Actua (ACTA) 10-Q 9 Aug 17 2017 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2017	Aug. 08, 2017
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2017
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	Q2
Trading Symbol	ACTA
Entity Registrant Name	Actua Corp
Entity Central Index Key	1,085,621
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		32,722,350

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Current assets
Cash and cash equivalents	$ 68,903	$ 97,364
Restricted cash	1,435	1,648
Accounts receivables, net of allowance ($919-2017; $1,157-2016)	20,031	21,033
Prepaid expenses and other current assets	3,256	3,673
Total current assets	93,625	123,718
Fixed assets, net of accumulated depreciation and amortization ($9,790-2017; $8,666-2016)	4,884	5,359
Goodwill	231,424	231,787
Intangible assets, net	64,962	73,406
Deferred tax asset	737	762
Cost method businesses	17,473	17,250
Other assets, net	1,534	1,436
Total assets	414,639	453,718
Current liabilities
Short-term debt	1,320	1,320
Accounts payable	12,582	12,269
Accrued expenses	9,533	10,149
Accrued compensation and benefits	5,948	8,381
Deferred revenue	37,603	35,834
Total current liabilities	66,986	67,953
Deferred rent	4,166	4,165
Deferred revenue	933	990
Contingent consideration	8,065	7,444
Other liabilities	1,532	1,824
Total liabilities	81,682	82,376
Redeemable noncontrolling interests (Note 4, Consolidated Businesses)	5,927	5,858
Actua Corporation’s stockholders’ equity
Preferred stock, $0.01 par value; 10,000 shares authorized, none issued or outstanding	0	0
Common stock, $0.001 par value; 2,000,000 shares authorized, 46,484 shares (2017) and 46,523 shares (2016) issued	47	47
Treasury stock, at cost 13,412 shares (2017) and 11,586 shares (2016)	(155,322)	(129,774)
Additional paid-in capital	3,582,977	3,578,204
Accumulated deficit	(3,111,769)	(3,095,236)
Accumulated other comprehensive income (loss)	53	99
Total Actua Corporation’s stockholders’ equity	315,986	353,340
Noncontrolling interests	11,044	12,144
Total equity	327,030	365,484
Total liabilities, redeemable noncontrolling interests and equity	$ 414,639	$ 453,718

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Statement of Financial Position [Abstract]
Accounts receivable, allowance	$ 919	$ 1,157
Accumulated depreciation and amortization	$ 9,790	$ 8,666
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	10,000,000	10,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	2,000,000,000	2,000,000,000
Common stock, shares issued (in shares)	46,484,000	46,523,000
Treasury stock, shares at cost (in shares)	13,412,000	11,586,000

CONSOLIDATED STATEMENTS OF OPER

CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Income Statement [Abstract]
Revenue	$ 31,189	$ 26,854	$ 61,696	$ 52,040
Operating expenses
Cost of revenue	7,884	7,288	15,678	14,010
Sales and marketing	9,763	10,461	19,670	20,580
General and administrative	11,786	11,372	24,718	23,698
Research and development	6,911	5,388	13,644	10,695
Amortization of intangible assets	4,333	3,626	7,996	7,208
Impairment related and other	310	117	670	348
Total operating expenses	40,987	38,252	82,376	76,539
Operating income (loss)	(9,798)	(11,398)	(20,680)	(24,499)
Other income (loss), net	2,558	(15)	3,425	(105)
Interest income	142	39	297	87
Interest expense	(44)	(33)	(71)	(66)
Income (loss) before income taxes and noncontrolling interests	(7,142)	(11,407)	(17,029)	(24,583)
Income tax benefit (expense)	(184)	(72)	(449)	(198)
Income (loss) from continuing operations	(7,326)	(11,479)	(17,478)	(24,781)
Income (loss) from discontinued operations, net of tax	0	(2,079)	0	(4,160)
Net income (loss)	(7,326)	(13,558)	(17,478)	(28,941)
Less: Net income (loss) attributable to the noncontrolling interests	(463)	(817)	(945)	(1,869)
Net income (loss) attributable to Actua Corporation	(6,863)	(12,741)	(16,533)	(27,072)
Amounts attributable to Actua Corporation:
Net income (loss) from continuing operations	(6,863)	(10,763)	(16,533)	(23,123)
Net income (loss) from discontinued operations	0	(1,978)	0	(3,949)
Net income (loss) attributable to Actua Corporation	$ (6,863)	$ (12,741)	$ (16,533)	$ (27,072)
Basic and diluted income (loss) per share attributable to Actua Corporation:
Income (loss) from continuing operations (in dollars per share)	$ (0.22)	$ (0.30)	$ (0.52)	$ (0.62)
Income (loss) from discontinued operations (in dollars per share)	0	(0.05)	0	(0.11)
Net income (loss) (in dollars per share)	$ (0.22)	$ (0.35)	$ (0.52)	$ (0.73)
Shares used in computation of basic and diluted income (loss) per share (in shares)	31,267	36,760	31,687	37,027
Net income (loss)	$ (7,326)	$ (13,558)	$ (17,478)	$ (28,941)
Other comprehensive income (loss):
Foreign currency translation adjustment	(34)	(38)	(46)	(112)
Comprehensive income (loss)	(7,360)	(13,596)	(17,524)	(29,053)
Less: Comprehensive income (loss) attributable to the noncontrolling interests	(463)	(817)	(945)	(1,869)
Comprehensive income (loss) attributable to Actua Corporation	$ (6,897)	$ (12,779)	$ (16,579)	$ (27,184)

CONSOLIDATED STATEMENTS OF CHAN

CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY - USD ($) $ in Thousands	Total	Common Stock	Treasury Stock	Additional Paid-In Capital	Accumulated Deficit	Accumulated Other Comprehensive Income (Loss) (AOCI)	Non-controlling Interests
Balance as of at Dec. 31, 2015	$ 357,971	$ 47	$ (55,509)	$ 3,563,848	$ (3,165,321)	$ 40	$ 14,866
Balance as of (in shares) at Dec. 31, 2015		46,763,000	(5,988,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Equity-based compensation expense related to stock appreciation rights (SARs) and stock options	108			108
Equity-based compensation related to deferred stock units (DSUs)	193			193
Equity-based compensation related to restricted stock (RS)	7,017			7,017
Issuance of RS, net of forfeitures primarily related to satisfying tax withholdings	(1,536)			(1,536)
Issuance of RS, net of forfeitures primarily related to satisfying tax withholdings (in shares)		(258,000)
Impact of redeemable noncontrolling interests accretion	(1,103)			(1,103)
Impact of subsidiary equity transactions	1,549			1,526		(112)	135
Repurchase of common stock	$ (9,533)		$ (9,533)
Repurchase of common stock (in shares)	(1,010,000)		(1,010,000)
Net income (loss)	$ (28,812)				(27,072)		(1,740)
Balance as of at Jun. 30, 2016	325,854	$ 47	$ (65,042)	3,570,053	(3,192,393)	(72)	13,261
Balance as of (in shares) at Jun. 30, 2016		46,505,000	(6,998,000)
Balance as of at Dec. 31, 2016	365,484	$ 47	$ (129,774)	3,578,204	(3,095,236)	99	12,144
Balance as of (in shares) at Dec. 31, 2016		46,523,000	(11,586,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Equity-based compensation expense related to stock appreciation rights (SARs) and stock options	20			20
Equity-based compensation related to deferred stock units (DSUs)	148			148
Equity-based compensation related to restricted stock (RS)	6,142			6,142
Issuance of RS, net of forfeitures primarily related to satisfying tax withholdings	(2,896)			(2,896)
Issuance of RS, net of forfeitures primarily related to satisfying tax withholdings (in shares)		(39,000)
Exercise of SARs and stock options, net of forfeitures related to satisfying tax withholdings	(1)			(1)
Impact of redeemable noncontrolling interests accretion	(69)			(69)
Impact of subsidiary equity transactions	1,264			1,429		(46)	(119)
Repurchase of common stock	$ (25,548)		$ (25,548)
Repurchase of common stock (in shares)	(1,825,531)		(1,826,000)
Net income (loss)	$ (17,514)				(16,533)		(981)
Balance as of at Jun. 30, 2017	$ 327,030	$ 47	$ (155,322)	$ 3,582,977	$ (3,111,769)	$ 53	$ 11,044
Balance as of (in shares) at Jun. 30, 2017		46,484,000	(13,412,000)

