Accrued Expenses (Tables)

12 Months Ended

Dec. 31, 2016

Accrued Expenses [Abstract]

Accrued Expenses

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

	December 31,
	2015		2016
Accrued sales force commissions and other payments	$	166,273	$	126,153
Accrued other taxes		35,922		31,748
Accrued payroll and other employee expenses		24,390		25,412
Accrued payable to vendors		40,914		28,456
Accrued royalties		9,701		4,767
Sales return reserve		7,752		6,125
Deferred revenue		6,644		13,494
Other		19,320		38,868
	$	310,916	$	275,023