XML 53 R36.htm IDEA: XBRL DOCUMENT v3.10.0.1
Liability for Loss and LAE (Tables)
 12 Months Ended
Dec. 31, 2018
Activity in Liability for Loss and Loss Adjustment Expense
The following table presents the activity in the liability for loss and LAE in 2018, 2017 and 2016:
 
 Year Ended December 31,
 201820172016
  ($ in millions) 
Reserves as of January 1
 $11,871.3 $11,087.2 $10,799.2
Less: reinsurance recoverables
(1)
 1,650.1 1,236.2 1,169.3
 
 
 
 
 
 
 
Net reserves as of January 1
 10,221.2 9,851.0 9,629.9
 
 
 
 
 
 
 
    
Other adjustments
 0.9 (293.7)(2) 2.4
 
 
 
 
 
 
 
    
Incurred loss and LAE, net of reinsurance, related to:
      
Current year
 3,849.4 3,918.8 3,285.2
Prior years
 (329.0) (298.6) (368.0)
 
 
 
 
 
 
 
Total incurred loss and LAE, net of reinsurance
 3,520.4 3,620.2 2,917.2
 
 
 
 
 
 
 
    
Paid loss and LAE, net of reinsurance, related to:
(3)
      
Current year
 838.9 853.2 734.3
Prior years
 2,419.0 2,225.2 1,866.5
 
 
 
 
 
 
 
Total paid loss and LAE, net of reinsurance
 3,257.9 3,078.4 2,600.8
 
 
 
 
 
 
 
    
Foreign currency exchange rate effect
 (91.7) 122.1 (97.7)
 
 
 
 
 
 
 
    
Net reserves as of December 31
 10,392.9 10,221.2 9,851.0
Reinsurance recoverables as of December 31
(1)
 1,857.4 1,650.1 1,236.2
 
 
 
 
 
 
 
Reserves as of December 31
 $    12,250.3 $    11,871.3 $    11,087.2
 
 
 
 
 
 
 
 
(1)
Reinsurance recoverables in this table include only ceded loss and LAE reserves.
(2)
Primarily represents the impact on net reserves arising from the sale of PacificComp.
(3)
Includes paid loss and LAE, net of reinsurance, related to commutations.
(Favorable) Unfavorable Prior Accident Year Loss Reserve Development
The following table presents the (favorable) unfavorable prior accident year loss reserve development for 2018, 2017 and 2016:
 
  Year Ended December 31, 
                2018                               2017                               2016                
     ($ in millions)    
Reinsurance Segment
            
Property:
            
Catastrophe events
 $(20.2)
(1)
  		  $(22.2)
(2)
  		  $(14.2)
(3)
  
Non-catastrophe
  (64.7)
(4)
  		  (72.3)
(5)
  		  (91.5)
(6)
  
  
 
 
  
 
 
  
 
 
 
Total property
  (84.9)   (94.5)   (105.7) 
  
 
 
  
 
 
  
 
 
 
    
Casualty & other:
            
Malpractice Treaties
(7)
  (3.4)   (5.0)   (10.8) 
Ogden rate impact
(8)
  -       24.4   -     
Other
  (177.8)
(9)
  		  (174.4)
(10)
  		  (177.0)
(11)
  
  
 
 
  
 
 
  
 
 
 
Total casualty & other
  (181.2)   (155.0)   (187.8) 
  
 
 
  
 
 
  
 
 
 
Total Reinsurance Segment
  (266.1)   (249.5)   (293.5) 
  
 
 
  
 
 
  
 
 
 
    
Insurance Segment
            
RSUI:
            
Casualty
  (27.8)
(12)
  		  (38.9)
(13)
  		  (35.3)
(14)
  
Property and other
  (30.9)
(15)
  		  (4.3)
(16)
  		  (33.0)
(17)
  
  
 
 
  
 
 
  
 
 
 
Total RSUI
  (58.7)   (43.2)   (68.3) 
  
 
 
  
 
 
  
 
 
 
    
CapSpecialty:
            
Ongoing lines of business
  (4.2)
(18)
  		  (3.4)
(19)
  		  (0.3) 
Terminated Program
(20)
  -       -       (1.9) 
Asbestos-related illness and environmental impairment liability
  -       -       (2.0) 
  
 
 
  
 
 
  
 
 
 
Total CapSpecialty
  (4.2)   (3.4)   (4.2) 
  
