CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Net revenues:
Products	$ 88,945	$ 105,330	$ 245,124	$ 287,215
Services	48,491	37,099	121,665	114,840
Total net revenues	137,436	142,429	366,789	402,055
Cost of revenues:
Products	32,256	37,807	92,416	107,898
Services	15,416	14,981	46,054	45,975
Amortization of intangible assets	1,950	0	2,113	50
Total cost of revenues	49,622	52,788	140,583	153,923
Gross profit	87,814	89,641	226,206	248,132
Operating expenses:
Research and development	25,225	22,154	71,708	67,178
Marketing and selling	31,564	31,410	92,420	98,522
General and administrative	15,834	20,644	52,646	58,959
Amortization of intangible assets	786	373	1,568	1,251
Restructuring costs (recoveries), net	0	0	539	(165)
Total operating expenses	73,409	74,581	218,881	225,745
Operating income	14,405	15,060	7,325	22,387
Interest income	4	1	43	71
Interest expense	(2,473)	(458)	(3,765)	(1,246)
Other (expense) income, net	(50)	2	(959)	12
Income before income taxes	11,886	14,605	2,644	21,224
Provision for (benefit from) income taxes	768	365	(4,221)	1,427
Net income	$ 11,118	$ 14,240	$ 6,865	$ 19,797
Net income per common share – basic	$ 0.28	$ 0.36	$ 0.17	$ 0.51
Weighted-average common shares outstanding – basic	39,231	39,133	39,417	39,117
Weighted-average common shares outstanding – diluted	39,750	39,201	40,727	39,164