XML 47 R36.htm IDEA: XBRL DOCUMENT v3.5.0.2
Investments Available-For-Sale Securities (Details) - USD ($)
$ in Thousands
Sep. 30, 2016
Dec. 31, 2015
Schedule of Available-for-sale Securities [Line Items]    
Cost $ 128,396 $ 147,753
Gross unrealized gains 1,779 451
Gross unrealized losses (967) (6,456)
Available-for-sale equity securities 129,208 141,748
Equity Funds [Member]    
Schedule of Available-for-sale Securities [Line Items]    
Cost 23,649 32,357
Gross unrealized gains 1,623 342
Gross unrealized losses (58) (2,416)
Available-for-sale equity securities 25,214 30,283
Fixed-Income Funds [Member]    
Schedule of Available-for-sale Securities [Line Items]    
Cost 104,747 115,396
Gross unrealized gains 156 109
Gross unrealized losses (909) (4,040)
Available-for-sale equity securities $ 103,994 $ 111,465