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended	114 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016	Jun. 30, 2017
OPERATING ACTIVITIES - Continuing Operations
Net income (loss)	$ (7,326)	$ (13,558)	$ (17,478)	$ (28,941)
Income (loss) from discontinued operations, net of tax	0	2,079	0	4,160
Adjustments to reconcile net loss to cash used in operating activities:
Depreciation and amortization			9,172	8,331
Equity-based compensation	3,852	3,750	7,617	8,407
Impairment related and other			312	394
Other (income) loss, net	(2,558)	15	(3,425)	105
Deferred tax asset			25	52
Contingent consideration			358	32
Changes in operating assets and liabilities - net of acquisitions:
Accounts receivable, net			971	(1,091)
Prepaid expenses and other assets			281	(1,857)
Accounts payable			364	(2)
Accrued expenses			(473)	(639)
Accrued compensation and benefits			(2,510)	(4,039)
Deferred revenue			1,639	4,633
Other liabilities			163	3,840
Cash flows provided by (used in) operating activities			(2,984)	(6,615)
INVESTING ACTIVITIES - Continuing Operations
Capital expenditures			(765)	(1,636)
Change in restricted cash			301	551
Proceeds from sales/distribution of ownership interests			3,652	46
Ownership acquisition, net of cash acquired			(515)	(2,222)
Cash flows provided by (used in) investing activities			2,673	(3,261)
FINANCING ACTIVITIES - Continuing Operations
Acquisition of noncontrolling interests in subsidiary equity			(112)	(5,578)
Payments of contingent consideration			0	1,464
Repayment of capital lease obligations			(8)	0
Purchase of treasury stock			(25,088)	(9,533)		$ (159,300)
Tax withholdings related to equity-based awards			(2,896)	(1,536)
Financing activities with discontinued operations, net			0	(2,004)
Cash flows provided by (used in) financing activities			(28,104)	(20,115)
Effect of exchange rate on cash and cash equivalents			(46)	(112)
Net increase (decrease) in cash and cash equivalents from continuing operations			(28,461)	(30,103)
Discontinued Operations
Cash flows provided by (used in) operating activities			0	(4,923)
Cash flows provided by (used in) investing activities			0	(447)
Cash flows provided by (used in) financing activities			0	2,384
Net increase (decrease) in cash and cash equivalents from discontinued operations			0	(2,986)
Cash and cash equivalents at beginning of period - discontinued operations			0	3,856	$ 3,856
Less: cash and cash equivalents at end of period - discontinued operations	0	870	0	870	0	0
Cash and cash equivalents at beginning of period			97,364	72,457	72,457
Cash and cash equivalents at end of period	$ 68,903	$ 42,354	$ 68,903	$ 42,354	$ 97,364	$ 68,903

The Company

The Company	6 Months Ended
	Jun. 30, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
The Company	The Company Description of the Company Actua Corporation (together with its subsidiaries, "Actua"), which was formed on March 4, 1996, is a multi-vertical cloud technology company with offerings that it believes create unique and compelling value for its customers and provide transformative efficiency to vertical markets worldwide. As of June 30, 2017 , Actua owned three businesses, each of which addresses the needs of a specific vertical market or industry: BOLT Solutions, Inc. ("Bolt"), FolioDynamics Holdings, Inc. ("FolioDynamix") and VelocityEHS Holdings, Inc. ("VelocityEHS"). Please refer to Item 1, "Business," in Actua’s Annual Report on Form 10-K for the year ended December 31, 2016 for a more detailed description of Actua and its businesses. Basis of Presentation On October 18, 2016, the sale of GovDelivery Holdings, Inc. ("GovDelivery") to affiliates of Vista Equity Partners ("Vista") (such transaction, the "GovDelivery Sale") was consummated. Accordingly, the financial results and financial position of GovDelivery are presented as discontinued operations in the Consolidated Financial Statements for all periods presented. The Consolidated Financial Statements contained herein (the "Consolidated Financial Statements") include the accounts of Actua Corporation and its wholly-owned and majority-owned subsidiaries.

