,552,000		188,000
Total assets (5)	349,238,000	[1]	2,661,000	[1]
Unearned premiums	0		0
Reserve for losses and LAE	0		0
Revenue from Related Parties	900,000
Mortgage Insurance and Mortgage and Real Estate Services Segments [Member]
Segment Reporting Information [Line Items]
Net premiums written—insurance	241,908,000		212,953,000
Increase in unearned premiums	-17,313,000		-14,191,000
Net premiums earned-insurance	224,595,000		198,762,000
Services revenue	30,742,000
Net investment income	17,328,000	[3]	15,318,000	[4]
Other income	2,121,000	[3]	1,126,000	[4]
Revenue Non GAAP Basis	274,786,000	[5]	215,206,000	[6]
Provision for losses	45,851,000		49,626,000
Change In Present Value of Estimated Credit Loss Payments			-139,000
Policy acquisition costs	7,750,000		7,017,000
Direct cost of services	18,451,000
Other operating expenses before corporate allocations (3)	43,709,000	[7]	38,623,000
Total Expenses Non-GAAP	115,761,000	[8]	95,405,000
Adjusted pretax operating income before corporate allocations	159,025,000		119,801,000
Allocation of corporate operating expenses (1)	10,739,000	[3]	15,884,000	[4]
Allocation of interest expense (1)	24,385,000	[3]	19,927,000	[4]
Adjusted pretax operating income (loss)	123,901,000		83,990,000
Operating Expense [Member] | Continuing Operations [Member] | Mortgage Insurance Segment
Segment Reporting Information [Line Items]
Segment Reporting, Previously Allocated Income (Expense) to Discontinued Operations	-2,100,000		-4,100,000
Interest Expense [Member] | Continuing Operations [Member] | Mortgage Insurance Segment
Segment Reporting Information [Line Items]
Segment Reporting, Previously Allocated Income (Expense) to Discontinued Operations	-9,900,000		-14,600,000
Investment Income [Member] | Continuing Operations [Member] | Mortgage Insurance Segment
Segment Reporting Information [Line Items]
Segment Reporting, Previously Allocated Income (Expense) to Discontinued Operations	900,000		1,300,000
Other Income [Member] | Continuing Operations [Member] | Mortgage Insurance Segment
Segment Reporting Information [Line Items]
Segment Reporting, Previously Allocated Income (Expense) to Discontinued Operations			$100,000
[1]	Assets held for sale are not part of the Mortgage Insurance or Services segments.
[2]	The change in expected economic loss or recovery associated with our consolidated VIEs is included in adjusted pretax operating income above. Therefore, for purposes of this reconciliation, net gains on investments and other financial instruments has been adjusted by $0.1 million for the three months ended March 31, 2014 to reverse this item, which represents an amount that is not included in net income.
[3]	Includes certain corporate income and expenses that have been reallocated to the Mortgage Insurance segment that were previously allocated to the former financial guaranty segment, but were not reclassified to discontinued operations. These items include net investment income of $0.9 million, corporate overhead expenses of $2.1 million and interest expense of $9.9 million.
[4]	Includes certain corporate income and expenses that have been reallocated to the Mortgage Insurance segment that were previously allocated to the former financial guaranty segment, but were not reclassified to discontinued operations. These items include net investment income of $1.3 million, other income of $0.1 million, corporate overhead expenses of $4.1 million and interest expense of $14.6 million
[5]	Excludes net gains on investments and other financial instruments of $16.8 million, not included in adjusted pretax operating income. Includes inter-segment revenues of $0.9 million in the Services segment.
[6]	Excludes net gains on investments and other financial instruments of $43.1 million, not included in adjusted pretax operating income.
[7]	Excludes $0.2 million of acquisition-related expenses not included in segment other operating expenses.
[8]	Includes inter-segment expenses of $0.9 million in the Mortgage Insurance segment.
[9]	Includes inter-segment expenses of $0.9 million for the three months ended March 31, 2015.
[10]	Includes certain corporate income and expenses that have been reallocated to the Mortgage Insurance segment for all periods presented, as listed in the preceding detailed tables. These amounts represent items that were previously allocated to the former financial guaranty segment, but were not reclassified to discontinued operations.
[11]	Includes inter-segment revenues of $0.9 million for the three months ended March 31, 2015.

Note_3_Segment_Reporting_Recon

Note 3 - Segment Reporting Reconciliation of Segment to Consolidated Results Pretax (Details) (USD $)	3 Months Ended
	Mar. 31, 2015		Mar. 31, 2014
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Net Gains/Losses on All Financial Instruments	$16,779,000		$43,107,000	[1]
Business Combination, Acquisition Related Costs	-207,000		0
Amortization and impairment of intangible assets	3,023,000		0
Pretax income from continuing operations	137,450,000		127,097,000
Mortgage Insurance Segment
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Adjusted pretax operating income (loss)	125,892,000	[2],[3]	84,719,000	[2],[3]
Costs and Expenses, Related Party	900,000
Change In Present Value of Estimated Credit Loss Payments			139,000
Mortgage and Real Estate Services Segment [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Adjusted pretax operating income (loss)	-1,991,000	[4]	-729,000	[4]
Revenue from Related Parties	900,000
Change In Present Value of Estimated Credit Loss Payments			0
Mortgage Insurance and Mortgage and Real Estate Services Segments [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Adjusted pretax operating income (loss)	123,901,000		83,990,000
Pretax income from continuing operations	137,450,000		127,097,000
Change In Present Value of Estimated Credit Loss Payments			$139,000
[1]	The change in expected economic loss or recovery associated with our consolidated VIEs is included in adjusted pretax operating income above. Therefore, for purposes of this reconciliation, net gains on investments and other financial instruments has been adjusted by $0.1 million for the three months ended March 31, 2014 to reverse this item, which represents an amount that is not included in net income.
[2]	Includes inter-segment expenses of $0.9 million for the three months ended March 31, 2015.
[3]	Includes certain corporate income and expenses that have been reallocated to the Mortgage Insurance segment for all periods presented, as listed in the preceding detailed tables. These amounts represent items that were previously allocated to the former financial guaranty segment, but were not reclassified to discontinued operations.
[4]	Includes inter-segment revenues of $0.9 million for the three months ended March 31, 2015.

