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SCHEDULE VI - Supplementary Information Concerning Property Casualty Insurance Operations
12 Months Ended
Dec. 31, 2019
SEC Schedule, 12-18, Supplemental Information, Property-Casualty Insurance Underwriters [Abstract]  
Supplementary Information Concerning Property Casualty Insurance Operations
Supplementary Information Concerning Property Casualty Insurance Operations
Year Ended December 31,
2019
 
2018
 
2017
(in thousands)
Deferred policy acquisition costs
$
62,006

 
$
54,450

 
$
72,365

Reserve for losses and loss adjustment expenses
2,045,506

 
1,661,459

 
1,292,349

Unearned premiums
524,377

 
386,473

 
418,114

Net earned premiums
823,746

 
815,398

 
741,109

Net investment income
75,652

 
61,256

 
61,119

Losses and loss adjustment expenses incurred:
 
 
 
 
 
Current year
603,094

 
582,604

 
533,905

Prior year
69,008

 
17,672

 
21,472

Total losses and loss adjustment expenses incurred
672,102

 
600,276

 
555,377

Amortization of policy acquisition costs
83,893

 
111,103

 
116,001

Paid losses and loss adjustment expenses, net of reinsurance
488,729

 
396,013

 
326,680

Net written premiums
896,150

 
762,672

 
766,626