CONDENSED CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014		Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 126,379		$ 104,531
Accounts receivable, net of allowances of $942 and $490, respectively	82,560		58,597
Inventories	31,542		31,457
Prepaid expenses	16,739		18,883
Deferred tax assets	12,636		12,635
Other current assets	6,040		7,675
Total current assets	275,896		233,778
Property and equipment, net	37,257		35,254
Non-current net investment in sales-type leases	10,872	[1]	11,485	[1]
Goodwill	111,343		111,343
Intangible assets, net	79,561		81,602
Non-current deferred tax assets	1,102		1,102
Other assets	21,220		17,937
Total assets	537,251		492,501
Current liabilities:
Accounts payable	18,965		16,471
Accrued compensation	15,694		19,604
Accrued liabilities	16,170		13,746
Deferred service revenue	21,720		22,626
Deferred gross profit	30,745		19,957
Total current liabilities	103,294		92,404
Non-current deferred service revenue	21,309		17,763
Non-current deferred tax liabilities	29,023		28,162
Other long-term liabilities	6,004		5,175
Commitments and Contingencies (Note 10 and Note 11)
Stockholders’ equity:	159,630		143,504
Stockholders’ equity:
Total stockholders’ equity	377,621		348,997
Total liabilities and stockholders’ equity	$ 537,251		$ 492,501

[1] This amount is net of an immaterial allowance for doubtful accounts as of June 30, 2014 and December 31, 2013.