Significant Accounting Policies

Significant Accounting Policies	6 Months Ended
	Jun. 30, 2017
Accounting Policies [Abstract]
Significant Accounting Policies	Significant Accounting Policies Principles of Accounting for Ownership Interests The various interests that Actua acquires in its businesses are accounted for under one of three methods: the consolidation method, the equity method or the cost method. The applicable accounting method is generally determined based on Actua’s voting interest in a company. Consolidation Method Businesses in which (1) Actua directly or indirectly owns more than 50% of the outstanding voting securities and (2) other stockholders do not possess the right to affect significant management decisions are generally accounted for under the consolidation method of accounting. Participation of other stockholders in the net assets and in the earnings or losses of a consolidated subsidiary is reflected in the line items "Noncontrolling interests" in Actua’s Consolidated Balance Sheets and "Net income (loss) attributable to the noncontrolling interests" in Actua’s Consolidated Statements of Operations and Comprehensive Income (Loss). Noncontrolling interests adjusts Actua’s consolidated results of operations to reflect only Actua’s share of the earnings or losses of the consolidated subsidiary. Any changes in Actua’s ownership interest in a consolidated subsidiary, whether through additional equity issuances (to Actua or otherwise) by the consolidated subsidiary or through Actua acquiring equity interests from existing shareholders, following which Actua maintains control, is recognized as an equity transaction, with appropriate adjustments to both Actua’s additional paid-in capital and the corresponding noncontrolling interests. The difference between the carrying amount of Actua’s ownership interest in the company and the underlying net book value of the company after the issuance of stock by the company is reflected as an equity transaction in Actua’s Consolidated Statements of Changes in Equity. An increase in Actua’s ownership interest in a business accounted for under the equity or cost method of accounting in which Actua obtains a controlling financial interest is accounted for as a step acquisition, with an allocation of the purchase price to the fair value of the net assets acquired. In addition, Actua remeasures its previously held ownership interest in a business that was previously not consolidated at the acquisition date fair value; any gain or loss resulting from such a remeasurement is recognized in Actua’s Consolidated Statements of Operations and Comprehensive Income (Loss) at the time of the remeasurement. Actua begins to include the financial position and operating results of a newly-consolidated subsidiary in its Consolidated Financial Statements from the date Actua obtains the controlling financial interest in that subsidiary. If control is lost, any retained interest is measured at fair value, and a gain or loss is recognized in Actua’s Consolidated Statements of Operations and Comprehensive Income (Loss) at that time. In addition, to the extent Actua maintains a smaller equity ownership, the accounting method used for that business is adjusted to the equity or cost method of accounting, as appropriate, for subsequent periods. Equity Method Businesses that are not consolidated, but over which Actua exercises significant influence, are accounted for under the equity method of accounting. The determination as to whether or not Actua exercises significant influence with respect to a company depends on an evaluation of several factors, including, among others, representation on the company’s board of directors and equity ownership level, which is generally between a 20% and a 50% interest in the voting securities of an equity method business, as well as voting rights associated with Actua’s holdings in common stock, preferred stock and other convertible instruments in that company. Actua did not own any equity method businesses during the first six months of 2017 or during the year ended December 31, 2016 . Cost Method Businesses not accounted for under either the consolidation method or equity method of accounting are accounted for under the cost method of accounting and are further discussed in Note 6 , " Cost Method Businesses ." Actua’s share of the earnings and/or losses of cost method businesses is not included in Actua’s Consolidated Statement of Operations and Comprehensive Income (Loss). However, impairment charges related to cost method businesses are recognized in Actua’s Consolidated Statement of Operations and Comprehensive Income (Loss). If circumstances suggest that the value of a cost method business with respect to which an impairment charge has been made has subsequently recovered, that recovery is not recorded. The carrying values of Actua’s cost method businesses are reflected in the line item "Cost method businesses" in Actua’s Consolidated Balance Sheets. Actua initially records its carrying value in businesses accounted for under the cost method at cost, unless the equity securities of a cost method business have readily determinable fair values based on quoted market prices, in which case the interests are valued at fair value and are classified as marketable securities or some other classification in accordance with guidance for ownership interests in debt and equity securities. Use of Estimates The preparation of financial statements in conformity with U.S. generally accepted accounting principles ("GAAP") requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Actual results could differ materially from those estimates. The estimates, which include evaluation of Actua’s debt and equity holdings in businesses, asset impairment, revenue recognition, income taxes, and commitments and contingencies, are based on management’s best judgments. Management evaluates its estimates and underlying assumptions on an ongoing basis, using historical experience and other factors, such as the current economic environment, that management believes to be reasonable under the circumstances and adjusts its estimates and assumptions when facts and circumstances dictate that it is necessary or appropriate to do so. It is reasonably possible that Actua’s accounting estimates with respect to the ultimate recoverability of Actua’s ownership interests in convertible debt, equity holdings, goodwill, and the useful lives of intangible assets could change in the near term and that the effect of such changes on Actua’s Consolidated Financial Statements could be material. As of June 30, 2017 and December 31, 2016, management believes the recorded amounts of goodwill, intangible assets and cost method businesses were not impaired. Cash and Cash Equivalents Actua considers all highly liquid instruments with an original maturity of three months or less at the time of purchase to be cash equivalents. Cash and cash equivalents at June 30, 2017 and December 31, 2016 were invested principally in money market accounts. Restricted Cash Actua considers cash that is legally restricted and cash that is held as a compensative balance for both operating leases and trust accounts, maintained and operated in conjunction with Actua’s insurance business, as restricted cash. Actua had long-term restricted cash of $0.3 million as of June 30, 2017 and $0.4 million as of December 31, 2016 that is included in the line item, "Other assets, net" in Actua’s Consolidated Balance Sheets. Goodwill Goodwill represents the excess of the purchase price over the fair value of the net assets of businesses acquired. Actua has made acquisitions over the years that have resulted in the recognition and accumulation of significant goodwill. Actua tests goodwill for impairment annually during the fourth quarter of each year, or more frequently as conditions warrant. The first step of the test used to identify potential impairment compares the estimated fair value of a reporting unit with its carrying amount, including goodwill. If the fair value of a reporting unit exceeds its carrying amount, goodwill of the reporting unit is not considered to be impaired and the second step of the impairment test is unnecessary. If the carrying amount of a reporting unit exceeds its fair value, the second step of the impairment test must be performed to measure the amount of the impairment loss, if any. The second step of the goodwill impairment test compares the implied fair value of the reporting unit goodwill with the carrying amount of that goodwill. The implied fair value of goodwill is determined in the same manner as goodwill recognized in a business combination. If the carrying amount of the reporting unit goodwill exceeds the implied fair value of that goodwill, an impairment loss is recognized in an amount equal to the excess. Actua estimates the fair value of its reporting units using "Level 2" and "Level 3" inputs, as described in Note 7 , " Fair Value Measurements ." Significant judgments and estimates are made to estimate the fair value of Actua’s reporting units, such as projected future earnings, applicable discount rates, the selection of peer earnings multiples and the relative weighting of different fair value indicators. Actua determines market multiples from comparable publicly-traded companies and applies those multiples to the revenue of the reporting units to estimate the fair values, which are then compared to the respective carrying values of the reporting units. Refer to Note 3 , " Goodwill and Intangible Assets ," for further details related to Actua’s December 31, 2016 annual impairment evaluation. Intangible Assets Intangible assets with determinable lives primarily consist of customer relationships, trademarks and trade names, technology, non-compete agreements and other intellectual property. The cost of intangible assets with determinable lives is amortized on a straight-line basis over the estimated period of economic benefit. Indefinite-lived intangibles are subject to impairment testing at least annually. In addition, intangible assets are tested more frequently if a change in circumstances or the occurrence of events indicates that potential impairment exists. Cost Method Businesses Actua evaluates its carrying value in cost method businesses continuously to determine whether an other-than-temporary decline in the fair value of any such business exists and should be recognized. In order to make that determination, Actua considers each such business' achievement of its business plan objectives and milestones, the fair value of Actua's ownership interest in each such business (which, in the case of any company listed on a public stock exchange, is the quoted stock price of the relevant ownership