 
 
  
 
 
  
 
 
 
PacificComp
  -       (2.5)
(21)
  		  (2.0)
(22)
  
  
 
 
  
 
 
  
 
 
 
Total incurred related to prior years
  $    (329.0)   $    (298.6)   $    (368.0) 
  
 
 
  
 
 
  
 
 
 
 
(1)
Primarily reflects favorable prior accident year loss reserve development related to Hurricane Harvey in the 2017 accident year and catastrophes in the 2016 accident year, partially offset by unfavorable prior accident year loss reserve development related to Hurricanes Maria and Irma in the 2017 accident year.
(2)
Reflects favorable prior accident year loss reserve development related to several catastrophes primarily in the 2016 accident year.
(3)
Reflects favorable prior accident year loss reserve development related to several catastrophes in the 2010 through 2015 accident years.
(4)
Primarily reflects favorable prior accident year loss reserve development in the 2015 and 2016 accident years, partially offset by unfavorable prior accident year loss reserve development in the 2017 accident year.
(5)
Reflects favorable prior accident year loss reserve development primarily in the 2011 through 2016 accident years.
(6)
Reflects favorable prior accident year loss reserve development primarily in the 2011 through 2015 accident years.
(7)
Represents certain malpractice treaties pursuant to which the increased underwriting profits created by the favorable prior accident year loss reserve development are largely retained by the cedants. As a result, the favorable prior accident year loss reserve development is largely offset by an increase in profit commission expense incurred when such favorable prior accident year loss reserve development occurs.
(8)
Represents unfavorable prior accident year loss reserve development related to the U.K. Ministry of Justice’s reduction in the discount rate used to calculate 
lump-sum
 bodily injury payouts in personal injury insurance claims in the U.K to negative 0.75 percent as of March 20, 2017 from 2.50 percent.
(9)
Primarily reflects favorable prior accident year loss reserve development in the longer-tailed casualty lines of business in the 2002 through 2010 accident years and in the shorter-tailed casualty lines of business (specifically, ocean marine, automobile liability and accident and health) in the 2017 accident year, partially offset by unfavorable prior accident year loss reserve development in the professional liability lines of business in the 2015 accident year.
(10)
Primarily reflects favorable prior accident year loss reserve development in: (i) longer-tailed professional liability and general liability lines of business in the 2003 through 2012 accident years; and (ii) shorter-tailed casualty lines of business in the 2010 through 2014 accident years; partially offset by unfavorable prior accident year loss reserve development in shorter-tailed casualty lines of business in the 2015 and 2016 accident years.
(11)
Generally reflects favorable prior accident year loss reserve development reserves in a variety of casualty & other lines of business primarily in the 2003 through 2015 accident years.
(12)
Primarily reflects favorable prior accident year loss reserve development in the umbrella/excess lines of business in the 2005 through 2012 accident years, partially offset by unfavorable prior accident year loss reserve development in the directors’ and officers’ liability lines of business in the 2009, 2012 and 2016 accident years.
(13)
Primarily reflects favorable prior accident year loss reserve development in the umbrella/excess lines of business in the 2005 through 2011 accident years.
(14)
Primarily reflects favorable prior accident year loss reserve development in the umbrella/excess, general liability and professional liability lines of business in the 2006 through 2012 accident years.
(15)
Primarily reflects favorable prior accident year loss reserve development related to Hurricane Irma in the 2017 accident year and, to a lesser extent, Hurricane Matthew in the 2016 accident year, as well as various other losses not classified as catastrophes in recent accident years.
(16)
Primarily reflects favorable catastrophe prior accident year loss reserve development in the 2016 accident year, partially offset by unfavorable prior accident year property loss reserve development in the binding authority lines of business primarily in the 2015 and 2016 accident years.
(17)
Includes favorable prior accident year loss reserve development of ($20.6) million related to Super Storm Sandy in 2012 and various other smaller amounts primarily in the 
non-catastrophe
 property lines of business in recent accident years.
(18)
Primarily reflects favorable prior accident year loss reserve development in the surety lines of business in the 2016 and 2017 accident years.
(19)
Primarily reflects favorable prior accident year loss reserve development in the casualty lines of business in the 2010, 2014, 2015 and 2016 accident years.
(20)
Represents certain specialty lines of business written through a program administrator in connection with a terminated program in the 2010 and 2009 accident years and reflects (favorable) loss emergence compared with loss emergence patterns assumed in earlier periods for such business.
(21)
Primarily reflects favorable prior accident year loss reserve development in the 2013 and prior accident years.
(22)
Primarily reflects favorable prior accident year loss reserve development in the 2012 and prior accident years.
Loss and LAE Reserve Summary and Reconciliation to Consolidated Balance Sheet
Loss and LAE Reserve Summary and Reconciliation to Consolidated Balance Sheet
 