Note_4_Fair_Value_of_Financial3

Note 4 - Fair Value of Financial Instruments Fair Value Assets Liabilities by Hierarchy Level (Details) (USD $)	Mar. 31, 2015		Dec. 31, 2014		Mar. 31, 2014
Carrying (Reported) Amount, Fair Value Disclosure [Member]
Fair Value by Hierarchy Level [Line Items]
Other Invested Assets, Carrying Amount	$14,000,000		$14,600,000
Fair Value, Measurements, Recurring
Fair Value by Hierarchy Level [Line Items]
Total Investments at Fair Value	3,607,600,000	[1]	3,614,700,000	[2]
Total Assets at Fair Value	3,607,600,000		3,614,700,000
Fair Value, Assets, Level 2 to Level 1 Transfers, Amount	0				0
Fair Value, Assets, Level 1 to Level 2 Transfers, Amount	0				0
US government and agency securities | Fair Value, Measurements, Recurring
Fair Value by Hierarchy Level [Line Items]
Total Investments at Fair Value	633,600,000		839,900,000
State and municipal obligations | Fair Value, Measurements, Recurring
Fair Value by Hierarchy Level [Line Items]
Total Investments at Fair Value	353,000,000		362,800,000
Money market instruments | Fair Value, Measurements, Recurring
Fair Value by Hierarchy Level [Line Items]
Total Investments at Fair Value	601,300,000		600,300,000
Corporate bonds and notes | Fair Value, Measurements, Recurring
Fair Value by Hierarchy Level [Line Items]
Total Investments at Fair Value	1,115,000,000		992,800,000
RMBS | Fair Value, Measurements, Recurring
Fair Value by Hierarchy Level [Line Items]
Total Investments at Fair Value	128,100,000		132,300,000
CMBS | Fair Value, Measurements, Recurring
Fair Value by Hierarchy Level [Line Items]
Total Investments at Fair Value	247,900,000		246,800,000
Other ABS | Fair Value, Measurements, Recurring
Fair Value by Hierarchy Level [Line Items]
Total Investments at Fair Value	177,600,000		185,500,000
Foreign government securities | Fair Value, Measurements, Recurring
Fair Value by Hierarchy Level [Line Items]
Total Investments at Fair Value	35,300,000		37,700,000
Equity securities | Fair Value, Measurements, Recurring
Fair Value by Hierarchy Level [Line Items]
Total Investments at Fair Value	214,800,000	[3]	215,600,000	[3]
Other investments | Fair Value, Measurements, Recurring
Fair Value by Hierarchy Level [Line Items]
Total Investments at Fair Value	101,000,000	[4]	1,000,000	[5]
Fair Value, Inputs, Level 1 | Fair Value, Measurements, Recurring
Fair Value by Hierarchy Level [Line Items]
Total Investments at Fair Value	1,394,500,000	[1]	1,601,200,000	[2]
Total Assets at Fair Value	1,394,500,000		1,601,200,000
Assets Held-for-sale, Long Lived, Fair Value Disclosure	502,100,000		495,100,000
Fair Value, Inputs, Level 1 | US government and agency securities | Fair Value, Measurements, Recurring
Fair Value by Hierarchy Level [Line Items]
Total Investments at Fair Value	630,600,000		836,900,000
Fair Value, Inputs, Level 1 | State and municipal obligations | Fair Value, Measurements, Recurring
Fair Value by Hierarchy Level [Line Items]
Total Investments at Fair Value	0		0
Fair Value, Inputs, Level 1 | Money market instruments | Fair Value, Measurements, Recurring
Fair Value by Hierarchy Level [Line Items]
Total Investments at Fair Value	601,300,000		600,300,000
Fair Value, Inputs, Level 1 | Corporate bonds and notes | Fair Value, Measurements, Recurring
Fair Value by Hierarchy Level [Line Items]
Total Investments at Fair Value	0		0
Fair Value, Inputs, Level 1 | RMBS | Fair Value, Measurements, Recurring
Fair Value by Hierarchy Level [Line Items]
Total Investments at Fair Value	0		0
Fair Value, Inputs, Level 1 | CMBS | Fair Value, Measurements, Recurring
Fair Value by Hierarchy Level [Line Items]
Total Investments at Fair Value	0		0
Fair Value, Inputs, Level 1 | Other ABS | Fair Value, Measurements, Recurring
Fair Value by Hierarchy Level [Line Items]
Total Investments at Fair Value	0		0
Fair Value, Inputs, Level 1 | Foreign government securities | Fair Value, Measurements, Recurring
Fair Value by Hierarchy Level [Line Items]
Total Investments at Fair Value	0		0
Fair Value, Inputs, Level 1 | Equity securities | Fair Value, Measurements, Recurring
Fair Value by Hierarchy Level [Line Items]
Total Investments at Fair Value	162,600,000	[3]	164,000,000	[3]
Fair Value, Inputs, Level 1 | Other investments | Fair Value, Measurements, Recurring
Fair Value by Hierarchy Level [Line Items]
Total Investments at Fair Value	0	[4]	0	[5]
Fair Value, Inputs, Level 2 | Fair Value, Measurements, Recurring
Fair Value by Hierarchy Level [Line Items]
Total Investments at Fair Value	2,213,100,000	[1]	2,013,500,000	[2]
Total Assets at Fair Value	2,213,100,000		2,013,500,000
Assets Held-for-sale, Long Lived, Fair Value Disclosure	838,000,000		839,200,000
Fair Value, Inputs, Level 2 | US government and agency securities | Fair Value, Measurements, Recurring
Fair Value by Hierarchy Level [Line Items]
Total Investments at Fair Value	3,000,000		3,000,000
Fair Value, Inputs, Level 2 | State and municipal obligations | Fair Value, Measurements, Recurring
Fair Value by Hierarchy Level [Line Items]
Total Investments at Fair Value	353,000,000		362,800,000
Fair Value, Inputs, Level 2 | Money market instruments | Fair Value, Measurements, Recurring
Fair Value by Hierarchy Level [Line Items]
Total Investments at Fair Value	0		0
Fair Value, Inputs, Level 2 | Corporate bonds and notes | Fair Value, Measurements, Recurring
Fair Value by Hierarchy Level [Line Items]
Total Investments at Fair Value	1,115,000,000		992,800,000
Fair Value, Inputs, Level 2 | RMBS | Fair Value, Measurements, Recurring
Fair Value by Hierarchy Level [Line Items]
Total Investments at Fair Value	128,100,000		132,300,000
Fair Value, Inputs, Level 2 | CMBS | Fair Value, Measurements, Recurring
Fair Value by Hierarchy Level [Line Items]
Total Investments at Fair Value	247,900,000		246,800,000
Fair Value, Inputs, Level 2 | Other ABS | Fair Value, Measurements, Recurring
Fair Value by Hierarchy Level [Line Items]
Total Investments at Fair Value	177,600,000		185,500,000
Fair Value, Inputs, Level 2 | Foreign government securities | Fair Value, Measurements, Recurring
Fair Value by Hierarchy Level [Line Items]
Total Investments at Fair Value	35,300,000		37,700,000
Fair Value, Inputs, Level 2 | Equity securities | Fair Value, Measurements, Recurring
Fair Value by Hierarchy Level [Line Items]
Total Investments at Fair Value	52,200,000	[3]	51,600,000	[3]
Fair Value, Inputs, Level 2 | Other investments | Fair Value, Measurements, Recurring
Fair Value by Hierarchy Level [Line Items]
Total Investments at Fair Value	101,000,000	[4]	1,000,000	[5]
Fair Value, Inputs, Level 2 | Trust Preferred Securities [Member] | Fair Value, Measurements, Recurring
Fair Value by Hierarchy Level [Line Items]
Total Investments at Fair Value	100,000,000
Fair Value, Inputs, Level 2 | Short Term CDs | Fair Value, Measurements, Recurring
Fair Value by Hierarchy Level [Line Items]
Total Investments at Fair Value	1,000,000
Fair Value, Inputs, Level 3 | Fair Value, Measurements, Recurring
Fair Value by Hierarchy Level [Line Items]
Total Assets at Fair Value	0		0
Assets Held-for-sale, Long Lived, Fair Value Disclosure	102,800,000		102,600,000
Variable Interest Entity Debt			$3,800,000
Total Level III Liabilities			100.00%
[1]	Does not include certain other invested assets ($14.0 million), primarily invested in limited partnerships, accounted for as cost-method investments and not measured at fair value. Also excludes investments classified as assets held for sale of $502.1 million, $838.0 million and $102.8 million, with fair values categorized in Level I, Level II and Level III, respectively.
[2]	Does not include certain other invested assets ($14.6 million), primarily invested in limited partnerships, accounted for as cost-method investments and not measured at fair value. Also excludes investments classified as assets held for sale of $495.1 million, $839.2 million and $102.6 million, with fair values categorized in Level I, Level II and Level III, respectively.
[3]	Comprising broadly diversified domestic equity mutual funds and certain common stocks included within Level I and various preferred stocks invested across numerous companies and industries included within Level II.
[4]	Comprising short-term certificates of deposit ($1.0 million) and short-term commercial paper ($100.0 million) included within Level II.
[5]	Comprising short-term certificates of deposit.

