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Reinsurance (Tables)
 9 Months Ended
Sep. 30, 2017
Reinsurance Disclosures [Abstract]  
Schedule of Ceded Premiums Earned by Type
The table below summarizes the amounts of our ceded premiums written under the various types of agreements, as well as the amortization of prepaid reinsurance premiums:

 
Three Months Ended September 30,
 
Nine Months Ended
September 30,
 
2017
 
2016
 
2017
 
2016
Excess-of-loss
$
(28,306
)
 
$
(476
)
 
$
(400,773
)
 
$
(182,503
)
Equipment & identity theft
(2,606
)
 
(2,359
)
 
(7,275
)
 
(6,136
)
Novation of auto policies (1)
—

 
—

 
—

 
(2,396
)
Flood
(5,559
)
 
(5,006
)
 
(14,319
)
 
(12,969
)
Ceded premiums written
$
(36,471
)
 
$
(7,841
)
 
$
(422,367
)
 
$
(204,004
)
Increase (decrease) in ceded unearned premiums
(79,036
)
 
(45,458
)
 
130,012

 
55,167

Ceded premiums earned
$
(115,507
)
 
$
(53,299
)
 
$
(292,355
)
 
$
(148,837
)

(1) Reflects ceding of auto policy premiums to Maidstone Insurance Company as part of the settlement of the novation agreement entered into at the closing of the Interboro Insurance Company transaction.
Schedule of Catastrophe Losses by Event Magnitude
Current year catastrophe losses disaggregated between named and numbered storms and all other catastrophe loss events are shown in the following table for the three and nine months ended September 30, 2017 and 2016.

 
 
2017
 
2016
 
 
Number of Events
 
Incurred Loss and LAE (1) 
 
Combined Ratio Impact
 
Number of Events
 
Incurred Loss and LAE (1) 
 
Combined Ratio Impact
Three Months Ended September 30,
 
 
 
 
 
 
 
 
 
 
 
 
Current period catastrophe losses incurred
 
 
 
 
 
 
 
 
 
 
 
 
Named and numbered storms
 
4

 
$
83,460

 
54.7
 %
 
3

 
$
2,600

 
2.2
%
All other catastrophe loss events
 
15

 
(845
)
 
(0.6
)%
 
15

 
2,509

 
2.0
%
Total
 
19

 
$
82,615

 
54.1
 %
 
18

 
$
5,109

 
4.2
%
 
 
 
 
 
 
 
 
 
 
 
 
 
Nine Months Ended September 30,
 
 
 
 
 
 
 
 
 
 
 
 
Current period catastrophe losses incurred
 
 
 
 
 
 
 
 
 
 
 
 
Named and numbered storms
 
4

 
$
83,724

 
20.0
 %
 
3

 
$
4,069

 
1.2
%
All other catastrophe loss events
 
15

 
31,301

 
7.5
 %
 
15

 
19,816

 
5.9
%
Total
 
19

 
$
115,025

 
27.5
 %
 
18

 
$
23,885

 
7.1
%

(1) Incurred loss and LAE is equal to losses and LAE paid plus the change in case and incurred but not reported reserves. Shown net of losses ceded to reinsurers. Incurred loss and LAE and number of events includes the development on storms during both the three and nine months ended September 30, 2017. During the third quarter of 2017 we incurred losses and LAE from four new storms.