  Unpaid loss and LAE as of December 31, 2018
(1)
  Gross Loss and
LAE Reserves		 Reinsurance
Recoverables
on Unpaid
Losses		 Net Loss and
LAE Reserves
  ($ in millions)
Reinsurance Segment:
            
Property
  $2,102.5   $(701.8)   $1,400.7 
Casualty & other - Longer-Tailed Lines of Business
  4,771.0   (88.4)   4,682.6 
Casualty & other - Shorter-Tailed Lines of Business
  2,568.7   (173.5)   2,395.2 
  
 
 
 
 
 
 
 
 
 
 
 
   9,442.2   (963.7)   8,478.5 
  
 
 
 
 
 
 
 
 
 
 
 
    
Insurance Segment:
            
RSUI - Property
  547.0   (187.1)   359.9 
RSUI - Casualty
  1,990.8   (743.9)   1,246.9 
  
 
 
 
 
 
 
 
 
 
 
 
RSUI
  2,537.8   (931.0)   1,606.8 
    
CapSpecialty
  337.1   (29.5)   307.6 
  
 
 
 
 
 
 
 
 
 
 
 
   2,874.9   (960.5)   1,914.4 
  
 
 
 
 
 
 
 
 
 
 
 
    
Eliminations
  (66.8)   66.8   -   
  
 
 
 
 
 
 
 
 
 
 
 
Total
  $    12,250.3   $    (1,857.4)   $    10,392.9 
  
 
 
 
 
 
 
 
 
 
 
 
 
(1)
Includes unallocated LAE, which aggregate to 1.1 percent of gross loss and LAE reserves as of December 31, 2018. Net loss and LAE reserves by component are shown in the preceding tables, and consolidated gross loss and LAE reserves is presented in the Consolidated Balance Sheets.
Average Historical Loss and LAE Duration
The following table presents supplemental information about average historical loss and LAE duration, net of reinsurance, as of December 31, 2018.
 
    Average Annual Percentage Payout of Loss and LAE Incurred, Net of Reinsurance
As of December 31, 2018
  Years 1 2 3 4 5 6 7 8 9 10
Reinsurance Segment:
                                        
Property
  28.8%    38.0%    17.2%    7.6%    3.6%    2.0%    1.5%    0.4%    0.5%    -0.4%  
Casualty & other - Longer-Tailed Lines of Business
  3.9%   8.5%   12.6%   14.5%   12.5%   11.1%   8.5%   5.2%   4.5%   4.0% 
Casualty & other - Shorter-Tailed Lines of Business
  35.3%   26.9%   12.8%   6.2%   3.6%   2.1%   1.6%   1.1%   0.7%   0.6% 
           
Insurance Segment:
                                        
RSUI - Property
  42.5%   31.5%   9.8%   5.5%   2.3%   2.2%   0.7%   0.3%   0.0%   0.2% 
RSUI - Casualty
  3.6%   15.6%   19.6%   14.0%   12.3%   6.5%   4.0%   5.3%   2.8%   4.5% 
CapSpecialty
  23.9%   24.9%   15.5%   13.9%   9.6%   5.2%   2.6%   1.8%   0.6%   0.1% 
Reinsurance Segment | Property  
Supplemental Information About Incurred and Paid Loss and LAE Development and Reconciliation to Consolidated Balance Sheet
Reinsurance Segment - Property
 
  Incurred Loss and LAE, Net of Reinsurance  
As of
 December 31, 
 
  Year Ended December 31,  2018 
 Accident 
Year
 2009
 (unaudited) 		  2010
 (unaudited) 		  2011
 (unaudited) 		  2012
 (unaudited) 		  2013
 (unaudited) 		  2014
 (unaudited) 		  2015
 (unaudited) 		  2016
 (unaudited) 		  2017
 (unaudited) 		  2018  IBNR 
  ($ in millions) 
    2009
   $    489.3      $    377.4      $    359.7      $    358.0      $    357.1      $    357.6      $    355.9      $    353.7      $    353.6      $    352.6      $
        -      
 
