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Shareholders’ Equity (Tables)
 3 Months Ended
Mar. 31, 2016
Equity [Abstract]  
Schedule of Accumulated Other Comprehensive Income (Loss)
Changes in components of accumulated other comprehensive income (in thousands):
 
 
 
Quarters Ended
March 31,
 
 
 
2016
 
2015
Investments
 
 
 
 
 
Accumulated other comprehensive income (loss), beginning of period
 
$
1,297

 
$
2,252

 
Unrealized gains (losses), net of tax effects of $90 and $116 in 2016 and 2015
 
151

 
205

 
Reclassification adjustments for losses (gains) included in other income (expense), net of tax effects of $0 and $(1) in 2016 and 2015
 
—

 
(299
)
 
Net current period other comprehensive income (loss)
 
151

 
(94
)
 
Accumulated other comprehensive income (loss) balance, end of period
 
$
1,448

 
$
2,158

Foreign currency translation
 
 
 
 
 
Accumulated other comprehensive income (loss), beginning of period
 
$
(60,777
)
 
$
(57,504
)
 
Translation adjustments
 
700

 
(2,585
)
 
Net current period other comprehensive income (loss)
 
700

 
(2,585
)
 
Accumulated other comprehensive income (loss) balance, end of period
 
$
(60,077
)
 
$
(60,089
)
Total accumulated other comprehensive income (loss), end of period
 
$
(58,629
)
 
$
(57,931
)