interest), the financial condition and prospects of each such business, and other relevant factors. The business plan objectives and milestones Actua considers include, among others, those related to financial performance, such as achievement of planned financial results or completion of capital raising activities, and those that are not primarily financial in nature, such as obtaining key business partnerships or the hiring of key employees. Impairment charges are determined by comparing Actua’s carrying value of its cost method investment in a business with the estimated fair value of the investment. Fair value is determined by using a combination of estimating the cash flows related to the relevant business, including estimated proceeds on disposition, and an analysis of market price multiples of companies engaged in lines of business similar to the business being evaluated. Financial Instruments Cash and cash equivalents, accounts receivable and accounts payable are carried at cost, which approximates fair value due to the short-term maturity of these instruments. Marketable securities are carried at fair value. Deferred Revenue Deferred revenue consists primarily of payments received in advance of revenue being earned under the relevant customer agreements. Contract Acquisition Costs Commission costs associated with the negotiation of a contract are charged to expense as incurred. Revenue Recognition Actua recognizes revenue when persuasive evidence of an arrangement exists, delivery of the service has occurred, no significant obligations with regard to implementation remain, the fee is fixed or determinable and collectability is probable. If a multiple deliverable arrangement is entered into, Actua evaluates each deliverable to determine whether that deliverable has standalone value. A delivered element has standalone value if the element has value to a customer on a standalone basis. This is typically determined by reference to whether an element is routinely sold independent of other offerings or a third-party vendor could provide a similar service to the customer. Additionally, whether or not there is a customer-negotiated refund or return right for the delivered element is considered in determining whether the delivered element has standalone value. If these criteria are not met, the deliverable is combined with the undelivered elements and the allocation of the consideration for the arrangement and the associated revenue recognition are determined for the combined elements and recognized over the applicable contract term. For any deliverables that are determined to have standalone value, Actua allocates the total revenue to be earned under the arrangement among the various deliverables based on a selling price hierarchy using the relative selling price method. Vendor specific objective evidence ("VSOE") of fair value is based on the normal pricing and discounting practices for those offerings when sold separately. Third-party evidence ("TPE") of fair value is determined by evaluating largely similar and interchangeable competitor offerings in standalone sales to similarly situated customers. Best estimated selling price ("ESP") is established by considering factors such as margin objectives, market conditions and competition. ESP represents the price at which the company would transact for the deliverable if it were sold by the company regularly on a standalone basis. The selling price for a deliverable is based on VSOE of fair value if it can be established; otherwise, the selling price is based on TPE of fair value (or ESP if TPE of fair value cannot be established). Actua’s businesses recognize professional fees provided to new customers, which primarily relate to implementation services, over the initial terms of the contracts if they are determined to not have standalone value. At the time that a contract with a new customer is consummated, there is no history with such customer, and it cannot be determined whether the relationship with such customers will extend beyond the terms of the initial contract. The following paragraphs provide more specific details regarding the manner in which each of our businesses recognizes revenue. Bolt Bolt generates revenue from (1) software as a service ("SaaS") software licenses, (2) maintenance and support services, (3) professional service fees, (4) insurance commissions, including contingency bonus revenues from insurance carriers, and (5) subscription fees. Bolt enters into certain multiple deliverable arrangements that relate primarily to its software licenses, which are delivered through a cloud-based model and include professional services necessary for the functionality of the software, as well as maintenance and support services. Under Bolt’s cloud-based software licenses, certain professional services are essential for the functionality of the software. Therefore, these professional services and the related maintenance and support services in these arrangements do not have standalone value to Bolt’s customers and are combined into a single unit of accounting. Revenue under these arrangements is recognized ratably over the applicable contract term. For Bolt’s professional services or other deliverables that are determined to have standalone value, Bolt allocates the total revenue to be earned under the arrangement for each deliverable based on the ESP, since Bolt has concluded that historically VSOE of fair value and TPE of fair value cannot be established. These fees are then recognized as the services are performed or delivered. Finally, certain professional services are sold separately. Those fees are recognized as the professional services are performed or delivered. Bolt’s commissions on the premiums from sales of insurance policies are recognized when Bolt has sufficient information to determine (1) the amount that it is owed and (2) whether it is probable that the economic benefits associated with the transaction will be realized by Bolt. Bolt recognizes subscription fee revenue over the subscription period, which is generally a one -month period. Bolt has typically represented a small amount of Actua’s historical deferred revenue balances. Bolt’s contracts are generally billed in annual, quarterly or monthly installments. FolioDynamix FolioDynamix generates revenues primarily in the form of (1) recurring software license and subscription fees, (2) maintenance and support services, (3) professional services fees from customization and integration services related to its software, (4) professional services fees for customized investment program management and consulting, and (5) investment advisory services. The initial subscription arrangement term is typically between three and five years. FolioDynamix’s platform revenue from term software license arrangements is recognized on a subscription basis over the customer contract license term of use. Revenue from annual maintenance is deferred and recognized on a straight-line basis over the period that the service is provided. Revenue related to platform implementation professional services is deferred and recognized on a straight-line basis over the contract term. FolioDynamix enters into multiple element arrangements with new customers that include both software subscription and professional implementation services. The professional services in these arrangements do not have standalone value as they are essential for the functionality of the software. Therefore, revenue under these arrangements are recognized ratably over the applicable contract term. Certain revenues earned by FolioDynamix for advisory services require judgment to determine whether the revenue should be recorded on a gross basis (that is, with FolioDynamix as a principal) or net of related costs (that is, with FolioDynamix as an agent). In general, these revenues are recognized on a net basis if FolioDynamix is not the primary obligor and is acting as an agent of the supplier. FolioDynamix represents $3.1 million of Actua's total deferred revenue balance of $38.5 million as of June 30, 2017 . FolioDynamix’s contracts are billed in annual, quarterly or monthly installments and are primarily non-cancellable. VelocityEHS VelocityEHS derives revenue from two sources: (1) SaaS subscription fees and (2) professional services fees. The initial subscription arrangement term is typically between one and three years. The vast majority of VelocityEHS’ revenue is derived from subscription fees from customers accessing VelocityEHS’ database and web-based tools; that revenue is recognized ratably over the applicable contract term, beginning with the subscription start date. VelocityEHS also generates professional service fees from (1) customer training, (2) authoring of safety data sheets for customers, and (3) compiling of customers’ online libraries of safety data sheet documents and indexing those documents. For new VelocityEHS customers, professional services are often included in the arrangement with the subscription fees. Under these arrangements, the professional fees are determined to have standalone value. VelocityEHS allocates the total revenue to be earned under the arrangement based on the ESP, as neither VSOE of fair value nor TPE of fair value can be established. ESP is determined by weighting the available evidence of selling prices which includes VelocityEHS’ pricing practices, contractual prices and pricing of standalone sales. These fees are then recognized as the services are performed. VelocityEHS has typically represented the majority of Actua’s historical deferred revenue balances. VelocityEHS’ contracts are generally billed annually and are non-cancellable. Equity-Based Compensation Actua recognizes equity-based compensation expenses in the Consolidated Financial Statements for all restricted stock awards and other equity-based arrangements that are expected to vest. Equity-based compensation expense is measured at the date of grant, based on the fair value of the award, and is recognized using the straight-line method over the employee’s requisite service period. Equity-based awards with vesting conditions other than service are recognized based on the probability that those conditions will be achieved. Employees have the ability to net settle their equity-based awards. Research and Development Research and development costs for software to be sold and marketed are charged to expense as those costs are incurred. Income Taxes Income taxes are accounted for under the asset and liability method, whereby deferred tax assets and liabilities are recognized for the estimated future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax basis and net operating loss and capital loss carryforwards. Deferred tax assets