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Realized And Unrealized Investment Gains and Losses (Tables)
 12 Months Ended
Dec. 31, 2016
Realized and Unrealized Investment Gains (Losses) [Abstract]  
Realized and Unrealized Investment Gains (Losses)
Realized and unrealized investment gains (losses) are as follows:
(In thousands)
2016
 
2015
 
2014
Realized investment gains (losses):
 

 
 

 
 

Fixed maturity securities:
 

 
 

 
 

Gains
$
72,215

 
$
23,755

 
$
39,113

Losses
(6,434
)
 
(4,065
)
 
(4,420
)
Equity securities available for sale
14,201

 
9,639

 
38,296

Investment funds
58,861

 
93,529

 
96,204

Real estate
7,757

 
—

 
85,659

Other (1)
138,519

 
2,775

 
—

Net realized gains on investments sales
285,119

 
125,633

 
254,852

Other-than-temporary impairments (2)
(18,114
)
 
(33,309
)
 
—

Net investment gains
267,005

 
92,324

 
254,852

Income tax expense
(93,452
)
 
(32,313
)
 
(89,198
)
  After-tax realized investment gains
$
173,553

 
$
60,011

 
$
165,654
Change In Unrealized Gains (Losses)
Change in unrealized gains (losses) of available for sales securities:
 

 
 

 
 

Fixed maturity securities
$
(107,094
)
 
$
(144,445
)
 
$
155,765

Previously impaired fixed maturity securities
451

 
(174
)
 
865

Equity securities available for sale
465,727

 
(27,809
)
 
(69,016
)
Investment funds
12,631

 
(19,758
)
 
(14,725
)
Total change in unrealized investment gains (losses)
371,715

 
(192,186
)
 
72,889

Income tax benefit (expense)
(125,315
)
 
66,644

 
(23,223
)
Noncontrolling interests
59

 
38

 
(33
)
 After-tax change in unrealized investment gains (losses) of available for sale securities
$
246,459

 
$
(125,504
)
 
$
49,633