Non-current liabilities (Tables)

6 Months Ended

Jun. 30, 2017

Liabilities, Noncurrent [Abstract]

Summary of Non-Current Liabilities

Non-current liabilities consists of the following:

	As of
	June 30, 2017		December 31, 2016
Derivative instruments	$	1,421	$	828
Unrecognized tax benefits	692		3,640
Deferred rent	7,855		7,237
Retirement benefits	2,779		1,977
Others	3,419		1,137
Non-current liabilities	$	16,166	$	14,819