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Investment Funds (Tables)
 12 Months Ended
Dec. 31, 2017
Equity Method Investments and Joint Ventures [Abstract]  
Schedule of Investment Funds
Investment funds consist of the following:
 
Carrying Value
as of December 31,
 
Income (Losses)
(In thousands)
2017
 
2016
 
2017
 
2016
 
2015
Real estate
$
606,995

 
$
641,783

 
$
45,068

 
$
50,415

 
$
58,032

Energy
82,882

 
91,448

 
(15,764
)
 
19,747

 
(37,373
)
Hedged equity
—

 
73,913

 
(1,164
)
 
3,334

 
(2,762
)
Other funds
465,800

 
391,002

 
40,029

 
25,805

 
44,331

Total
$
1,155,677

 
$
1,198,146

 
$
68,169

 
$
99,301

 
$
62,228