Note_4_Fair_Value_of_Financial4

Note 4 - Fair Value of Financial Instruments Other Fair Value Disclosure (Details) (USD $)	Mar. 31, 2015		Dec. 31, 2014
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt	$1,218,972,000		$1,209,926,000
Carrying (Reported) Amount, Fair Value Disclosure [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other Invested Assets, Carrying Amount	14,000,000		14,600,000
Long-term debt	1,219,000,000		1,209,900,000
Estimate of Fair Value, Fair Value Disclosure [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other invested assets fair value disclosure	20,700,000	[1]	20,500,000	[1]
Long-term Debt, Fair Value	$1,862,100,000	[1]	$1,859,300,000	[1]
[1]	These estimated fair values would be classified in Level II of the fair value hierarchy.

Note_5_Investments_Unrealized_

Note 5 - Investments Unrealized Gain (Loss) on Investments (Details) (USD $)	Mar. 31, 2015		Dec. 31, 2014
In Thousands, unless otherwise specified
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Debt Securities, Amortized Cost Basis	$677,040		$528,660
Available-for-sale Securities	838,618		680,258
Available-for-sale Equity Securities, Amortized Cost Basis	76,900		76,900
Available-for-sale Securities, Equity Securities	143,533		143,368
Amortized Cost Debt and Equity Securities	753,940		605,560
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	86,425		77,231
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	1,747		2,533
US government and agency securities
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Debt Securities, Amortized Cost Basis	5,727		5,709
Available-for-sale Securities	5,783		5,751
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax	56		48
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax	0		6
US States and Political Subdivisions Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Debt Securities, Amortized Cost Basis	17,698		17,727
Available-for-sale Securities	18,971		18,910
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax	1,273		1,183
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax	0		0
Corporate bonds and notes
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Debt Securities, Amortized Cost Basis	402,308		277,678
Available-for-sale Securities	415,333		284,408
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax	13,636		7,288
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax	611		558
RMBS
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Debt Securities, Amortized Cost Basis	40,334		41,467
Available-for-sale Securities	41,845		42,520
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax	1,511		1,053
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax	0		0
CMBS
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Debt Securities, Amortized Cost Basis	67,194		57,358
Available-for-sale Securities	69,373		58,234
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax	2,181		876
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax	2		0
Other ABS
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Debt Securities, Amortized Cost Basis	122,605		109,420
Available-for-sale Securities	122,237		107,701
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax	559		8
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax	927		1,727
Foreign government securities
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Debt Securities, Amortized Cost Basis	21,174		19,301
Available-for-sale Securities	21,543		19,366
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax	576		307
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax	207		242
Debt Securities
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Debt Securities, Amortized Cost Basis	677,040		528,660
Available-for-sale Securities	695,085		536,890
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax	19,792		10,763
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax	1,747		2,533
Equity securities
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Equity Securities, Amortized Cost Basis	76,900	[1]	76,900	[2]
Available-for-sale Securities, Equity Securities	143,533	[1]	143,368	[2]
Available-for-sale Equity Securities, Accumulated Gross Unrealized Gain, before Tax	66,633	[1]	66,468	[2]
Available-for-sale Equity Securities, Accumulated Gross Unrealized Loss, before Tax	0	[1]	0	[2]
Private Equity Funds, Domestic [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Equity Securities	143,100		143,000
Preferred and Common Stock [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Equity Securities	$400		$400
[1]	Comprising broadly diversified domestic equity mutual funds ($143.1 million fair value) and a preferred stock investment in Freddie Mac ($0.4 million fair value).
[2]	Comprising broadly diversified domestic equity mutual funds ($143.0 million fair value) and a preferred stock investment in Freddie Mac ($0.4 million fair value).

Note_5_Investments_Investments

Note 5 - Investments Investments Trading Securities (Details) (USD $)	3 Months Ended	12 Months Ended
	Mar. 31, 2015	Dec. 31, 2014
Schedule of Trading Securities and Other Trading Assets [Line Items]
Marketable Securities, Unrealized Gain (Loss)	$18,800,000	$65,700,000
Trading Securities	1,574,795,000	1,633,584,000
US government and agency securities
Schedule of Trading Securities and Other Trading Assets [Line Items]
Trading Securities	135,801,000	134,530,000
State and municipal obligations
Schedule of Trading Securities and Other Trading Assets [Line Items]
Trading Securities	334,052,000	343,926,000
Corporate bonds and notes
Schedule of Trading Securities and Other Trading Assets [Line Items]
Trading Securities	699,621,000	708,361,000
RMBS
Schedule of Trading Securities and Other Trading Assets [Line Items]
Trading Securities	86,294,000	89,810,000
CMBS
Schedule of Trading Securities and Other Trading Assets [Line Items]
Trading Securities	178,563,000	188,615,000
Other ABS
Schedule of Trading Securities and Other Trading Assets [Line Items]
Trading Securities	55,386,000	77,755,000
Foreign government securities
Schedule of Trading Securities and Other Trading Assets [Line Items]
Trading Securities	13,731,000	18,331,000
Equity securities
Schedule of Trading Securities and Other Trading Assets [Line Items]
Trading Securities	$71,347,000	$72,256,000

Note_5_Investments_Gain_Loss_o

Note 5 - Investments Gain (Loss) on Investments (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Gain (Loss) on Investments [Line Items]
Gain (Loss) on Sale of Other Investments	$105	$10
Realized Gain (Loss) on Marketable Securities and Cost Method Investments, Excluding Other than Temporary Impairments, and Other Investments	-4,514	-4,345
Unrealized (losses) gains on trading securities	20,701	47,631
Total net gains on investments	16,187	43,286
Net gains (losses) on other financial instruments	592	-318
Net gains on investments and other financial instruments	16,779	42,968
Fixed Maturities [Member]
Gain (Loss) on Investments [Line Items]
Marketable Securities, Realized Gain (Loss), Excluding Other than Temporary Impairments	0	-9
Available-for-sale Securities, Gross Realized Gain (Loss), Excluding Other than Temporary Impairments	-51	5
Trading Securities [Member]
Gain (Loss) on Investments [Line Items]
Trading Securities, Realized Gain (Loss)	($4,568)	($4,351)