    2010
      615.6     527.1     528.0     540.4     581.2     606.0     609.9     613.0     605.3     16.6   
    2011
          1,351.2     1,342.3     1,269.4     1,240.7     1,235.2     1,217.1     1,210.9     1,209.6     1.3   
    2012
              697.2     579.1     530.3     495.6     478.1     469.4     462.5     7.0   
    2013
                  501.2     470.6     444.6     422.1     406.8     403.6     7.0   
    2014
                      496.4     464.8     451.3     435.2     429.8     12.8   
    2015
                          368.8     332.0     320.6     306.3     15.2   
    2016
                              684.1     647.2     596.7     32.7   
    2017
                                  1,174.6     1,179.5     76.3   
    2018
                                      1,152.7     538.4   
                                      
 
 
     
Total incurred loss and LAE for the 2009 through 2018 accident years
 
   $    6,698.6       
                                      
 
 
     
   
  Paid Loss and LAE, Net of Reinsurance    
  Year Ended December 31, 
Accident
Year
 2009
(unaudited)		  2010
(unaudited)		  2011
(unaudited)		  2012
(unaudited)		  2013
(unaudited)		  2014
(unaudited)		  2015
(unaudited)		  2016
(unaudited)		  2017
(unaudited)		  2018 
  ($ in millions) 
    2009
   $114.7      $251.7      $310.9      $332.4      $340.6      $345.5      $347.9      $345.7      $347.1      $345.8   
    2010
      169.3     349.0     418.9     472.3     513.5     540.1     563.7     571.5     575.1   
    2011
          407.8     796.4     1,014.3     1,129.2     1,171.0     1,187.2     1,195.0     1,199.7   
    2012
              90.3     268.9     377.8     416.7     438.0     448.0     451.2   
    2013
                  113.1     277.4     361.0     389.8     396.7     399.7   
    2014
                      109.4     297.6     360.0     382.9     394.0   
    2015
                          96.0     217.7     278.3     303.1   
    2016
                              210.5     429.8     504.8   
    2017
                                  324.5     818.5   
    2018
                                      309.5   
                                      
 
 
 
Cumulative paid loss and LAE for the 2009 through 2018 accident years
 
   $5,301.4   
                                      
 
 
 
Total incurred loss and LAE for the 2009 through 2018 accident years
 
   $6,698.6   
Cumulative paid loss and LAE for the 2009 through 2018 accident years
 
  5,301.4   
Unpaid loss and LAE, net of reinsurance recoverables, for accident years prior to 2009
 
  3.5   
                                      
 
 
 
Unpaid loss and LAE, net of reinsurance recoverables, as of December 31, 2018
 
   $1,400.7   
                                      
 
 
 
Insurance Segment | CapSpecialty Incorporated  
Supplemental Information About Incurred and Paid Loss and LAE Development and Reconciliation to Consolidated Balance Sheet
Insurance Segment - CapSpecialty
(1)
 
  Incurred Loss and LAE, Net of Reinsurance       
  Year Ended December 31,  As of December 31, 2018 
Accident
    Year    
 2009
 (unaudited) 		  2010
 (unaudited) 		  2011
 (unaudited) 		  2012
 (unaudited) 		  2013
 (unaudited) 		  2014
 (unaudited) 		  2015
 (unaudited) 		  2016
 (unaudited) 		  2017
 (unaudited) 		          2018                  IBNR          Cumulative
Number of
Reported
    Claims
(2)
    		 
  ($ in millions, except reported claims)    
    2009 $    92.2  $    93.3  $    90.4  $    95.7  $    98.8  $    99.0  $    97.9  $    98.0  $97.9  $97.8  $              0.3           8,542 
    2010      93.2   110.8   117.9   134.8   134.5   129.8   129.5       127.7   127.2   1.8   8,211 
    2011          74.0   71.2   74.4   76.9   79.4   78.4   78.2   77.7   0.7   5,688 
    2012              72.7   71.8   66.2   69.3   69.7   68.7   68.8   0.7   5,262 
    2013                  78.7   81.4   85.2   84.4   87.2   88.6   1.8   5,158 
    2014                      102.8   102.7   101.0   100.2   98.6   4.6   5,896 
    2015                          111.0   111.8   109.2   109.7   8.3   5,456 
    2016                              129.4   132.4   132.7   23.5   5,993 
    2017                                  147.3   143.7   47.5   6,046 
    2018                                      164.1   99.3   5,428 
                                      
