Accrued Expenses

12 Months Ended

Dec. 31, 2017

Payables and Accruals [Abstract]

Accrued Expenses

Accrued Expenses

Accrued expenses consisted of the following (in thousands):

	December 31,
	2017		2016
Company bonuses	$	13,721	$	11,462
Salaries, commissions, and payroll taxes	9,944		7,193
Acquisition deferred and contingent liabilities	6,022		2,115
Vacation	5,479		4,860
Warranty obligations	4,701		4,335
Foreign retirement obligations	4,260		3,388
Other	24,122		9,186
	$	68,249	$	42,539

The changes in the warranty obligation were as follows (in thousands):

Balance as of December 31, 2015	$	4,174
Provisions for warranties issued during the period	3,001
Fulfillment of warranty obligations	(2,689		)
Foreign exchange rate changes	(151		)
Balance as of December 31, 2016	4,335
Provisions for warranties issued during the period	2,843
Fulfillment of warranty obligations	(3,109		)
Foreign exchange rate changes	632
Balance as of December 31, 2017	$	4,701