Note_5_Investments_Schedule_of

Note 5 - Investments Schedule of Unrealized Losses (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified	security	security
Continuous Loss Position Less Than Twelve Months
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Less than One Year	49	62
Fair value available-for-sale securities	$102,674	$144,626
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Loss	1,471	2,379
Continuous Unrealized Loss Position, Twelve Months Or Greater
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Greater than or Equal to One Year	3	2
Fair value available-for-sale securities	9,442	4,482
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	276	154
Continuous Loss Position, Total
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions	52	64
Fair value available-for-sale securities	112,116	149,108
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	1,747	2,533
US government and agency securities
Continuous Loss Position Less Than Twelve Months
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Less than One Year		0
Fair value available-for-sale securities		0
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Loss		0
Continuous Unrealized Loss Position, Twelve Months Or Greater
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Greater than or Equal to One Year		1
Fair value available-for-sale securities		3,455
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss		6
Continuous Loss Position, Total
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions		1
Fair value available-for-sale securities		3,455
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss		6
Corporate bonds and notes
Continuous Loss Position Less Than Twelve Months
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Less than One Year	22	24
Fair value available-for-sale securities	41,307	40,917
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Loss	445	410
Continuous Unrealized Loss Position, Twelve Months Or Greater
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Greater than or Equal to One Year	1	1
Fair value available-for-sale securities	1,024	1,027
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	166	148
Continuous Loss Position, Total
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions	23	25
Fair value available-for-sale securities	42,331	41,944
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	611	558
CMBS
Continuous Loss Position Less Than Twelve Months
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Less than One Year	1
Fair value available-for-sale securities	2,057
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Loss	2
Continuous Unrealized Loss Position, Twelve Months Or Greater
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Greater than or Equal to One Year	0
Fair value available-for-sale securities	0
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	0
Continuous Loss Position, Total
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions	1
Fair value available-for-sale securities	2,057
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	2
Other ABS
Continuous Loss Position Less Than Twelve Months
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Less than One Year	21	34
Fair value available-for-sale securities	54,604	97,356
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Loss	817	1,727
Continuous Unrealized Loss Position, Twelve Months Or Greater
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Greater than or Equal to One Year	2	0
Fair value available-for-sale securities	8,418	0
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	110	0
Continuous Loss Position, Total
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions	23	34
Fair value available-for-sale securities	63,022	97,356
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	927	1,727
Foreign government securities
Continuous Loss Position Less Than Twelve Months
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Less than One Year	5	4
Fair value available-for-sale securities	4,706	6,353
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Loss	207	242
Continuous Unrealized Loss Position, Twelve Months Or Greater
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Greater than or Equal to One Year	0	0
Fair value available-for-sale securities	0	0
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	0	0
Continuous Loss Position, Total
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions	5	4
Fair value available-for-sale securities	4,706	6,353
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	$207	$242

Note_5_Investments_Schedule_of1

Note 5 - Investments Schedule of Contractual Maturities (Details) (USD $)	21 Months Ended		39 Months Ended
	Mar. 31, 2015		Mar. 31, 2015		Dec. 31, 2014	Aug. 29, 2017
Available-for-sale Securities, Amortized Cost
Available-for-sale Debt Securities, Amortized Cost Basis	$677,040,000		$677,040,000		$528,660,000
Available-for-sale Securities, Fair Value
Available-for-sale securities, fair value	695,085,000		695,085,000		536,890,000
Debt Securities
Available-for-sale Securities, Amortized Cost
Available-for-sale Debt Securities, Amortized Cost Basis	677,040,000		677,040,000
Available-for-sale Securities, Fair Value
Available-for-sale securities, fair value	695,085,000		695,085,000
Non Asset Backed Security Investments, Contractual Maturities
Available-for-sale Securities, Amortized Cost
Due in one year or less	2,262,000	[1]	2,262,000	[1]
Due after one year through five years	44,413,000	[1]	44,413,000	[1]
Due after five years through ten years	257,586,000	[1]	257,586,000	[1]
Due after ten years	142,646,000	[1]	142,646,000	[1]
Available-for-sale Securities, Fair Value
Due in one year or less	2,297,000	[1]	2,297,000	[1]
Due after one year through five years	44,741,000	[1]	44,741,000	[1]
Due after five years through ten years	263,269,000	[1]	263,269,000	[1]
Due after ten years	151,323,000	[1]	151,323,000	[1]
RMBS
Available-for-sale Securities, Amortized Cost
Available-for-sale Securities, Debt Maturities, without Single Maturity Date, Amortized Cost Basis	40,334,000	[2]	40,334,000	[2]
Available-for-sale Securities, Fair Value
Available-for-sale Securities, Debt Maturities, without Single Maturity Date, Fair Value	41,845,000	[2]	41,845,000	[2]
CMBS
Available-for-sale Securities, Amortized Cost
Available-for-sale Securities, Debt Maturities, without Single Maturity Date, Amortized Cost Basis	67,194,000	[2]	67,194,000	[2]
Available-for-sale Securities, Fair Value
Available-for-sale Securities, Debt Maturities, without Single Maturity Date, Fair Value	69,373,000	[2]	69,373,000	[2]
Other ABS
Available-for-sale Securities, Amortized Cost
Available-for-sale Securities, Debt Maturities, without Single Maturity Date, Amortized Cost Basis	122,605,000	[2]	122,605,000	[2]
Available-for-sale Securities, Fair Value
Available-for-sale Securities, Debt Maturities, without Single Maturity Date, Fair Value	122,237,000	[2]	122,237,000	[2]
Mortgage Insurance Segment | 2013 Freddie Mac Agreement [Member] | Minimum [Member] | Scenario, Forecast [Member]
Available-for-sale Securities, Fair Value
Restricted Investments Held as Collateral for Master Transaction Agreement, Net						205,000,000
Radian Guaranty Inc [Member] | 2013 Freddie Mac Agreement [Member]
Available-for-sale Securities, Fair Value
Restricted Investments Held as Collateral for Master Transaction Agreement, Net	210,300,000		210,300,000		209,300,000
Primary Mortgage Product [Member] | First Lien Position [Member] | Mortgage Insurance Segment | 2013 Freddie Mac Agreement [Member]
Available-for-sale Securities, Fair Value
Final Loss Mitigation Activity	122,000,000
Not Final Loss Mitigation Activity			$18,000,000
[1]	Actual maturities may differ as a result of calls before scheduled maturity.
[2]	RMBS, CMBS, and Other ABS are shown separately, as they are not due at a single maturity date.

Note_6_Goodwill_and_Other_Inta2

Note 6 - Goodwill and Other Intangible Assets, Net Schedule of Goodwill (Details) (USD $)	3 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014	Mar. 31, 2014
Goodwill [Line Items]
Goodwill, net			$2,095
Goodwill, net	194,246		2,095
Mortgage and Real Estate Services Segment [Member]
Goodwill [Line Items]
Goodwill, Gross	194,027	2,095
Goodwill, Impaired, Accumulated Impairment Loss	-2,095	0
Goodwill, net	191,932	2,095	2,095
Goodwill, Acquired During Period	2,314	191,932
Goodwill, Impairment Loss	0	-2,095
Goodwill, Gross	196,341	194,027
Goodwill, Impaired, Accumulated Impairment Loss	-2,095	-2,095
Goodwill, net	194,246	191,932	2,095
Clayton Holdings, LLC [Member] | Series of Individually Immaterial Business Acquisitions [Member]
Goodwill [Line Items]
Goodwill, Acquired During Period	$2,300

Note_6_Goodwill_and_Other_Inta3

Note 6 - Goodwill and Other Intangible Assets, Net Schedule of Finite-Lived Intangible Assets (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Schedule of Finite-Lived Intangible Assets and Goodwill [Line Items]
Finite-Lived Intangible Assets, Gross	$109,121	$102,858
Finite-Lived Intangible Assets, Accumulated Amortization	-9,569	-6,550
Finite-Lived Intangible Assets, Net	99,552	96,308
Customer Relationships [Member]
Schedule of Finite-Lived Intangible Assets and Goodwill [Line Items]
Finite-Lived Intangible Assets, Gross	83,016	79,203
Finite-Lived Intangible Assets, Accumulated Amortization	-4,884	-2,917
Finite-Lived Intangible Assets, Net	78,132	76,286
Technology-Based Intangible Assets [Member]
Schedule of Finite-Lived Intangible Assets and Goodwill [Line Items]
Finite-Lived Intangible Assets, Gross	10,940	8,970
Finite-Lived Intangible Assets, Accumulated Amortization	-1,189	-797
Finite-Lived Intangible Assets, Net	9,751	8,173
Trademarks [Member]
Schedule of Finite-Lived Intangible Assets and Goodwill [Line Items]
Finite-Lived Intangible Assets, Gross	8,300	7,860
Finite-Lived Intangible Assets, Accumulated Amortization	-591	-393
Finite-Lived Intangible Assets, Net	7,709	7,467
Order or Production Backlog [Member]
Schedule of Finite-Lived Intangible Assets and Goodwill [Line Items]
Finite-Lived Intangible Assets, Gross	6,680	6,680
Finite-Lived Intangible Assets, Accumulated Amortization	-2,850	-2,406
Finite-Lived Intangible Assets, Net	3,830	4,274
Noncompete Agreements [Member]
Schedule of Finite-Lived Intangible Assets and Goodwill [Line Items]
Finite-Lived Intangible Assets, Gross	185	145
Finite-Lived Intangible Assets, Accumulated Amortization	-55	-37
Finite-Lived Intangible Assets, Net	$130	$108

