Prepaid expenses and other current assets (Tables)

12 Months Ended

Dec. 31, 2016

Deferred Costs Capitalized Prepaid And Other Assets Disclosure [Abstract]

Prepaid Expenses and Other Current Assets

Prepaid expenses and other current assets consist of the following:

	As of December 31,
	2015		2016
Advance income and non-income taxes	$	52,953	$	50,676
Deferred transition costs		36,620		45,252
Derivative instruments		18,284		34,730
Prepaid expenses		12,565		22,222
Customer acquisition cost		6,687		11,126
Employee advances		3,878		6,880
Deposits		1,820		2,688
Advances to suppliers		8,028		10,059
Others		13,190		5,516
	$	154,025	$	189,149