Non-current liabilities

12 Months Ended

Dec. 31, 2016

Liabilities, Noncurrent [Abstract]

Accounts Payable, Accrued Liabilities, and Other Liabilities Disclosure, Noncurrent

Non-current liabilities

Non-current liabilities consists of the following:

	December 31, 2016		December 31, 2015
Derivative instruments	$	828	$	1,132
Unrecognized tax benefits	3,640		3,066
Deferred rent	7,237		6,515
Retirement benefits	1,977		1,441
Other non-current liabilities	1,137		5,501
Non-current liabilities	$	14,819	$	17,655