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Accumulated Other Comprehensive (Loss)/Income
12 Months Ended
Dec. 31, 2017
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]  
Accumulated Other Comprehensive (Loss)/ Income
Accumulated Other Comprehensive (Loss)/Income

The changes in accumulated other comprehensive income (loss) during the year ended December 31, 2017, are as follows: 
 
Foreign
Currency
 
Unrealized 
(Loss) 
Income on
Intra-Entity
Foreign
Currency
Transactions
 
Unrealized Holding
Gains
(Losses) on
Available-for-Sale
Securities
 
Total
Balance at December 31, 2016
$
(37,311
)
 
$
(5,017
)
 
$
(22
)
 
$
(42,350
)
Other comprehensive income (loss)
17,027

 
3,322

 
28

 
20,377

Tax effect

 
(1,390
)
 
(10
)
 
(1,400
)
Comprehensive income (loss)
17,027

 
1,932

 
18

 
18,977

Balance at December 31, 2017
$
(20,284
)
 
$
(3,085
)
 
$
(4
)
 
$
(23,373
)

The changes in accumulated other comprehensive income (loss) during the year ended December 31, 2016, are as follows:
(Restated)
Foreign
Currency
 
Unrealized 
(Loss) 
Income on
Intra-Entity
Foreign
Currency
Transactions
 
Unrealized Holding
Gains
(Losses) on
Available-for-Sale
Securities
 
Total
Balance at December 31, 2015
$
(33,197
)
 
$
(4,292
)
 
$
(25
)
 
$
(37,514
)
Other comprehensive income (loss)
(4,114
)
 
(789
)
 
5

 
(4,898
)
Tax effect

 
64

 
(2
)
 
62

Total comprehensive income (loss)
(4,114
)
 
(725
)
 
3

 
(4,836
)
Balance at December 31, 2016
$
(37,311
)
 
$
(5,017
)
 
$
(22
)
 
$
(42,350
)


The changes in accumulated other comprehensive income (loss) during the year ended December 31, 2015, are as follows:
(Restated)
Foreign
Currency
 
Unrealized 
(Loss) 
Income on
Intra-Entity
Foreign
Currency
Transactions
 
Unrealized Holding
Gains
(Losses) on
Available-for-Sale
Securities
 
Total
Balance at December 31, 2014
$
(15,492
)
 
$
(2,957
)
 
$
(5
)
 
$
(18,454
)
Other comprehensive income (loss)
(17,705
)
 
(2,722
)
 
(30
)
 
(20,457
)
Tax effect

 
1,387

 
10

 
1,397

Total comprehensive income (loss)
(17,705
)
 
(1,335
)
 
(20
)
 
(19,060
)
Balance at December 31, 2015
$
(33,197
)
 
$
(4,292
)
 
$
(25
)
 
$
(37,514
)