 
 
         
Total incurred loss and LAE for the 2009 through 2018 accident years
 
 $      1,108.9         
   
 
 
         
  
 
Paid Loss and LAE, Net of Reinsurance
    
  Year Ended December 31, 
Accident
    Year    
 2009
(unaudited)		  2010
(unaudited)		  2011
(unaudited)		  2012
(unaudited)		  2013
(unaudited)		  2014
(unaudited)		  2015
(unaudited)		  2016
(unaudited)		  2017
(unaudited)		  2018 
  ($ in millions) 
    2009 $27.7  $50.1  $62.5  $78.2  $87.2  $92.7  $94.4  $95.7  $96.4  $96.5 
    2010      22.0   56.2   78.4   98.1   111.0   119.2   121.6   123.9   124.4 
    2011          16.3   31.9   44.7   57.7   67.3   69.8   73.8   75.7 
    2012              18.6   38.6   46.9   57.2   63.3   65.0   66.5 
    2013                  23.4   48.0   62.0   69.6   78.6   84.5 
    2014                      34.0   56.3   71.9   83.1   89.8 
    2015                          30.9   57.4   73.5   88.8 
    2016                              30.3   64.0   86.6 
    2017                                  30.1   65.6 
    2018                                      31.7 
                                      
 
 
 
Cumulative paid loss and LAE for the 2009 through 2018 accident years
 
 $810.1 
   
 
 
 
Total incurred loss and LAE for the 2009 through 2018 accident years
 
 $1,108.9 
Cumulative paid loss and LAE for the 2009 through 2018 accident years
 
  810.1 
Unpaid loss and LAE, net of reinsurance recoverables, for accident years prior to 2009
 
  8.8 
   
 
 
 
Unpaid loss and LAE, net of reinsurance recoverables, as of December 31, 2018
 
 $307.6 
   
 
 
 
 
 
(1)
The vast majority of the CapSpecialty’s loss and LAE reserves relate to its casualty lines of business.
 
(2)
Represents claims reported by insured claimants.
Longer Tailed Lines of Business | Reinsurance Segment | Casualty & Other  
Supplemental Information About Incurred and Paid Loss and LAE Development and Reconciliation to Consolidated Balance Sheet
Reinsurance Segment - Casualty & other – Longer-Tailed Lines of Business
(1)
  Incurred Loss and LAE, Net of Reinsurance  As of
 December 31, 		 
  Year Ended December 31,  2018 
 Accident 
Year
 2009
 (unaudited) 		  2010
 (unaudited) 		  2011
 (unaudited) 		  2012
 (unaudited) 		  2013
 (unaudited) 		  2014
 (unaudited) 		  2015
 (unaudited) 		  2016
 (unaudited) 		  2017
 (unaudited) 		  2018  IBNR 
  ($ in millions) 
    2009
   $   1,059.8      $   1,074.7      $   1,091.0      $   1,101.9      $   1,094.9      $   1,107.8      $   1,129.4      $   1,123.4      $   1,119.8      $   1,108.1      $   90.4   
    2010
      1,098.6     1,101.9     1,090.7     1,063.5     1,015.5     999.3     977.6     962.9     959.7     133.4   
    2011
          996.0     1,009.6     994.6     974.6     959.1     949.9     942.6     925.5     152.4   
    2012
              877.5     877.5     875.9     860.8     833.1     829.8     832.4     168.5   
    2013
                  798.6     802.2     799.2     777.5     776.7     783.0     234.3   
    2014
                      801.8     791.1     794.3     793.9     790.3     273.8   
    2015
                          794.8     799.0     797.0     793.7     321.9   
    2016
                              776.7     776.8     787.4     399.5   
    2017
                                  764.4     765.7     543.0   
    2018
                                      727.3     650.8   
                                      
 
 
     
Total incurred loss and LAE for the 2009 through 2018 accident years
 
   $8,473.1       
                                      
 
 
     
   
