Balance Sheet Details - (Tables)

6 Months Ended

Jun. 30, 2016

Balance Sheet Detail [Abstract]

Schedule of Inventory, Current [Table Text Block]

Inventories are comprised of the following:

	June 30, 2016		December 31, 2015
Materials	$	36,211	$	39,022
Work-in-process	21,200		18,918
Finished goods	13,150		13,550
Total inventories	$	70,561	$	71,490

Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Table Text Block]

Prepaid expenses and other current assets

Prepaid expenses and other current assets are comprised of the following:

	June 30, 2016		December 31, 2015
Patent litigation judgment	$	14,632	$	—
Other	7,794		8,137
Total prepaid expenses and other current assets	$	22,426	$	8,137

Property, Plant and Equipment [Table Text Block]

Property, plant and equipment, net is comprised of the following:

	June 30, 2016		December 31, 2015
Land and building	$	2,584	$	5,024
Machinery and equipment	24,244		21,683
Furniture and fixtures	2,676		3,414
Computer equipment	5,712		5,304
Leasehold improvements	8,127		7,884
	43,343		43,309
Less: Accumulated depreciation	29,830		30,963
Total property, plant and equipment, net	$	13,513	$	12,346

Schedule of Other Assets [Table Text Block]

Other assets is comprised of the following:

	June 30, 2016		December 31, 2015
Deferred income taxes	$	35,047	$	34,973
Other	594		559
Total other assets	$	35,641	$	35,532

Other Current liabilities [Table Text Block]

Other current liabilities is comprised of the following:

	June 30, 2016		December 31, 2015
Litigation accrual	$	3,252	$	3,252
Contingent consideration - acquisitions	717		1,407
Other	6,665		7,756
Total other current liabilities	$	10,634	$	12,415

Other Non-current liabilities [Table Text Block]

Other non-current liabilities is comprised of the following:

	June 30, 2016		December 31, 2015
Unrecognized tax benefits (including interest)	$	2,991	$	3,152
Contingent consideration - acquisitions	3,009		2,296
Deferred revenue	1,128		1,206
Other	3,260		2,900
Total other non-current liabilities	$	10,388	$	9,554