Reserves for Losses and Loss Adjustment Expenses (Tables)

9 Months Ended

Sep. 30, 2020

Insurance [Abstract]

Reserves for Losses and Loss Adjustment Expenses

The following table provides a reconciliation of reserves for losses and loss adjustment expenses (“LAE”):

	For the Nine Months Ended September 30,
(in millions)	2020		2019
Net reserves beginning of the year	$	2,722.7	$	2,562.9
Net AIL reserves acquired	27.9		—
Add:
Losses and LAE incurred during current calendar year, net of reinsurance:
Current accident year	876.9		799.9
Prior accident years	6.1		61.6
Losses and LAE incurred during calendar year, net of reinsurance	883.0		861.5
Deduct:
Losses and LAE payments made during current calendar year, net of reinsurance:
Current accident year	188.2		163.6
Prior accident years	632.7		615.8
Losses and LAE payments made during current calendar year, net of reinsurance:	820.9		779.4
Change in participation interest (1)	33.0		(14.4)
Foreign exchange adjustments	23.0		(26.3)
Net reserves - end of period	2,868.7		2,604.3
Add:
Reinsurance recoverables on unpaid losses and LAE, end of period	2,521.3		2,238.2
Gross reserves - end of period	$	5,390.0	$	4,842.5

(1)Amount represents the change in reserves due to changing our participation in Syndicates 1200 and 1910.

Impact from (Favorable) Unfavorable Development of Prior Accident Years’ Loss and LAE Reserves on Each Reporting Segment

The impact from the unfavorable development of prior accident years’ loss and LAE reserves on each reporting segment is presented below: 

	For the Nine Months Ended September 30,
(in millions)	2020		2019
U.S. Operations	$	(0.5)	$	(9.8)
International Operations	(4.5)		69.5
Run-off Lines	11.1		1.9
Total unfavorable prior-year development	$	6.1	$	61.6