and liabilities are measured using enacted tax rates in effect for the year in which the temporary differences and net operating loss and capital loss carryforwards are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date. Actua records a valuation allowance to reduce its net deferred tax assets to the amount that is more likely than not to be realized. Actua considers future taxable income and prudent and feasible tax planning strategies in determining the need for a valuation allowance. In the event that Actua determines that it would not be able to realize all or part of its net deferred tax assets, an adjustment to the deferred tax assets would be charged to earnings in the period such determination is made. Likewise, if Actua later determines that it is more likely than not that the net deferred tax assets would be realized, the previously provided valuation allowance would be reversed. Net Income (Loss) Per Share Basic net income (loss) per share ("EPS") is computed using the weighted average number of common shares outstanding during a given period, exclusive of unvested restricted stock. Diluted EPS includes shares, unless anti-dilutive, that would be issued in connection with the exercise of stock options and conversion of other convertible securities and is adjusted, if applicable, for the effect on net income (loss) of such transactions. See Note 13 , " Net Income (Loss) Per Share ." Comprehensive Income (Loss) Actua reports and displays comprehensive income (loss) and its components in the Consolidated Statements of Operations and Comprehensive Income (Loss). Comprehensive income (loss) is the change in equity of a business enterprise during a period from non-owner sources. Actua’s sources of comprehensive income (loss) are net income (loss) and foreign currency translation adjustments. Reclassification adjustments result from the recognition of gains or losses in net income (loss) that were included in comprehensive income (loss) in prior periods. Supplemental Cash Flow Disclosures Actua did not pay any interest during the three and six months ended June 30, 2017 and 2016 . Actua made income tax payments of $0.4 million during each of the three and six months ended June 30, 2017 ; there were no tax payments for the equivalent periods of 2016. Fixed assets purchased during the three and six months ended June 30, 2017 but not yet paid for as of June 30, 2017 were less than $0.1 million . These amounts were $0.4 million and $1.0 million for the three and six months ended June 30, 2016 , respectively. Actua reports cash received from the sale of a discontinued operation as cash flows from continuing operations. Discontinued Operations On September 20, 2016, GovDelivery entered into a merger agreement providing for the sale of GovDelivery to Vista; the GovDelivery Sale was consummated on October 18, 2016. Because of this and other factors, Actua has recast all financial information within the Consolidated Financial Statements to conform to the current period presentation and to present GovDelivery as discontinued operations for all periods presented. Escrow Information When an interest in one of Actua’s businesses is sold, a portion of the proceeds may be held in escrow primarily to satisfy purchase price adjustments and/or indemnity claims. Actua records gains on escrowed proceeds at the time Actua is entitled to receive those proceeds from escrow, the amount is fixed or determinable and realization is assured. As of June 30, 2017 , $11.3 million related to Actua’s potential proceeds from sales of former businesses, particularly GovDelivery, remained in escrow to satisfy potential or unresolved indemnification claims. Those outstanding escrow amounts are scheduled to be released in the fourth quarter of 2017, subject to any pending and potential indemnity claims, if applicable, pursuant to the terms of the applicable acquisition agreements. Concentration of Customer Base and Credit Risk No single customer of Actua’s consolidated businesses represented more than 10% of Actua’s consolidated revenue for the three and six months ended each of June 30, 2017 and June 30, 2016 . Commitments and Contingencies From time to time, Actua and its businesses are involved in various claims and legal actions arising in the ordinary course of business. Actua does not expect any liability with respect to any legal claims or actions, either individually or in the aggregate, that would materially affect its consolidated financial position or cash flows. Recent Accounting Pronouncements In May 2014, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2014-09, Revenue from Contracts with Customers, which provides a single, comprehensive revenue recognition model for all contracts with customers. Under the new guidance, an entity will recognize revenue based on amounts the entity expects to be entitled to in exchange for the transfer of goods or services. The new standard also includes enhanced disclosure requirements. The standard, which will be applied either retrospectively or as a cumulative-effect adjustment as of the date of adoption, will be effective for Actua beginning on January 1, 2018. In March 2016, the FASB issued ASU 2016-08, Revenue from Contracts with Customers (Topic 606): Principal versus Agent Considerations (Reporting Revenue Gross versus Net) , to clarify the implementation guidance on principal versus agent considerations. In April 2016, the FASB issued ASU 2016-10, Revenue from Contracts with Customers: Identifying Performance Obligations and Licensing , which clarifies the identification of performance obligations and the licensing implementation guidance. In May 2016, the FASB issued ASU 2016-12, Revenue from Contracts with Customers (Topic 606): Narrow-Scope Improvements and Practical Expedients, which addresses collectability, sales and other taxes, noncash consideration, contract modifications at transition, completed contracts at transition and technical corrections. In December 2016, ASU 2016-20 Technical Corrections and Improvements to Topic 606, Revenue from Contracts with Customers, was issued by the FASB to clarify and correct unintended application of the new revenue recognition guidance. The effective dates for these ASUs are the same as the effective date for ASU 2014-09. Actua has conducted a high level assessment to evaluate the impact of the new revenue recognition guidance by performing an initial analysis of its material contracts. During 2017, Actua will continue its impact assessment by performing detailed reviews of all of its contracts to determine the overall impact of the new accounting guidance on its results of operations and whether it will need to adjust its accounting policies, systems and/or controls. The assessment is ongoing; however, Actua currently believes that one of the key components in the guidance that will impact Actua's Consolidated Financial Statements is the requirement to capitalize the costs incurred to acquire new contracts. Currently, Actua expenses all sales commissions as incurred. Actua does not plan on adopting the new standard early and has not yet selected a transition methodology. In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842) . Under the new guidance, most leases will be recognized on Actua’s Consolidated Balance Sheets as liabilities with corresponding right-of-use assets. The new standard is effective for Actua for the annual period beginning January 1, 2019, including interim periods ending on or after March 31, 2019, with early adoption permitted. The standard must be adopted using a modified retrospective approach. Actua is in the process of evaluating the impact of this new guidance. In November 2016, the FASB issued ASU 2016-18, Statement of Cash Flows (Topic 230): Restricted Cash. The new standard requires that the statement of cash flows explain the change during the period of both cash and cash equivalents as well as restricted cash balances. Therefore, restricted cash should be included within the cash and cash equivalents balance when reconciling the beginning and ending period amounts shown on the statement of cash flows. This ASU is effective for fiscal years beginning after December 31, 2017, and early adoption is permitted. The adoption of this standard will only impact the presentation of Actua's Statement of Cash Flows and will not have an impact on Actua's results of operations. Actua does not intend to early adopt this new standard. In January 2017, the FASB issued ASU 2017-01, Business Combinations (Topic 805): Clarifying the Definition of a Business. The new standard clarifies the definition of a business and whether an acquisition should be accounted for as an asset acquisition or a business acquisition. The new standard is effective for Actua for the annual period beginning January 1, 2018, including interim periods ending on or after March 31, 2018. The new standard is to be applied prospectively only, and no further disclosure is required once the new methodology is adopted and applied. In January 2017, the FASB issued ASU 2017-04, Intangibles - Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment. The new standard simplifies the subsequent measurement of goodwill by eliminating Step 2 for the goodwill impairment test. In doing so, Actua will no longer determine goodwill impairment by calculating the implied fair value of the goodwill by assigning the fair value of a reporting unit to its assets and liabilities. Instead, Actua will compare the fair value of a reporting unit against Actua's carrying value of that reporting unit and record impairment for the amount that the carrying value exceeds the fair value, limited by the amount of goodwill assigned to that reporting unit. Actua plans to adopt this standard during the year ending December 31, 2017. Recently Adopted Accounting Guidance In March 2016, the FASB issued ASU 2016-09, Compensation—Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting , which provides guidance involving several aspects of the accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities and classification on the statement of cash flows. Under ASU 2016-09, all excess tax benefits and tax deficiencies (including tax benefits of dividends on share-based payment awards) should be recognized as income tax expense or benefit in the statement of operations, whereas under prior GAAP, excess tax benefits were recognized in additional paid-in capital and tax deficiencies were recognized either as an offset to accumulated excess tax benefits, if any, or in the statement of operations. Under ASU 2016-09, excess tax benefits should be classified along with other income tax cash flows as an operating activity, as opposed to a financing activity under prior GAAP. Additionally

