Balance Sheet Details

9 Months Ended

Sep. 30, 2016

Inventories

Inventories consist of the following (in thousands):



	September 30, 2016		December 31, 2015
Finished goods	$	30,095	$	47,094
Raw materials and components	9,875		8,743
Total inventories	$	39,970	$	55,837

Accrued Expenses and Other Current Liabilities

Accrued expenses and other current liabilities consist of the following (in thousands):



	September 30, 2016		December 31, 2015
Royalties	$	4,125	$	2,740
Payroll and related expenses	6,705		4,406
Warranty obligations	516		932
Market development funds and price protection	2,544		2,805
Professional fees	2,152		1,060
Accrued interest	1,925		274
Deferred revenue	2,168		1,836
Restructuring	829		1,044
Acquisition-related liabilities	7,384		5,274
Divestiture-related liabilities	1,537		—
Other	7,206		5,242
Total accrued expenses and other current liabilities	$	37,091	$	25,613

Accrued Warranty Obligations

Accrued warranty obligations activity during the nine months ended September 30, 2016 was as follows (in thousands):



Warranty liability at December 31, 2015	$	932
Additions charged to operations	351
Deductions from liability	(767		)
Warranty liability at September 30, 2016	$	516