Note_6_Goodwill_and_Other_Inta4

Note 6 - Goodwill and Other Intangible Assets, Net Schedule of Future Amortization Expense for Finite Lived Assets (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Finite-Lived Intangible Assets, Amortization Expense, Remainder of Fiscal Year	$9,824
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months	12,553
Finite-Lived Intangible Assets, Amortization Expense, Year Two	11,911
Finite-Lived Intangible Assets, Amortization Expense, Year Three	11,280
Finite-Lived Intangible Assets, Amortization Expense, Year Four	10,044
Finite-Lived Intangible Assets, Amortization Expense, Year Five	8,492
Finite-Lived Intangible Assets, Amortization Expense, after Year Five	$35,448
Finite-Lived Intangible Assets, Remaining Amortization Period	15 years

Note_7_Reinsurance_Reinsurance

Note 7 - Reinsurance Reinsurance Premiums Written and Earned (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Premiums Earned, Net [Abstract]
Net premiums earned-insurance	$224,595	$198,762
Mortgage Insurance Segment
Premiums Written, Net [Abstract]
Direct Premiums Written	255,248	229,322
Assumed Premiums Written	47	473
Ceded Premiums Written	-13,387	-16,089
Net premiums written	241,908	213,706
Premiums Earned, Net [Abstract]
Direct Premiums Earned	242,164	215,876
Assumed Premiums Earned	13	12
Ceded Premiums Earned	-17,582	-17,126
Net premiums earned-insurance	$224,595	$198,762

Note_7_Reinsurance_Reinsurance1

Note 7 - Reinsurance Reinsurance Transactions (Details) (Radian Guaranty [Member], USD $)	1 Months Ended	3 Months Ended		12 Months Ended
	Jan. 31, 2015	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014	Dec. 31, 2012
					transaction
Reinsurance Transaction Details [Line Items]
Number of Quota Share Reinsurance Agreements					2
Initial Quota Share Reinsurance Transaction [Member]
Reinsurance Transaction Details [Line Items]
First Lien Primary Mortgage Insurance Risk In Force Ceded		$1,100,000,000
Ceded Premiums Written		4,067,000	5,304,000
Ceded Premiums Earned		6,018,000	6,807,000
Fees and Commissions		880,000	1,326,000
Ceded Insurance Commission Percentage		20.00%		25.00%
Percentage of Ceded Insurance Subjected to Change in Commission Percentage	66.67%
Second Quota Share Reinsurance Transaction [Member]
Reinsurance Transaction Details [Line Items]
First Lien Primary Mortgage Insurance Risk In Force Ceded		1,500,000,000
Ceded Premiums Written		6,529,000	7,293,000
Ceded Premiums Earned		8,768,000	6,585,000
Fees and Commissions		2,285,000	2,553,000
Maximum [Member] | Initial Quota Share Reinsurance Transaction [Member]
Reinsurance Transaction Details [Line Items]
First Lien Primary Mortgage Insurance Risk In Force Ceded		1,600,000,000
Maximum [Member] | Second Quota Share Reinsurance Transaction [Member]
Reinsurance Transaction Details [Line Items]
First Lien Primary Mortgage Insurance Risk In Force Ceded		$1,600,000,000

Note_8_Other_Assets_Details

Note 8. Other Assets (Details) (USD $)	Mar. 31, 2015		Dec. 31, 2014
Deposit with the IRS (See Note 12)	$88,557,000		$88,557,000
Corporate-owned life insurance	81,367,000		80,755,000
Prepaid reinsurance premiums	53,088,000		57,291,000
Property and equipment (1)	28,875,000	[1]	27,248,000	[1]
Accrued investment income	18,846,000		20,022,000
Reinsurance recoverables	15,155,000		28,119,000
Deferred policy acquisition costs	10,013,000		12,003,000
Other	60,812,000		61,496,000
Total other assets	356,713,000		375,491,000
Property and Equipment, Owned, Accumulated Depreciation	$101,600,000		$100,200,000
[1]	Property and equipment, at cost less accumulated depreciation of $101.6 million and $100.2 million at March 31, 2015 and December 31, 2014, respectively.

Note_9_Losses_and_LAE_Mortgage

Note 9 - Losses and LAE Mortgage Insurance Reserves by Product (Details) (USD $)	Mar. 31, 2015		Dec. 31, 2014		Mar. 31, 2014		Dec. 31, 2013
In Thousands, unless otherwise specified
Liability for Future Policy Benefit, by Product Segment [Line Items]
Reinsurance recoverables	$15,155		$28,119
Reserve for losses and loss adjustment expense (“LAE”)	1,384,714		1,560,032		1,893,960
Mortgage Insurance Segment
Liability for Future Policy Benefit, by Product Segment [Line Items]
Reinsurance recoverables	13,365	[1]	26,665	[1]	25,751	[1]	38,363	[1]
Reserve for losses and loss adjustment expense (“LAE”)	1,384,714		1,560,032		1,893,960		2,164,353
Prime Mortgage Insurance Product [Member] | Mortgage Insurance Segment
Liability for Future Policy Benefit, by Product Segment [Line Items]
Liability for Unpaid Claims	640,919		700,174
First Lien Mortgage Insurance Products [Member] | Mortgage Insurance Segment
Liability for Future Policy Benefit, by Product Segment [Line Items]
Reserve for losses and loss adjustment expense (“LAE”)	1,383,659		1,558,615
Second Lien Mortgage Insurance Product [Member] | Mortgage Insurance Segment
Liability for Future Policy Benefit, by Product Segment [Line Items]
Reserve for losses and loss adjustment expense (“LAE”)	1,055	[2]	1,417	[2]
Alt A Mortgage Insurance Product [Member] | Mortgage Insurance Segment
Liability for Future Policy Benefit, by Product Segment [Line Items]
Liability for Unpaid Claims	278,350		292,293
A Minus and Below Mortgage Insurance Product [Member] | Mortgage Insurance Segment
Liability for Future Policy Benefit, by Product Segment [Line Items]
Liability for Unpaid Claims	163,390		179,103
Primary Mortgage Product [Member] | Mortgage Insurance Segment
Liability for Future Policy Benefit, by Product Segment [Line Items]
Liability for Incurred but Not Reported Claims	167,204		223,114
Liability for Claims Adjustment Expense	53,210		56,164
Reinsurance recoverables	13,365	[3]	26,665	[3]
Total Primary Insurance Mortgage Insurance Products [Member] | Mortgage Insurance Segment
Liability for Future Policy Benefit, by Product Segment [Line Items]
Reserve for losses and loss adjustment expense (“LAE”)	1,316,438		1,477,513
Pool Insurance Mortgage Insurance Product [Member] | Mortgage Insurance Segment
Liability for Future Policy Benefit, by Product Segment [Line Items]
Liability for Unpaid Claims	62,943		75,785
Liability for Incurred but Not Reported Claims	1,227		1,775
Liability for Claims Adjustment Expense	3,051		3,542
Reserve for losses and loss adjustment expense (“LAE”)	$67,221		$81,102
[1]	Related to ceded losses on captive reinsurance transactions and the QSR Reinsurance Transactions. See Note 7 for additional information.
[2]	Does not include our Second-lien PDR that is included in other liabilities.
[3]	Primarily represents ceded losses on captive transactions and the QSR Reinsurance Transactions.