Goodwill and Intangible Assets

Goodwill and Intangible Assets	6 Months Ended
	Jun. 30, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets	Goodwill and Intangible Assets Goodwill The following table summarizes the activity related to Actua’s goodwill: (in thousands) Gross Carrying Amount Accumulated Impairment Losses Net Carrying Amount Goodwill as of December 31, 2016 $ 271,443 $ (39,656 ) $ 231,787 Acquisitions (1) (363 ) — (363 ) Goodwill as of June 30, 2017 $ 271,080 $ (39,656 ) $ 231,424 ________________ (1) Refer to Note 4 , " Consolidated Businesses ," for details of acquisitions. As of June 30, 2017 and December 31, 2016 , all of Actua’s goodwill was allocated to its vertical cloud segment. Impairment Actua completed its annual impairment testing in the fourth quarter of 2016, which resulted in no impairments related to Actua’s consolidated businesses because the fair value of the reporting units exceeded their carrying value for each of those reporting units, including goodwill. Intangible Assets The following table summarizes Actua’s intangible assets: (in thousands) As of June 30, 2017 Gross Carrying Accumulated Net Carrying Intangible Assets Useful Life Amount Amortization Amount Customer relationships (1) 3-11 years $ 65,486 $ (26,573 ) $ 38,913 Trademarks/trade names 3-11 years 22,904 (11,651 ) 11,253 Technology 5-9 years 26,322 (12,538 ) 13,784 Non-compete agreements 3-5 years 3,908 (3,596 ) 312 118,620 (54,358 ) 64,262 Other intellectual property (2) Indefinite 700 — 700 $ 119,320 $ (54,358 ) $ 64,962 (in thousands) As of December 31, 2016 Gross Carrying Accumulated Net Carrying Intangible Assets Useful Life Amount Amortization Amount Customer relationships 3-11 years $ 65,603 $ (21,783 ) $ 43,820 Trademarks/trade names 3-11 years 22,904 (10,043 ) 12,861 Technology 5-9 years 26,334 (10,675 ) 15,659 Non-compete agreements 3-5 years 3,915 (3,549 ) 366 118,756 (46,050 ) 72,706 Other intellectual property (2) Indefinite 700 — 700 $ 119,456 $ (46,050 ) $ 73,406 ____________________ (1) Included in the accumulated amortization line item is an impairment charge of $0.3 million recognized in the three and six months ended June 30, 2017. (2) Included in this line item is a domain name valued at $0.3 million that Actua currently believes has an indefinite life, and a domain name for which Actua estimated the residual value to approximate its carrying value of $0.4 million as of both June 30, 2017 and December 31, 2016 . Amortization expense for intangible assets during the three and six months ended June 30, 2017 was $4.3 million and $8.0 million , respectively. Amortization expense for intangible assets during the three and six months ended June 30, 2016 was $3.6 million and $7.2 million , respectively. The remaining estimated amortization expense for the respective years is set forth as follows: (in thousands) 2017 (remaining six months) $ 8,219 2018 12,348 2019 10,807 2020 9,367 2021 9,271 Thereafter 14,250 Remaining amortization expense $ 64,262

