Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2015	Sep. 30, 2014
Interest Paid		$ 23	$ 106
Property and Equipment Balances, Accounts Payable and Accrued Expenses	$ 378	378
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax	(106)	(194)	(56)
Cash flows from operating activities
Net loss	(2,462)	(8,382)	(20,948)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	2,302	6,267	5,838
Deferred Income Tax Expense (Benefit)		240	240
Non-cash interest expense (income)		0	(1)
Share‑based compensation		7,782	6,404
Changes in operating assets and liabilities, net of acquisitions:
Accounts receivable		(1,739)	(1,598)
Prepaid expenses and other assets		138	245
Deferred revenue, including long-term portion		9,537	7,816
Accounts payable		356	360
Accrued expenses and other		(20)	1,774
Net cash provided by (used in) operating activities		14,179	130
Cash flows from investing activities
Increase (Decrease) in Restricted Cash		(594)	(1,250)
Purchases of property and equipment, including software development costs		(11,079)	(5,794)
Net cash used in investing activities		(11,673)	(7,044)
Cash flows from financing activities
Principal payments on loan payable		0	(105)
Payments on capital leases		(412)	(608)
Proceeds from exercise of options and warrants		4,464	2,213
Payments for Repurchase of Common Stock		(60)	(4,068)
Net cash provided by financing activities		3,992	(4,131)
Effect of changes in foreign exchange rates on cash and cash equivalents		(89)	(50)
Net increase (decrease) in cash and cash equivalents		6,409	(11,095)
Cash and cash equivalents, beginning of period		66,758	77,130
Cash and cash equivalents, end of period	73,167	73,167
Supplemental Cash Flow Information [Abstract]
Accretion		0	199
Net Income (Loss) Available to Common Stockholders, Basic	(2,462)	(8,382)	(20,978)
Payment to Acquire Non-controlling Interest, Equity		0	(1,563)
Redeemable Non-Controlling Interest [Member]
Supplemental Cash Flow Information [Abstract]
Accretion	$ 0	$ 0	$ 199