CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Cash flows from operating activities:
Net income	$ 5,557	$ 17,442
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Depreciation and amortization	9,352	11,800
Recovery from doubtful accounts	(158)	30
Gain on sales of assets	0	(125)
Stock-based compensation expense	3,398	4,185
Non-cash interest expense	147	147
Foreign currency transaction losses	(317)	(84)
(Benefit from) provision for deferred taxes	(16)	9
Changes in operating assets and liabilities:
Accounts receivable	7,668	12,277
Inventories	5,424	5,896
Prepaid expenses and other current assets	833	1,225
Accounts payable	5,666	6,661
Accrued expenses, compensation and benefits and other liabilities	14,842	6,516
Income taxes payable	583	680
Deferred revenues	36,879	44,501
Net cash used in operating activities	(26,100)	(5,556)
Cash flows from investing activities:
Purchases of property and equipment	(6,391)	(5,290)
Proceeds from divestiture of consumer business	1,500	0
Proceeds from sale of assets	0	125
Increase in other long-term assets	11	(18)
Net cash used in investing activities	(4,880)	(5,183)
Cash flows from financing activities:
Proceeds from the issuance of common stock under employee stock plans	1	177
Common stock repurchases for tax withholdings for net settlement of equity awards	(141)	(232)
Proceeds from revolving credit facilities	11,500	0
Payments on revolving credit facilities	6,500	0
Net cash provided by (used in) financing activities	4,860	(55)
Effect of exchange rate changes on cash and cash equivalents	948	(3,492)
Net decrease in cash and cash equivalents	(25,154)	(14,286)
Cash and cash equivalents at beginning of period	48,203	70,390
Cash and cash equivalents at end of period	23,049
Cash paid for income taxes, net of refunds	1,294	893
Cash paid for interest	$ 641	$ 562