Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Cash flows from operating activities
Net (loss) income	$ (18,983)	$ 12,558
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Depreciation and amortization	6,066	10,588
Deferred income taxes	9
Stock-based compensation	4,244	4,438
Gain on disposal of business and online properties		(39,149)
Other	(48)	102
Change in operating assets and liabilities, net of effect of acquisitions and disposals:
Accounts receivable, net	415	3,118
Prepaid expenses and other current assets	1,215	629
Other long-term assets	(32)	(17)
Accounts payable	(1,200)	(20)
Accrued expenses and other liabilities	(3,019)	(2,379)
Deferred revenue	(450)	(153)
Net cash (used in) provided by operating activities	(11,783)	(10,285)
Cash flows from investing activities
Purchases of property and equipment	(2,238)	(2,539)
Purchases of intangible assets	(121)	(4)
Cash received from disposal of businesses and online properties, net of cash disposed	385	35,906
Cash paid for acquisitions, net of cash acquired	(6,304)
Restricted deposits	742	136
Other	3	48
Net cash provided by (used in) investing activities	(7,533)	33,547
Cash flows from financing activities
Proceeds from exercises of stock options and purchases under ESPP	1,525	91
Repurchases of common stock	(65)
Taxes paid on net share settlements of restricted stock units	(2,367)	(994)
Cash paid for acquisition holdback	(119)
Other	(32)
Net cash used in financing activities	(1,058)	(903)
Effect of foreign currency on cash and cash equivalents	(20)	(2)
Change in cash and cash equivalents	(20,394)	22,357
Cash and cash equivalents, beginning of period	50,864	38,570
Cash and cash equivalents, end of period	30,470	$ 60,927
Supplemental disclosure of cash flows
Stock issued for acquisitions	$ 1,603