Note_9_Losses_and_LAE_Mortgage1

Note 9 - Losses and LAE Mortgage Insurance Loss Reserves Rollforward (Details) (USD $)	3 Months Ended				12 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015		Mar. 31, 2014		Dec. 31, 2014		Dec. 31, 2013	Dec. 31, 2012
Deduct paid claims and LAE related to [Abstract]
Add reinsurance recoverables	$15,155				28,119
Balance at March 31	1,384,714		1,893,960		1,560,032
Mortgage Insurance Segment
Loss reserve [Roll Forward]
Balance at January 1	1,560,032		2,164,353		2,164,353
Less reinsurance recoverables	26,665	[1]	38,363	[1]	38,363	[1]
Balance at beginning of period, net of reinsurance recoverables	1,533,367		2,125,990		2,125,990
Add losses and LAE incurred in respect of default notices reported and unreported in [Abstract]
Current year	80,437	[2]	108,849	[2],[3]
Prior years	-35,360		-59,689	[3]
Total incurred losses and LAE	45,077		49,160
Deduct paid claims and LAE related to [Abstract]
Paid Losses and LAE Current year	0	[2]	0	[2]
Paid losses and LAE Prior years	207,095		306,941
Total paid losses and LAE	207,095		306,941
Balance at end of period, net of reinsurance recoverables	1,371,349		1,868,209
Add reinsurance recoverables	13,365	[1]	25,751	[1]
Balance at March 31	1,384,714		1,893,960
Mortgage Insurance Segment | Primary Mortgage Product [Member]
Default To Claim Rate Detail [Abstract]
Weighted Average Default To Claim Rate Assumption Net Of Denials Rescissions and Reinstatements	53.00%				52.00%
Weighted Average Default To Claim Rate Assumption Excluding Pending Claims Net Of Denials And Rescissions	47.00%
Default To Claim Rate Estimate, Gross, For New Defaults	15.00%				16.00%
Default To Claim Rate Estimate, Gross, For Pre-Foreclosure Stage Defaults	65.00%
Gross Default To Claim Rate Estimate	81.00%
Bank of America Settlement Agreement [Member] | Mortgage Insurance Segment
Deduct paid claims and LAE related to [Abstract]
Total paid losses and LAE	98,500
Classification Error [Member] | Mortgage Insurance Segment
Add losses and LAE incurred in respect of default notices reported and unreported in [Abstract]
Current year			-33,800		-71,800		-65,000	-75,700
Prior years			$33,800		71,800		$65,000	$75,700
[1]	Related to ceded losses on captive reinsurance transactions and the QSR Reinsurance Transactions. See Note 7 for additional information.
[2]	Related to underlying defaulted loans with a most recent default notice dated in the year indicated. For example, if a loan had defaulted in a prior year, but then subsequently cured and later re-defaulted in the current year, that default would be considered a current year default.
[3]	Amounts previously reported for losses and LAE incurred in respect of default notices reported and unreported in current year and prior years have been reclassified to correct an error. There was no net change to total incurred losses in any period as a result of these reclassifications. For the three months ended March 31, 2014, the amounts previously reported for losses and LAE incurred in respect of default notices reported and unreported in current year have been revised downward by approximately $33.8 million, with an equal and offsetting adjustment to the amount previously reported for default notices reported and unreported in prior years. For the years ended December 31, 2014, 2013 and 2012, the amounts previously reported related to losses and LAE incurred from current year default notices should have been lower by approximately $71.8 million, $65.0 million and $75.7 million, respectively, with equal and offsetting adjustments to the incurred loss amounts related to prior years’ default notices.

Note_9_Losses_and_LAE_Rescissi

Note 9 - Losses and LAE Rescissions And Denials (Details) (Mortgage Insurance Segment, USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Claims Rescissions and Denials [Abstract]
Rescissions, Net of Reinstatements	$3.80	$6.40
Claim Denials, Net of Reinstatements	5.6	18.9
Claim Rescissions And Denials Related to Settlement Agreements	-24.1	3
Decrease To Our Loss Reserves Due To Estimated Rescissions And Denials	115		125
Liability for Unpaid Claims and Claims Adjustment Expense, Incurred but Not Reported (IBNR) Claims, Amount	108.6		163.6
Gross Exposure Related to Denied Claims From Previous Twelve Months	85.5
Gross Exposure Related to Rescinded Policies Within Twenty Four Months	79.8
Net Exposure Related to Claim Curtailments Within Twenty Four Months	44.4
Accrued Liability For Premiums Expected To Be Refunded From Rescissions	7.2		9
Claim Rescissions And Denials, Net of Reinstatements	-14.7	28.3
Claims Denied in the Last Twelve Months [Member]
Claims Rescissions and Denials [Abstract]
Liability for Unpaid Claims and Claims Adjustment Expense, Incurred but Not Reported (IBNR) Claims, Amount	13.6
Curtailed Claim Payments in the Last Twenty Four Months [Member]
Claims Rescissions and Denials [Abstract]
Liability for Unpaid Claims and Claims Adjustment Expense, Incurred but Not Reported (IBNR) Claims, Amount	3.4
Policies Rescinded in the Last Twenty Four Months [Member]
Claims Rescissions and Denials [Abstract]
Liability for Unpaid Claims and Claims Adjustment Expense, Incurred but Not Reported (IBNR) Claims, Amount	0.8
Bank of America Settlement Agreement [Member]
Claims Rescissions and Denials [Abstract]
Liability for Unpaid Claims and Claims Adjustment Expense, Incurred but Not Reported (IBNR) Claims, Amount	$85.20		$133
Loss Contingency, Settlement Agreement, Percentage of Subject Loans Not Held by Insureds or Are Non-GSE Investors	12.00%

Note_10_LongTerm_Debt_Schedule

Note 10 - Long-Term Debt Schedule of Long Term Debt (Details) (USD $)	Mar. 31, 2015		Dec. 31, 2014
In Thousands, unless otherwise specified
Debt Instrument [Line Items]
Long-term debt	$1,218,972		$1,209,926
Senior Notes Due 2017
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	9.00%
Long-term debt	192,870		192,605
Convertible Senior Notes Due 2017
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	3.00%
Long-term debt	381,018	[1]	375,310	[1]
Convertible Senior Notes Due 2019
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	2.25%
Long-term debt	345,084	[2]	342,011	[2]
Senior Notes Due 2019 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	5.50%
Long-term debt	300,000		300,000
Total Long Term Debt
Debt Instrument [Line Items]
Long-term debt	1,218,972		1,209,926
Convertible Debt [Member] | Convertible Senior Notes Due 2017
Debt Instrument [Line Items]
Long-term debt	381,018		375,310
Long-term Debt, Gross	450,000		450,000
Convertible Debt [Member] | Convertible Senior Notes Due 2019
Debt Instrument [Line Items]
Long-term debt	345,084		342,011
Long-term Debt, Gross	$400,000		$400,000
[1]	The principal amount of these notes is $450 million.
[2]	The principal amount of these notes is $400 million.

