Insurance Reserves (Tables)
 9 Months Ended
Sep. 30, 2016
Insurance [Abstract]  
Liability for unpaid losses and LAE
The following table provides an analysis of changes in the liability for unpaid losses and LAE on a GAAP basis ($ in thousands): 
 
Three months ended
 
Nine months ended
 
September 30,
 
September 30,
 
2016
 
2015
 
2016
 
2015
Balance at Beginning of Period
 
 
 
 
 
 
 
Unpaid losses on known claims
$
236,947

 
$
245,863

 
$
237,660

 
$
235,037

IBNR losses
290,767

 
281,147

 
290,097

 
277,482

LAE
138,496

 
154,017

 
142,207

 
155,658

Total unpaid losses and LAE
666,210

 
681,028

 
669,965

 
668,177

Reinsurance recoverables
(18,487
)
 
(14,155
)
 
(14,694
)
 
(14,370
)
Unpaid losses and LAE, net of reinsurance recoverables
647,723

 
666,873

 
655,271

 
653,808

Current Activity
 
 
 
 
 
 
 
Loss and LAE incurred:
 
 
 
 
 
 
 
Current accident year
281,456

 
267,412

 
828,310

 
798,442

Prior accident years
(590
)
 
(11,349
)
 
(18,646
)
 
(23,953
)
Total loss and LAE incurred
280,866

 
256,063

 
809,664

 
774,489

Loss and LAE payments:
 
 
 
 
 
 
 
Current accident year
(197,437
)
 
(192,850
)
 
(461,020
)
 
(439,519
)
Prior accident years
(72,205
)
 
(66,257
)
 
(344,969
)
 
(324,949
)
Total loss and LAE payments
(269,642
)
 
(259,107
)
 
(805,989
)
 
(764,469
)
Balance at End of Period
 
 
 
 
 
 
 
Unpaid losses and LAE, net of reinsurance recoverables
658,946

 
663,829

 
658,946

 
663,829

Add back reinsurance recoverables
17,580

 
15,190

 
17,580

 
15,190

Total unpaid losses and LAE
676,526

 
679,018

 
676,526

 
679,018

Unpaid losses on known claims
240,935

 
246,015

 
240,935

 
246,015

IBNR losses
299,143

 
282,658

 
299,143

 
282,658

LAE
136,449

 
150,345

 
136,449

 
150,345

Total unpaid losses and LAE
$
676,526

 
$
679,018

 
$
676,526

 
$
679,018