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Estimated title losses (Tables)
 9 Months Ended
Sep. 30, 2017
Insurance [Abstract]  
Summary of estimated title losses
A summary of estimated title losses for the nine months ended September 30 is as follows:
 
2017
 
2016
 
($000 omitted)
Balances at January 1
462,572

 
462,622

Provisions:
 
 
 
Current year
69,067

 
73,380

Previous policy years
1,524

 
(6,768
)
Total provisions
70,591

 
66,612

Payments, net of recoveries:
 
 
 
Current year
(10,403
)
 
(13,938
)
Previous policy years
(53,491
)
 
(57,410
)
Total payments, net of recoveries
(63,894
)
 
(71,348
)
Effects of changes in foreign currency exchange rates
6,576

 
2,814

Balances at September 30
475,845

 
460,700

Loss ratios as a percentage of title operating revenues:
 
 
 
Current year provisions
5.0
%
 
5.3
%
Total provisions
5.1
%
 
4.8
%