Note_10_LongTerm_Debt_Schedule1

Note 10 - Long-Term Debt Schedule of Liability and Equity Components of Convertible Debt (Details) (USD $)	Mar. 31, 2015		Dec. 31, 2014
In Thousands, unless otherwise specified
Schedule of Liability and Equity Components of Convertible Debt [Line Items]
Long-term debt, net	$1,218,972		$1,209,926
Equity component of currently redeemable convertible senior notes	68,982		74,690
Convertible Senior Notes Due 2017
Schedule of Liability and Equity Components of Convertible Debt [Line Items]
Long-term debt, net	381,018	[1]	375,310	[1]
Convertible Senior Notes Due 2017 | Convertible Debt [Member]
Schedule of Liability and Equity Components of Convertible Debt [Line Items]
Principal amount of convertible debt in liabilities	450,000		450,000
Less: debt discount, net (1)	-68,982	[2]	-74,690	[2]
Long-term debt, net	381,018		375,310
Equity component of currently redeemable convertible senior notes	68,982		74,690
Convertible Senior Notes Due 2019
Schedule of Liability and Equity Components of Convertible Debt [Line Items]
Long-term debt, net	345,084	[3]	342,011	[3]
Convertible Senior Notes Due 2019 | Convertible Debt [Member]
Schedule of Liability and Equity Components of Convertible Debt [Line Items]
Principal amount of convertible debt in liabilities	400,000		400,000
Less: debt discount, net (1)	-54,916	[2]	-57,989	[2]
Long-term debt, net	345,084		342,011
Equity component of currently redeemable convertible senior notes	$0		$0
[1]	The principal amount of these notes is $450 million.
[2]	Included within long-term debt and is being amortized over the life of the convertible notes.
[3]	The principal amount of these notes is $400 million.

Note_10_LongTerm_Debt_Interest

Note 10 - Long-Term Debt Interest Expense Recognized Related to Convertible Debt (Details) (Convertible Debt [Member], USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Convertible Senior Notes Due 2017
Schedule of Interest Expense Recognized Related to Convertible Debt [Line Items]
Contractual interest expense of convertible debt	$3,375	$3,375
Amortization of debt issuance costs	318	300
Amortization of debt discount	5,708	5,186
Total interest expense for convertible debt	9,401	8,861
Debt Instrument, Interest Rate, Effective Percentage	9.75%	9.75%
Convertible Senior Notes Due 2019
Schedule of Interest Expense Recognized Related to Convertible Debt [Line Items]
Contractual interest expense of convertible debt	2,250	2,250
Amortization of debt issuance costs	328	316
Amortization of debt discount	3,073	2,889
Total interest expense for convertible debt	$5,651	$5,455
Debt Instrument, Interest Rate, Effective Percentage	6.25%	6.25%

Note_11_Accumulated_Other_Comp2

Note 11 - Accumulated Other Comprehensive Income Rollforward of Accumulated Other Comprehensive Income (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015		Mar. 31, 2014
Accumulated Other Comprehensive Income [Line Items]
Accumulated Other Comprehensive Income, Net of Tax, beginning balance	$51,485
Other Comprehensive Income, Net of Tax [Abstract]
Net foreign currency translation adjustments	-126		0
Unrealized holding gains arising during the period	6,454		2,669
Less: Reclassification adjustment for net (losses) gains included in net income	-33		4
Net unrealized gains on investments recorded as assets held for sale	1,828		1,296
Other comprehensive income	8,189		3,961
Other Comprehensive Income (Loss), Net of Tax, Unrealized Gains (Losses) on Investments Continuing Operations	6,487		2,665
Accumulated Other Comprehensive Income, Net of Tax, ending balance	59,674
Other Comprehensive Income
Accumulated Other Comprehensive Income [Line Items]
Accumulated Other Comprehensive Income, before Tax, beginning balance	79,208		57,345
Accumulated Other Comprehensive Income, Tax, beginning balance	27,723		19,962
Accumulated Other Comprehensive Income, Net of Tax, beginning balance	51,485		37,383
Other Comprehensive Income, before Tax [Abstract]
Net foreign currency translation adjustments, before tax	-194
Unrealized holding (losses) gains arising during the period, before tax	9,929		2,670
Less: Reclassification adjustment for net (losses) gains included in net income, before tax	-51	[1]	5	[1]
Other Comprehensive Income (Loss), Before Tax, Unrealized Gains (Losses) on Investments Recorded as Assets Held for Sale	2,812		1,175
Other comprehensive income, before tax	12,598		3,840
Other Comprehensive Income, Tax [Abstract]
Net foreign currency translation adjustments, tax	-68
Unrealized holding (losses) gains arising during the period, tax	3,475		1
Less: Reclassification adjustment for net (losses) gains included in net income, tax	-18	[1]	1	[1]
Other Comprehensive Income (Loss), Tax Effect, Unrealized Gains (Losses) on Investments Recorded as Assets Held for Sale	984		-121
Other Comprehensive Income, Tax	4,409		-121
Other Comprehensive Income, Net of Tax [Abstract]
Net foreign currency translation adjustments	-126
Unrealized holding gains arising during the period	6,454		2,669
Less: Reclassification adjustment for net (losses) gains included in net income	-33	[1]	4	[1]
Net unrealized gains on investments recorded as assets held for sale	1,828		1,296
Other comprehensive income	8,189		3,961
Other Comprehensive Income (Loss), Before Tax, Unrealized Gains Losses on Investments Continuing Operations	9,980		2,665
Other Comprehensive Income (Loss), Tax Effect, Unrealized Gains (Losses) on Investments Continuing Operations	3,493		0
Other Comprehensive Income (Loss), Net of Tax, Unrealized Gains (Losses) on Investments Continuing Operations	6,487		2,665
Accumulated Other Comprehensive Income, before Tax, ending balance	91,806		61,185
Accumulated Other Comprehensive Income, Tax, ending balance	32,132		19,841
Accumulated Other Comprehensive Income, Net of Tax, ending balance	$59,674		$41,344
[1]	Included in net gains on investments and other financial instruments on our condensed consolidated statements of operations.

Note_12_Income_Taxes_Income_Ta

Note 12 - Income Taxes Income Tax (Details) (USD $)	Mar. 31, 2015
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	$1,500,000,000
Deferred Tax Assets, Tax Credit Carryforwards, Foreign	6,000,000
Deferred Tax Assets, Operating Loss Carryforwards, State and Local	33,500,000
State and Local NOL Carryforwards [Member]
Operating Loss Carryforwards [Line Items]
Valuation Allowance, Amount	$18,300,000

Note_12_Income_Taxes_Summary_o

Note 12 - Income Taxes Summary of Income Tax Examinations (Details) (Internal Revenue Service (IRS) [Member], USD $)	Mar. 31, 2015	Sep. 04, 2014	3-May-10	Jun. 30, 2008
In Millions, unless otherwise specified
Income Tax Examination [Line Items]
Income Tax Examination, Amount of Claimed Income Tax Refund Being Disallowed for Tax Years 2006 and 2007		$105
REMIC Residual [Member]
Income Tax Examination [Line Items]
Qualified Deposit With The U.S. Department Of Treasury Relating to Tax Years 2000 Through 2004				85
Qualified Deposit With The U.S. Department Of Treasury Relating To Tax Years 2005 Through 2007			4
Income Tax Examination, Notice of Deficiency, Amounts Related to Unpaid Taxes and Penalties		157
Income Tax Examination, Estimated Interest on Notice of Deficiency Amounts	118
Income Tax Examination, Proposed State Liabilities Resulting from IRS Examination of Tax Years 2000 Through 2007	$30