Consolidated Businesses

Consolidated Businesses	6 Months Ended
	Jun. 30, 2017
Business Combinations [Abstract]
Consolidated Businesses	Consolidated Businesses Acquisitions On January 22, 2016, VelocityEHS acquired certain assets of ErgoAdvocate LLC ("ErgoAdvocate") for $1.3 million of cash consideration, $1.0 million of which was paid at the closing of the transaction, and $0.3 million of which was paid during the six months ended June 30, 2017 . The acquisition was accounted for under the acquisition method. VelocityEHS has allocated the purchase price to the acquired identifiable intangible assets and goodwill based upon their respective fair values as of the date of acquisition. On September 16, 2016, VelocityEHS acquired certain assets of E3 Solutions Inc. ("E3 Solutions") for $3.0 million of cash consideration, $2.7 million of which was paid at the closing of the transaction, and $0.3 million of which will be paid in equal installments on the 12-month and 18-month anniversaries of the closing. The acquisition was accounted for under the acquisition method. VelocityEHS has allocated the purchase price to the acquired identifiable intangible assets and goodwill based upon their respective fair values as of the date of acquisition. On October 31, 2016, FolioDynamix acquired certain assets of SAS Capital Management, LLC ("SAS") for a maximum consideration of $25.0 million . The initial consideration paid, net of working capital, was approximately $2.9 million . Aggregate payments of approximately $1.0 million are payable over the 15-month period following the closing for a total fixed consideration of $3.9 million . The SAS acquisition is subject to an earnout based on the achievement of specified revenue targets that was valued at $7.9 million at the date of acquisition. The acquisition was accounted for under the acquisition method. FolioDynamix has allocated the purchase price to identifiable tangible and intangible assets, goodwill and deferred revenue. The purchase accounting for the SAS acquisition was finalized during the three months ended June 30, 2017 . The allocations of the respective ErgoAdvocate, E3 Solutions and SAS purchase prices to identified intangible assets and tangible assets and liabilities were as follows: (in thousands) ErgoAdvocate E3 Solutions SAS Goodwill $ 155 $ 1,074 $ 9,736 Customer lists (5-11 year life) 26 28 2,153 Trademarks, trade names and domain names (5-11 year life) — 6 — Technology (7-9 year life) 1,069 1,822 344 Non-compete agreement (5 year life) — 70 233 Deferred revenue — — (320 ) Other net assets (liabilities) — — (397 ) Total net assets acquired $ 1,250 $ 3,000 $ 11,749 Redeemable Noncontrolling Interests In connection with GovDelivery's acquisitions of NuCivic, Inc. ("NuCivic") and Textizen, Inc. ("Textizen"), certain GovDelivery stockholders had the ability to require GovDelivery to redeem a portion of their shares in 2017, 2018, 2019 and 2020 based on a fair value determination. In connection with the GovDelivery Sale, the vesting of the redeemable shares related to the NuCivic and Textizen acquisitions was accelerated, and the shares were cashed out for a portion of the sale consideration. Certain VelocityEHS stockholders have the ability to require VelocityEHS to redeem a portion of their shares in 2017 based on a mutually agreed upon fair value determination. Certain FolioDynamix shareholders have the ability to require FolioDynamix to redeem a portion of their shares in 2018, 2019 and/or 2020 based on a mutually agreed upon fair value determination. Because any such redemptions would be outside the control of the respective businesses, Actua has classified the noncontrolling interests outside of equity and will accrete to the estimated redemption values with an offset to additional paid-in capital. The noncontrolling interests are classified as "Redeemable noncontrolling interests" in Actua’s Consolidated Balance Sheets. The following is a reconciliation of the activity related to Actua’s redeemable noncontrolling interests during the six months ended June 30, 2017 and 2016 : (in thousands) Balance at December 31, 2015 $ 10,506 Redeemable noncontrolling interests portion of subsidiary net income (loss) (129 ) Accretion to estimated redemption value 1,232 Equity transfer among owners (1) (5,247 ) Balance at June 30, 2016 $ 6,362 Balance at December 31, 2016 $ 5,858 Redeemable noncontrolling interests portion of subsidiary net income (loss) 36 Accretion to estimated redemption value 33 Balance at June 30, 2017 $ 5,927 ____________________________ (1) This amount primarily relates to cash payments made during the three months ended March 31, 2016 of $5.4 million to acquire (a) $2.5 million of redeemable noncontrolling interests associated with GovDelivery, (b) $2.4 million of redeemable noncontrolling interests associated with VelocityEHS and (c) $0.5 million of redeemable noncontrolling interests associated with FolioDynamix. These transactions increased Actua’s ownership in GovDelivery from 92% to 94% and its ownership in VelocityEHS from 98% to 99% . Actua's ownership in FolioDynamix did not significantly change from the repurchase. Other Consolidated Businesses Transactions From time to time, Actua acquires additional equity ownership interests in its consolidated businesses. Purchasing equity ownership interests from a consolidated business’s existing shareholders results in an increase in Actua’s controlling interest in that business and a corresponding decrease in the noncontrolling interests ownership. Those transactions are accounted for as decreases to "Noncontrolling interests" and increases to "Additional paid-in capital" in Actua’s Consolidated Balance Sheets for the relevant periods. Actua may also acquire additional equity ownership interests in its consolidated businesses as a result of share issuances by one or more of those businesses, and Actua’s equity ownership interests may be diluted by any such share issuances to other parties. An issuance of equity securities by a consolidated business that results in a decrease in Actua’s equity ownership interests is accounted for in accordance with the policy for "Principles of Accounting for Ownership Interests" described in Note 2 , " Significant Accounting Policies ." Other changes to Actua’s equity ownership interests in its consolidated businesses, as well as equity-based compensation award activity at those businesses, also result in adjustments to the line items "Additional paid-in capital" and "Noncontrolling interests" in Actua’s Consolidated Balance Sheets. The impact of any equity-related transactions at Actua’s consolidated businesses is included in the line item "Impact of subsidiary equity transactions" in Actua’s Consolidated Statements of Changes in Equity. During the six months ended June 30, 2016 , the line item "Impact of subsidiary equity transactions" in Actua’s Consolidated Statements of Changes in Equity was $1.5 million , which was comprised of $5.4 million paid by Actua in order to repurchase shares in its consolidated businesses offset by $3.9 million relating to Actua’s share of its consolidated businesses' equity transactions. Actua did not repurchase any shares of its consolidated businesses during the six months ended June 30, 2017 ; therefore, the balance of $1.4 million in the line item "Impact of subsidiary equity transactions" in Actua’s Consolidated Statements of Changes in Equity relates entirely to Actua’s share of its consolidated businesses' equity transactions. Pro Forma Information (Unaudited) The information in the following table represents the revenue, net income (loss) attributable to Actua and net income (loss) per diluted share attributable to Actua for the relevant period had it owned E3 Solutions and SAS during that period. (in thousands, except per share data) Three Months Ended June 30, 2016 Six Months Ended June 30, 2016 Revenue $ 28,013 $ 54,734 Net income (loss) attributable to Actua Corporation $ (10,773 ) $ (23,143 ) Net income (loss) per diluted share attributable to Actua Corporation $ (0.29 ) $ (0.62 )

Discontinued Operations

Discontinued Operations	6 Months Ended
	Jun. 30, 2017
Discontinued Operations and Disposal Groups [Abstract]
Discontinued Operations	Discontinued Operations On October 18, 2016, the sale of GovDelivery to Vista was consummated for $153.0 million in cash, subject to certain adjustments for working capital, cash, debt and other items. Actua realized approximately $133.0 million in cash, of which approximately $10.0 million is being held in escrow and is subject to potential indemnification claims. Actua recorded a gain of $124.8 million related to the transaction during the fourth quarter of 2016. The results of Actua's discontinued GovDelivery operations, which are presented on the line item "Income (loss) from discontinued operations, net of tax" in Actua’s Consolidated Statements of Operations and Comprehensive Income (Loss) is summarized below: (in thousands) Major classes of line items constituting pretax loss of discontinued operations Three Months Ended June 30, 2016 Six Months Ended June 30, 2016 Revenue $ 9,855 $ 19,279 Cost of revenue (3,552 ) (7,022 ) Selling, general, administrative and other operating expenses (8,283 ) (16,218 ) Other non-major income and expense items (90 ) (169 ) Total discontinued operations before income taxes (2,070 ) (4,130 ) Income tax benefit (expense) (9 ) (30 ) Total discontinued operations, net of income taxes (2,079 ) (4,160 ) Less: discontinued operations attributable to noncontrolling interests (101 ) (211 ) Discontinued operations attributable to Actua Corporation $ (1,978 ) $ (3,949 )

Cost Method Businesses

Cost Method Businesses	6 Months Ended
	Jun. 30, 2017
Investments, All Other Investments [Abstract]
Cost Method Businesses	Cost Method Businesses Actua’s carrying value of its holdings in cost method businesses was $17.5 million as of June 30, 2017 and $17.3 million as of December 31, 2016 , as reflected in the line item "Cost method businesses" in Actua’s Consolidated Balance Sheets as of the relevant dates. The change in Actua's carrying value during the three and six months ended June 30, 2017 was mainly due to an increase in its interest in Parchment Inc. ("Parchment"), a cost method business. Impairments Actua performs ongoing business reviews of its cost method businesses to determine whether Actua’s carrying value in those businesses is impaired. Actua determined its carrying value in its cost method businesses was not impaired during the six months ended June 30, 2017 or the year ended December 31, 2016 .

