Balance Sheet Details - (Tables)

9 Months Ended

Sep. 30, 2014

Balance Sheet Detail [Abstract]

Schedule of Inventory, Current [Table Text Block]

Inventories

Inventories are comprised of the following:

	September 30, 2014		December 31, 2013
Materials	$	29,822	$	31,194
Work-in-process	26,437		19,867
Finished goods	9,570		10,290
Total inventories	$	65,829	$	61,351

Property, Plant and Equipment [Table Text Block]

Property, Plant and Equipment

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

	September 30, 2014		December 31, 2013
Land and building	$	5,024	$	5,024
Machinery and equipment	21,322		20,827
Furniture and fixtures	3,498		4,043
Computer equipment	6,183		5,568
Leasehold improvements	7,797		7,744
	43,824		43,206
Less: Accumulated depreciation	31,580		30,148
Total property, plant and equipment, net	$	12,244	$	13,058

Schedule of Other Assets [Table Text Block]

Other assets

Other assets is comprised of the following:

	September 30, 2014		December 31, 2013
Deferred income taxes	$	27,377	$	25,547
Other	1,470		1,776
Total other assets	$	28,847	$	27,323

Other Current liabilities [Table Text Block]

Other current liabilities

Other current liabilities is comprised of the following:

	September 30, 2014		December 31, 2013
Litigation accrual	$	3,259	$	4,293
Deferred revenue	8,536		8,383
Contingent consideration - acquisitions	583		868
Other	6,365		5,374
Total other current liabilities	$	18,743	$	18,918

Other Non-current liabilities [Table Text Block]

Other non-current liabilities

Other non-current liabilities is comprised of the following:

	September 30, 2014		December 31, 2013
Unrecognized tax benefits (including interest)	$	3,537	$	2,806
Contingent consideration - acquisitions	4,320		4,340
Other	1,800		1,772
Total other non-current liabilities	$	9,657	$	8,918