Note_13_Statutory_Information_2

Note 13 - Statutory Information Statutory Information (Details) (USD $)	3 Months Ended	12 Months Ended
	Mar. 31, 2015	Dec. 31, 2014
Statutory Accounting Practices [Line Items]
Restricted Net Assets Held by Consolidated Subsidiaries	$3,000,000,000
Radian Guaranty [Member]
Statutory Accounting Practices [Line Items]
Statutory Accounting Practices, Statutory Net Income Amount	110,800,000	273,700,000
Statutory capital	1,349,400,000	1,325,200,000
Statutory contingency reserve	$487,600,000	$389,400,000

Note_13_Statutory_Information_3

Note 13 - Statutory Information Risk To Capital Calculation (Details) (USD $)	3 Months Ended		12 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015		Dec. 31, 2014
Risk to Capital Line Items [Line Items]
Risk To Capital Ratio, Regulatory Maximum	25
Radian Guaranty [Member]
Risk to Capital Line Items [Line Items]
Percentage of New Insurance Written Attributable To States With Statutory Or Regulatory Risk Based Capital Requirements	56.30%		56.30%
Risk In Force	$31,324	[1]	$30,615.70	[1]
Statutory capital	1,349.40		1,325.20
Contingency reserve	487.6		389.4
Statutory Accounting Practice, Statutory Position	1,837		1,714.60
Risk-to-capital	17.1		17.9
Mortgage Insurance Segment | State Insurance Regulations [Member]
Risk to Capital Line Items [Line Items]
Number Of States That Have A Statutory Or Regulatory Risk Based Capital Requirement	16
Minimum [Member] | Non RBC States [Member]
Risk to Capital Line Items [Line Items]
Capital Required for Capital Adequacy	1
Maximum [Member] | Non RBC States [Member]
Risk to Capital Line Items [Line Items]
Capital Required for Capital Adequacy	$5
[1]	Excludes risk ceded through reinsurance contracts (to third parties and affiliates) and RIF on defaulted loans.

Note_14_Selected_Financial_Inf2

Note 14 - Selected Financial Information of Registrant Selected Financial Information of Registrant (Details) (USD $)	Mar. 31, 2015		Dec. 31, 2014	Mar. 31, 2014
In Thousands, unless otherwise specified
Condensed Financial Statements, Captions [Line Items]
Total assets	$6,813,855	[1]	$6,859,963	$5,528,985	[1]
Long-term debt	1,218,972		1,209,926
Total liabilities	4,537,961		4,688,213
Equity component of currently redeemable convertible senior notes	68,982		74,690
Total stockholders' equity	2,206,912		2,097,060
Total liabilities and stockholders' equity	6,813,855		6,859,963
Parent Company
Condensed Financial Statements, Captions [Line Items]
Investments in subsidiaries, at equity in net assets	2,960,604		2,746,915
Total assets	3,870,760		3,759,275
Long-term debt	1,218,972		1,209,926
Total liabilities	1,594,866		1,587,525
Equity component of currently redeemable convertible senior notes	68,982		74,690
Total stockholders' equity	2,206,912		2,097,060
Total liabilities and stockholders' equity	$3,870,760		$3,759,275
[1]	Assets held for sale are not part of the Mortgage Insurance or Services segments.

Note_15_Commitments_and_Contin1

Note 15 - Commitments and Contingencies Legal Proceedings (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Sep. 04, 2014
	plaintiff
	loan
Loss Contingencies [Line Items]
Minimum Number of Pending or Threatened Matters That Could Effect Our Results	1
Minimum [Member]
Loss Contingencies [Line Items]
Number Of Home Mortgage Loans Involved In Pending Litigation	1
Loss Contingency, Number of Plaintiffs Whose Loans Were Insured	1
REMIC Residual [Member] | Internal Revenue Service (IRS) [Member]
Loss Contingencies [Line Items]
Income Tax Examination, Notice of Deficiency, Amounts Related to Unpaid Taxes and Penalties		$157

Note_15_Commitments_and_Contin2

Note 15 - Commitments and Contingencies Guarantor Obligations (Details) (Guaranteed Structured Transactions [Member], USD $)	Mar. 31, 2015
In Millions, unless otherwise specified	transaction
Guaranteed Structured Transactions [Member]
Guarantor Obligations [Line Items]
Number of Guaranteed Structured Transactions For Radian Guaranty	2
Guarantor Obligations, Maximum Exposure, Undiscounted	$126.40

Note_15_Commitments_and_Contin3

Note 15 - Commitments and Contingencies Purchase Committment, Excluding Long Term Committment (Details) (Purchase Commitment [Member], USD $)	Mar. 31, 2015
In Millions, unless otherwise specified
Purchase Commitment [Member]
Purchase Commitment, Excluding Long-term Commitment [Line Items]
Purchase Commitment, Remaining Minimum Amount Committed	$7.30

Note_15_Commitments_and_Contin4

Note 15 - Commitments and Contingencies Contingent Claims for Trade Credit and Surety Primary Insurers (Details) (Trade Credit Reinsurance and Surety Insurance [Member])	Mar. 31, 2015	Dec. 31, 2014	Dec. 31, 2014
In Millions, unless otherwise specified	Financial Guaranty Segment	Radian Asset Assurance [Member]	Radian Asset Assurance [Member]
	servicers	Euro Member Countries, Euro	United States of America, Dollars
		EUR (€)	USD ($)
Loss Contingencies [Line Items]
Loss Contingency, Claims Received Through Reporting Period		€ 13.50	$16.40
Number of Servicers Who Have Submitted Claims	1

Note_16_Net_Income_Loss_Per_Sh2

Note 16 - Net Income (Loss) Per Share Net Income (Loss) Per Share (Details) (USD $)	3 Months Ended
In Thousands, except Share data, unless otherwise specified	Mar. 31, 2015		Mar. 31, 2014
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Net income (loss) from continuing operations—basic	$91,727		$145,980
Income (Loss) From Continuing Operations, Diluted, Amount	95,400		151,435
Income from discontinued operations, net of tax	530		56,779
Net income-basic	92,257		202,759
Net income (loss) after assumed conversion of convertible debt	95,930		208,214
Average common shares outstanding—basic	191,224,000		173,165,000
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	3,202,000	[1]	2,764,000	[1]
Adjusted shares outstanding—diluted	243,048,000		222,668,000
Net income from continuing operations	$0.48		$0.84
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic Share	$0		$0.33
Basic net income per share	$0.48		$1.17
Net income from continuing operations	$0.39		$0.68
Income from discontinued operations	$0		$0.26
Diluted net income (loss) per share	$0.39		$0.94
Stock Compensation Plan [Member]
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	540,400		946,400
Convertible Debt [Member] | Convertible Senior Notes Due 2017
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Incremental Common Shares Attributable to Dilutive Effect of Conversion of Debt Securities	10,886,000		9,003,000
Convertible Debt [Member] | Convertible Senior Notes Due 2019
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Adjustment for interest expense incurred on assumed conversion of convertible debt, net	$3,673	[2]	$5,455	[2]
Incremental Common Shares Attributable to Dilutive Effect of Conversion of Debt Securities	37,736,000		37,736,000
[1]	For the three months ended March 31, 2015, 540,400 shares of our common stock equivalents issued under our stock-based compensation arrangements were not included in the calculation of diluted net income per share because they were anti-dilutive. For the three months ended March 31, 2014, 946,400 shares of our common stock equivalents issued under our stock-based compensation arrangements were not included in the calculation of diluted net income per share because they were anti-dilutive.
[2]	As applicable, includes coupon interest, amortization of discount and fees, and other changes in income or loss that would result from the assumed conversion.