Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 115,237	$ 9,633
Short-term deposits	102	4,344
Restricted cash	0	171
Trade receivables (net of allowance for doubtful accounts of $ 200 at September 30, 2014 and $ 139 at December 31, 2013)	21,146	28,268
Prepaid expenses and other current assets	1,496	1,357
Total current assets	137,981	43,773
Long-term assets:
Other assets	950	1,625
Property and equipment, net	2,737	1,856
Total long-term assets	3,687	3,481
Total assets	141,668	47,254
Current liabilities:
Trade payables	2,754	2,163
Accrued expenses and other liabilities	14,881	11,643
Deferred revenues	25,914	26,591
Total current liabilities	43,549	40,397
Long-term liabilities:
Deferred revenues	3,083	2,109
Warrants to purchase convertible preferred stock	0	2,866
Severance pay	1,445	1,101
Other liabilities	445	14
Total long-term liabilities	4,973	6,090
Share capital
Common stock of $ 0.001 par value - Authorized: 200,000,000 shares at September 30, 2014 and 26,000,000 at December 31, 2013; Issued and outstanding: 24,564,444 shares at September 30, 2014 and 3,953,314 shares at December 31, 2013	24	4
Accumulated other comprehensive loss	(542)
Additional paid-in capital	160,484	4,741
Accumulated deficit	(66,820)	(47,753)
Total stockholders' equity (deficiency)	93,146	(43,008)
Total liabilities, convertible preferred stock and stockholders' equity (deficiency)	141,668	47,254
Preferred Stock [Member]
Convertible preferred stock:
Preferred A, B, C, D and E stock of $ 0.001 par value - Authorized: no shares at September 30, 2014 and 16,986,384 shares at December 31, 2013; Issued and outstanding: no shares at September 30, 2014 and 15,082,141 shares at December 31, 2013		43,775
Share capital
Total stockholders' equity (deficiency)	$ 0	$ 43,775