Accrued Expenses (Tables)

12 Months Ended

Dec. 31, 2015

Accrued Expenses [Abstract]

Accrued Expenses

Accrued expenses consist of the following (U.S. dollars in thousands):

	December 31,
	2014		2015
Accrued sales force commissions and other payments	$	167,914	$	166,273
Accrued other taxes		32,246		35,922
Accrued payroll and other employee expenses		29,220		24,390
Accrued payable to vendors		28,341		40,914
Accrued royalties		10,475		9,701
Sales return reserve		10,118		7,752
Deferred revenue		6,160		6,644
Other		16,373		19,320
	$	300,847	$	310,916