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Document and Entity Information
Mar. 19, 2019
Cover [Abstract]  
Entity Registrant Name RADIAN GROUP INC
Entity Address, State or Province PA
Amendment Flag true
Entity Central Index Key 0000890926
Document Type 8-K/A
Document Period End Date Mar. 19, 2019
Entity Incorporation, State or Country Code DE
Entity File Number 1-11356
Entity Tax Identification Number 23-2691170
Entity Address, Address Line One 1500 Market Street
Entity Address, City or Town Philadelphia
Entity Address, Postal Zip Code 19102
City Area Code 215
Local Phone Number 231-1000
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Common Stock, $0.001 par value per share
Trading Symbol RDN
Security Exchange Name NYSE
Entity Emerging Growth Company false
Amendment Description This Amendment No. 1 to the Current Report on Form 8-K filed by Radian Group Inc. (the “Company”), on March 19, 2019 (the “Original Form 8-K”), is being filed solely to replace incorrect versions of the Company’s By-laws that were attached as Exhibit 3.1 and Exhibit 3.2 thereto. The corrected Exhibit 3.1 and Exhibit 3.2 are attached hereto, and each supersedes in its entirety Exhibit 3.1 and Exhibit 3.2, respectively, to the Original Form 8-K. In all other respects, the Original Form 8-K is unchanged.