  Paid Loss and LAE, Net of Reinsurance    
  Year Ended December 31, 
Accident 
Year
 2009
(unaudited)		  2010
(unaudited)		  2011
(unaudited)		  2012
(unaudited)		  2013
(unaudited)		  2014
(unaudited)		  2015
(unaudited)		  2016
(unaudited)		  2017
(unaudited)		  2018 
  ($ in millions) 
    2009
   $24.8      $105.0      $221.2      $366.7      $493.3      $621.8      $749.2      $814.4      $859.8      $904.1   
    2010
      33.8     108.4     208.5     322.3     438.7     573.9     644.3     688.9     735.8   
    2011
          29.6     89.4     206.4     373.4     501.8     595.1     663.0     709.1   
    2012
              46.9     106.8     201.1     316.6     435.7     521.3     587.0   
    2013
                  22.2     85.1     176.6     296.4     378.0     452.7   
    2014
                      29.8     107.5     229.6     342.9     444.7   
    2015
                          32.2     100.4     205.0     325.8   
    2016
                              34.8     121.8     242.9   
    2017
                                  34.0     110.6   
    2018
                                      33.0   
                                      
 
 
 
Cumulative paid loss and LAE for the 2009 through 2018 accident years
 
   $4,545.7   
                                      
 
 
 
Total incurred loss and LAE for the 2009 through 2018 accident years
 
   $8,473.1   
Cumulative paid loss and LAE for the 2009 through 2018 accident years
 
  4,545.7   
Unpaid loss and LAE, net of reinsurance recoverables, for accident years prior to 2009
 
  755.2   
                                      
 
 
 
Unpaid loss and LAE, net of reinsurance recoverables, as of December 31, 2018
 
   $4,682.6   
                                      
 
 
 
 
(1)
Represents the following reinsurance lines of business: directors’ and officers’ liability; errors and omissions liability; general liability; and medical malpractice.
Shorter Tailed Lines Of Business | Reinsurance Segment | Casualty & Other  
Supplemental Information About Incurred and Paid Loss and LAE Development and Reconciliation to Consolidated Balance Sheet
Reinsurance Segment - Casualty & other – Shorter-Tailed Lines of Business
(1)
 
  Incurred Loss and LAE, Net of ReinsuranceAs of
 December 31, 
2018
  Year Ended December 31,
 Accident 
 

Year
 2009
 (unaudited) 		  2010
 (unaudited) 		  2011
 (unaudited) 		  2012
 (unaudited) 		  2013
 (unaudited) 		  2014
 (unaudited) 		  2015
 (unaudited) 		  2016
 (unaudited) 		  2017
 (unaudited) 		  2018IBNR
  ($ in millions)
    2009
   $    1,169.1      $   1,114.0      $   1,086.5      $   1,066.8      $   1,071.0      $   1,063.8      $   1,064.1      $   1,062.7      $   1,062.9      $    1,069.9    $        10.2  
    2010
      1,024.5     1,007.0     985.9     978.3     967.2     954.0     950.3     943.4     927.7   13.7  
    2011
          1,031.2     1,023.6     1,007.6     992.8     973.0     963.7     959.8     976.0   24.7  
    2012
              1,022.3     1,059.9     1,056.8     1,005.5     983.9     958.9     948.4   30.8  
    2013
                  850.8     868.8     838.4     823.4     804.1     790.3   44.0  
    2014
                      850.4     833.0     808.8     784.3     772.4   63.9  
    2015
                          763.4     768.6     784.0     798.4   73.5  
    2016
                              1,118.0     1,124.4     1,111.6   139.5  
    2017
                                  1,095.9     1,046.3   491.5  
    2018
                                      1,255.4   627.7  
   
 
 
  
Total incurred loss and LAE for the 2009 through 2018 accident years
 
   $9,696.4    
                                      
 
 
  
   
  Paid Loss and LAE, Net of Reinsurance 
  Year Ended December 31,
Accident
Year
 2009
(unaudited)		  2010
(unaudited)		  2011
(unaudited)		  2012
(unaudited)		  2013
(unaudited)		  2014
(unaudited)		  2015
(unaudited)		  2016
(unaudited)		  2017
(unaudited)		  2018
  ($ in millions)
    2009
   $457.2      $745.2      $868.6      $918.7      $951.9      $975.5      $1,000.0    $1,014.3      $1,021.9      $1,028.3  
    2010
      404.9     671.3     776.5     832.7     866.7     884.8     897.5     903.7     909.6  
    2011
          376.5     606.4     752.7     820.9     858.8     880.2     894.5     906.1  
    2012
              354.8     614.5     740.0     792.7     828.3     846.5     860.2  
    2013
                  265.4     523.5     613.3     663.0     685.5     704.9  
    2014
                      251.2     421.1     523.3     572.9     604.6  
    2015
                          218.5     409.1     518.7     577.7  
    2016
                              367.2     685.6     828.7  
    2017
                                  342.8     639.1  
    2018
                                      397.9  
                                      
