Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Cash flows from operating activities:
Net loss	$ (14,874)	$ (11,376)
Adjustments to reconcile net loss to net cash (used in) provided by operating activities:
Amortization of deferred implementation, solution and other costs	3,198	2,033
Depreciation and amortization	3,122	2,071
Amortization of debt issuance costs	72	44
Amortization of premiums on investments	24	0
Stock-based compensation expenses	3,087	1,122
Loss from discontinued operations	0	199
Allowance for sales credits	51	56
Loss on disposal of long-lived assets	0	18
Unoccupied lease charges	0	236
Changes in operating assets and liabilities:
Accounts receivable, net	2,507	(1,053)
Prepaid expenses and other current assets	(1,241)	(443)
Deferred solution and other costs	(3,500)	(1,947)
Deferred implementation costs	(3,049)	(2,550)
Other long-term assets	211	104
Accounts payable	(427)	(233)
Accrued liabilities	(2,937)	1,841
Deferred revenue	9,147	5,663
Deferred rent and other long-term liabilities	351	4,250
Net cash (used in) provided by continuing operations	(4,258)	35
Net cash used in discontinued operating activities	0	(236)
Net cash used in operating activities	(4,258)	(201)
Cash flows from investing activities:
Purchases of investments	(18,072)	0
Purchases of property and equipment	(3,815)	(10,058)
Acquisitions and purchase of intangible assets	0	(125)
Increase in restricted cash	(713)	0
Cash included in distribution of spin-off	0	(46)
Net cash used in investing activities	(22,600)	(10,229)
Cash flows from financing activities:
Proceeds from issuance of preferred stock, net of issuance costs	0	18,995
Proceeds from borrowings on line of credit	12,500	6,350
Payments on line of credit	(18,710)	(2,682)
Payments on capital lease obligations	(606)	(510)
Proceeds from the issuance of common stock, net of issuance costs	86,286	0
Proceeds from exercise of stock options to purchase common stock	1,053	339
Net cash provided by financing activities	80,523	22,492
Net increase in cash and cash equivalents	53,665	12,062
Cash and cash equivalents, beginning of period	18,675	9,111
Cash and cash equivalents, end of period	72,340	21,173
Supplemental disclosures of cash flow information:
Cash paid for taxes	55	164
Cash paid for interest	207	269
Supplemental disclosure of non-cash investing activities:
Equipment acquired under capital lease	$ 0	$ 975