• Filing Date: 2018-03-07
  • Form Type: 10-K
  • Description: Annual report
v3.8.0.1
Regulatory Requirements and Restrictions - Additional Information (Detail)
12 Months Ended
Dec. 31, 2017
USD ($)
Dec. 31, 2016
USD ($)
Dec. 31, 2015
USD ($)
Dec. 31, 2018
USD ($)
Statutory Accounting Practices [Line Items]        
Payment of dividends $ 95,310,000      
Minimum percentage of capital and surplus requires to maintain by Company 10.00%      
Statutory capital and surplus $ 153,000,000 $ 183,000,000 $ 195,000,000  
Dividend distribution open capital surplus under condition 1 10.00%      
Dividend distribution open capital surplus under condition 2 10.00%      
Percentage of unrealized capital gain under condition 2 25.00%      
Dividend distribution open capital surplus under condition 3 10.00%      
Percentage of unrealized capital gain under condition 3 25.00%      
Restricted net assets of Company's insurance subsidiaries $ 180,286,000 148,999,000    
HCPCI Domiciled in Florida [Member]        
Statutory Accounting Practices [Line Items]        
Statutory net income (loss) Amount $ (10,500,000) 5,900,000 57,400,000  
Statutory accounting practices, Future dividend payments restrictions, Capital Surplus Percentage 10.00%      
Statutory accounting practices, Future dividend payments restrictions, Statutory Capital surplus Percentage 115.00%      
Statutory accounting practices, Future dividend payments restrictions, Notice Period 30 days      
Premium to capital surplus ratios, percentage of written premiums 90.00%      
TypTap [Member]        
Statutory Accounting Practices [Line Items]        
Statutory capital and surplus $ 24,000,000 25,000,000    
Statutory net income (loss) Amount $ 797,000 $ 364,000    
Premium to capital surplus ratio for gross written premiums 0.33 0.09    
Premium to capital surplus ratio for net written premiums 0.27 0.07    
HCPCI and TypTap [Member]        
Statutory Accounting Practices [Line Items]        
Deposit in Trust with state regulatory authorities $ 300,000      
Claddaugh Domiciled in Bermuda [Member]        
Statutory Accounting Practices [Line Items]        
Minimum amount of statutory capital and surplus required 2,000,000      
Statutory capital and surplus 63,000,000 $ 88,000,000    
Statutory net income (loss) Amount (5,200,000) 13,200,000 9,900,000  
Payment of cash dividend to parent 20,000,000 0 $ 0  
Us Insurance Subsidiaries [Member]        
Statutory Accounting Practices [Line Items]        
Statutory capital and surplus $ 177,000,000      
Maximum [Member] | Insurance Subsidiaries Domiciled in Florida [Member]        
Statutory Accounting Practices [Line Items]        
Premium to capital surplus ratio for gross written premiums 10      
Premium to capital surplus ratio for net written premiums 4      
Minimum [Member] | HCPCI Domiciled in Florida [Member]        
Statutory Accounting Practices [Line Items]        
Minimum amount of statutory capital and surplus required $ 25,900,000 22,550,000    
Minimum [Member] | TypTap [Member]        
Statutory Accounting Practices [Line Items]        
Minimum amount of statutory capital and surplus required 20,000,000 $ 20,000,000    
Minimum [Member] | TypTap [Member] | Scenario, Forecast [Member]        
Statutory Accounting Practices [Line Items]        
Minimum amount of statutory capital and surplus required       $ 20,000,000
Minimum [Member] | Us Insurance Subsidiaries [Member]        
Statutory Accounting Practices [Line Items]        
Minimum amount of statutory capital and surplus required $ 45,900,000