 
 
Cumulative paid loss and LAE for the 2009 through 2018 accident years
 
   $7,457.1  
   
 
 
Total incurred loss and LAE for the 2009 through 2018 accident years
 
   $9,696.4  
Cumulative paid loss and LAE for the 2009 through 2018 accident years
 
  7,457.1  
Unpaid loss and LAE, net of reinsurance recoverables, for accident years prior to 2009
 
  155.9  
                                      
 
 
Unpaid loss and LAE, net of reinsurance recoverables, as of December 31, 2018
 
   $2,395.2  
                                      
 
 
 
(1)
Primarily represents the following reinsurance lines of business: ocean marine and aviation; auto liability; accident and health; mortgage reinsurance; surety; and credit.
Property Insurance | Insurance Segment | RSUI  
Supplemental Information About Incurred and Paid Loss and LAE Development and Reconciliation to Consolidated Balance Sheet
Insurance Segment - RSUI - Property
 
  Incurred Loss and LAE, Net of Reinsurance    
  Year Ended December 31,      As of December 31, 2018     
Accident
Year
 2009
 (unaudited) 		  2010
 (unaudited) 		  2011
 (unaudited) 		  2012
 (unaudited) 		  2013
 (unaudited) 		  2014
 (unaudited) 		  2015
 (unaudited) 		  2016
 (unaudited) 		  2017
 (unaudited) 		  2018  IBNR  Cumulative
Number of
Reported
Claims
(1)
 
  ($ in millions, except reported claims)    
    2009
   $78.3      $        63.1      $60.1      $62.5      $        63.1      $63.7      $64.5      $64.7      $65.0      $64.9      $0.7     1,315   
    2010
      110.2     101.7     101.8     105.7     104.2     109.8     109.9     109.6     101.7     0.8     1,630   
    2011
          168.8     162.0     160.5     159.9     159.0     159.3     159.3     159.9     1.0     2,205   
    2012
              270.9     262.5     258.6     256.1     235.1     236.1     235.5     8.2     2,310   
    2013
                  157.3     157.2     150.4     152.1     152.4     152.5     2.1     2,393   
    2014
                      170.7     166.2     155.9     153.7     153.8     2.7     3,090   
    2015
                          140.5     136.1     142.6     141.3     4.6     3,001   
    2016
                              181.4     170.5     172.9     7.7     3,346   
    2017
                                  330.7     306.5     35.5     2,627   
    2018
                                      259.9     106.8     2,686   
                                      
 
 
         
Total incurred loss and LAE for the 2009 through 2018 accident years
 
   $        1,748.9           
   
 
 
         
    
  Paid Loss and LAE, Net of Reinsurance       
  Year Ended December 31,       
Accident
Year
 2009
 (unaudited) 		  2010
 (unaudited) 		  2011
 (unaudited) 		  2012
 (unaudited) 		  2013
 (unaudited) 		  2014
 (unaudited) 		  2015
 (unaudited) 		  2016
 (unaudited) 		  2017
 (unaudited) 		  2018 
  ($ in millions) 
    2009
   $36.6      $51.0      $54.3      $58.9      $61.4      $61.9      $63.3      $63.6      $63.9      $64.0   
    2010
      53.0     83.6     92.4     98.6     100.6     101.1     101.5     101.3     100.8   
    2011
          61.0     118.4     144.0     154.3     156.1     157.2     157.6     158.6   
    2012
              62.0     157.5     181.9     193.5     202.4     216.2     216.7   
    2013
                  72.7     118.7     134.0     141.1     144.0     148.7   
    2014
                      93.2     133.8     145.0     148.8     150.3   
    2015
                          70.8     106.9     120.0     129.8   
    2016
                              72.0     127.1     147.1   
    2017
                                  88.6     213.3   
    2018
                                      62.3   
                                      
 
 
