XML 88 R76.htm IDEA: XBRL DOCUMENT v3.20.2
Note 16 - Statutory Information - Statutory Information (Details) - USD ($)
$ in Millions
1 Months Ended 9 Months Ended
Jan. 31, 2020
Sep. 30, 2020
Dec. 31, 2019
Statutory Accounting Practices [Line Items]      
PMIERS Disaster Related Capital Charge   30.00%  
Reduction in Capital Charges   70.00%  
Maximum      
Statutory Accounting Practices [Line Items]      
Number of Months that Disaster Related Capital Charge is Applied.   3 months  
Radian Guaranty      
Statutory Accounting Practices [Line Items]      
Surplus Note $ 200.0 $ 300.0 $ 100.0
Related Party Transaction, Rate 3.00%    
Surplus Note, Notice of Redemption Period 30 days    
Radian Reinsurance      
Statutory Accounting Practices [Line Items]      
Risk In Force $ 6,000.0    
Return of capital 465.0    
Radian Group Inc.      
Statutory Accounting Practices [Line Items]      
Marketable Securities $ 200.0    
Consolidated insurance subsidiaries      
Statutory Accounting Practices [Line Items]      
Restricted Net Assets Held by Consolidated Subsidiaries   $ 4,000.0