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Accumulated Other Comprehensive Loss
 12 Months Ended
Dec. 31, 2019
Equity [Abstract]  
Accumulated Other Comprehensive Loss Accumulated Other Comprehensive Loss
Accumulated other comprehensive loss (“AOCI”) consists of actuarial gain/(loss) on retirement benefits and changes in the cumulative foreign currency translation adjustments. In addition, the Company enters into foreign currency exchange contracts, which are designated as cash flow hedges in accordance with ASC 815. Changes in the fair values of these foreign currency exchange contracts are recognized in AOCI on the Company's consolidated balance sheets until the settlement of those contracts. The balances as of December 31, 2019 and 2018 are as follows:
 
As of
 
December 31, 2019
 
December 31, 2018
Cumulative foreign currency translation loss
$
(87,591
)
 
$
(84,105
)
Unrealized gain/(loss) on cash flow hedges
4,604

 
(218
)
Retirement benefits
(1,780
)
 
918

Income tax expense relating to above (1)
(125
)
 
(62
)
Accumulated other comprehensive loss
$
(84,892
)
 
$
(83,467
)


(1) These are income tax expense recognized on cash flow hedges and retirement benefits. Refer to Note 22 to the consolidated financial statements.