 
Cumulative paid loss and LAE for the 2009 through 2018 accident years
 
   $    1,391.6   
   
 
 
 
    
Total incurred loss and LAE for the 2009 through 2018 accident years
 
   $    1,748.9           
Cumulative paid loss and LAE for the 2009 through 2018 accident years
 
  1,391.6   
Unpaid loss and LAE, net of reinsurance recoverables, for accident years prior to 2009
 
  2.6   
                                      
 
 
 
Unpaid loss and LAE, net of reinsurance recoverables, as of December 31, 2018
 
   $    359.9   
                                      
 
 
 
 
(1)
Represents claims reported by insured claimants.
Casualty Insurance | Insurance Segment | RSUI  
Supplemental Information About Incurred and Paid Loss and LAE Development and Reconciliation to Consolidated Balance Sheet
Insurance Segment - RSUI - Casualty
 
  Incurred Loss and LAE, Net of Reinsurance   As of December 31, 2018  
  Year Ended December 31, 
 Accident 
Year
 2009
 (unaudited) 		  2010
 (unaudited) 		  2011
 (unaudited) 		  2012
 (unaudited) 		  2013
 (unaudited) 		  2014
 (unaudited) 		  2015
 (unaudited) 		  2016
 (unaudited) 		  2017
 (unaudited) 		  2018  IBNR   Cumulative 
Number of
Reported
Claims
(1)
 
  ($ in millions, except reported claims)    
    2009
   $    230.1      $    233.7      $    234.4      $    236.3      $    236.3      $    232.2      $    221.8      $    212.0      $    199.4      $    201.0      $        16.8     6,884   
    2010
      204.1     204.1     204.1     203.4     194.6     178.6     177.0     171.0     168.0     10.5     6,908   
    2011
          205.9     205.9     208.3     212.1     211.6     206.8     202.0     189.7     27.1     7,516   
    2012
              226.3     226.3     230.3     242.8     238.9     233.8     231.9     46.9     7,623   
    2013
                  264.8     264.8     277.6     280.1     279.0     273.5     62.4     8,677   
    2014
                      292.0     322.7     321.1     322.4     320.3     82.8     10,173   
    2015
                          300.2     300.2     304.2     302.2     125.5     9,255   
    2016
                              290.7     293.7     301.3     125.6     8,698   
    2017
                                  282.5     286.4     175.9     8,273   
    2018
                                      290.0     246.6     7,529   
                                      
 
 
         
Total incurred loss and LAE for the 2009 through 2018 accident years
 
 $    2,564.3           
                                      
 
 
         
   
  Paid Loss and LAE, Net of Reinsurance    
  Year Ended December 31, 
Accident
Year
 2009
  (unaudited)  		  2010
(unaudited)		  2011
(unaudited)		  2012
(unaudited)		  2013
(unaudited)		  2014
(unaudited)		  2015
(unaudited)		  2016
(unaudited)		  2017
(unaudited)		  2018 
  ($ in millions) 
    2009
   $7.2      $38.0      $73.2      $101.9      $136.9      $149.5      $157.5      $166.4      $174.1      $183.2   
    2010
      4.7     30.9     70.1     90.1     122.6     128.6     132.9     149.2     152.3   
    2011
          6.5     31.9     66.7     100.3     118.4     138.5     150.0     153.6   
    2012
              6.8     38.4     96.0     125.5     144.0     159.3     166.7   
    2013
                  10.1     50.0     103.4     146.2     176.6     191.3   
    2014
                      13.0     69.5     130.1     179.1     206.5   
    2015
                          9.0     47.3     96.6     129.2   
    2016
                              13.7     69.2     123.6   
    2017
                                  9.4     63.6   
    2018
                                      13.0   
   
 
 
 
Cumulative paid loss and LAE for the 2009 through 2018 accident years
 
   $1,383.0   
   
 
 
 
Total incurred loss and LAE for the 2009 through 2018 accident years
 
   $2,564.3   
Cumulative paid loss and LAE for the 2009 through 2018 accident years
 
  1,383.0   
Unpaid loss and LAE, net of reinsurance recoverables, for accident years prior to 2009
 
  65.6   
   
 
 
 
Unpaid loss and LAE, net of reinsurance recoverables, as of December 31, 2018
 
   $1,246.9   
   
 
 
 
 
(1)
Represents claims reported by insured claimants.