Fair Value Measurements

Fair Value Measurements	6 Months Ended
	Jun. 30, 2017
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements Fair value is the price that would be received from selling an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. There are three levels of inputs that may be used to measure fair value, which are as follows: • Level 1 – Observable inputs, such as quoted market prices for identical assets and liabilities in active public markets. • Level 2 – Observable inputs other than Level 1 prices based on quoted prices in markets with insufficient volume or infrequent transactions, or valuations in which all significant inputs are observable for substantially the full term of the asset or liability. • Level 3 – Unobservable inputs to the valuation techniques that are significant to the fair value of the asset or liability. Assets and liabilities are measured at fair value based on one or more of the following three valuation techniques: • Market approach – Fair value is determined based on prices and other relevant information generated by market transactions involving identical or comparable assets and liabilities. • Income approach – Fair value is determined by converting relevant future amounts to a single present amount based on market expectations (including present value techniques and option pricing models). • Cost approach – Fair value represents the amount that currently would be required to replace the service capacity of the relevant asset (often referred to as replacement cost). The fair value hierarchy of Actua’s financial assets and liabilities measured at fair value on a recurring basis were as follows: (in thousands) Valuation Technique Asset (Liability) (Approach) Level 1 Level 2 Level 3 June 30, 2017 Cash equivalents (money market accounts) $ 60,280 Market $ 60,280 $ — $ — Acquisition contingent consideration obligations (8,610 ) Income — — (8,610 ) $ 51,670 $ 60,280 $ — $ (8,610 ) Valuation Technique Asset (Liability) (Approach) Level 1 Level 2 Level 3 December 31, 2016 Cash equivalents (money market accounts) $ 89,220 Market $ 89,220 $ — $ — Acquisition contingent consideration obligations (8,752 ) Income — — (8,752 ) $ 80,468 $ 89,220 $ — $ (8,752 ) The carrying value of certain of Actua’s other financial instruments, including accounts receivable and accounts payable, approximates fair value due to the short-term nature of those instruments. As of June 30, 2017 and December 31, 2016 , Actua accounted for a contingent earn-out payment related to FolioDynamix’s acquisition of SAS (the "SAS Earnout"), which was a component of the purchase price for SAS. A fair value of the SAS Earnout was determined on the date of acquisition using Monte Carlo simulation models that yielded a value of $7.9 million . The ultimate obligation could range in value up to $20.4 million . The fair value of the SAS Earnout as of June 30, 2017 was determined to be $8.6 million , based upon the update of models, Actua's calculations and/or qualitative analysis. Changes in the fair value of the SAS Earnout were reflected in the "Impairment related and other" line item on Actua's Consolidated Statements of Operations and Comprehensive Income (Loss).

Debt

Debt	6 Months Ended
	Jun. 30, 2017
Debt Disclosure [Abstract]
Debt	Debt On August 9, 2013, as part of a round of debt financing led by Actua, Bolt entered into certain loan agreements with one of its minority shareholders that exercised its preemptive rights, Neurone II Investments G.P., Ltd. ("Neurone"). Those agreements provided for a term loan of $0.5 million , subject to an interest rate of 8.0% and a maturity date of August 9, 2015 . Since the loan matured on August 9, 2015, it has become payable on demand and interest continues to accrue at 8.0% interest. The principal amount on the loan, which is convertible into shares of preferred stock in Bolt, has a fair value of $0.5 million as of both June 30, 2017 and December 31, 2016 . As of both June 30, 2017 and December 31, 2016 , $0.5 million is outstanding under the term loan and is included in the line item "Short-term debt" in Actua’s Consolidated Balance Sheets. On January 1, 2015, as part of a round of debt financing led by Actua, Bolt entered into certain additional loan agreements with Neurone that provided for a term loan of $0.8 million , which is subject to an interest rate of 8.0% and a maturity date of May 1, 2016 and is now payable on demand. The loan, which is convertible into shares of Bolt’s preferred stock, has a fair value of $0.8 million as of June 30, 2017 . As of both June 30, 2017 and December 31, 2016 , $0.8 million is outstanding under the term loan and is included in the line item "Short-term debt" in Actua’s Consolidated Balance Sheets.

Treasury Stock

Treasury Stock	6 Months Ended
	Jun. 30, 2017
Equity [Abstract]
Treasury Stock	Treasury Stock Actua has been authorized by its Board of Directors (the "Board"), pursuant to a share repurchase program to repurchase, from time to time, shares of Common Stock in open market transactions, including pursuant to trading plans meeting the requirements of Rule 10b5-1 under the Exchange Act, in privately negotiated transactions or pursuant to one or more issuer tender offers. The program was adopted in 2008 and expanded in 2013 to allow for the repurchase of up to $150.0 million of shares of Actua's Common Stock. During the year ended December 31, 2016, the program was further expanded to allow for an additional $39.8 million of repurchases, increasing the total repurchase amount to $189.8 million , of which $30.5 million is available as of the date of this Report. During the three and six months ended June 30, 2017 , Actua repurchased 929,744 shares and 1,825,531 shares of its Common Stock, respectively. During the six months ended June 30, 2017, Actua paid $25.1 million at an average stock price of $13.95 per share and accrued $0.5 million for the share repurchases not yet settled. During the three and six months ended June 30, 2016 , Actua repurchased 540,000 shares and 1,010,000 shares of its Common Stock, respectively. During the six months ended June 30, 2016 , Actua paid $9.5 million at an average stock price of $9.41 per share for these repurchases. From commencement of the program through the date of this Report, Actua has deployed a total of $159.3 million to repurchase a total of 13,761,211 shares of Common Stock for an average purchase price of $11.58 per share. Repurchases are reflected in the line item "Treasury stock, at cost" as a reduction of stockholders’ equity in Actua’s Consolidated Balance Sheets in the relevant period.

Equity-Based Compensation

Equity-Based Compensation	6 Months Ended
	Jun. 30, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Equity-Based Compensation	Equity-Based Compensation Equity-based compensation awards may be granted to Actua employees, directors and consultants and certain employees of its consolidated businesses under Actua’s 2005 Omnibus Equity Compensation Plan (as amended from time to time, the "Plan"). Generally, the awards vest over a period from one to four years or based on the achievement of performance-based or market-based conditions, and expire eight or ten years after the grant date. Most businesses in which Actua holds equity ownership interests also maintain their own equity incentive compensation plans. As of June 30, 2017 , Actua had 2,057,145 shares of Common Stock reserved under the Plan for possible future issuance. Actua may issue the following types of equity-based compensation to its employees and non-employee directors: (1) restricted stock and restricted stock units (which may be subject to performance-based or market-based conditions), (2) stock appreciation rights ("SARs"), (3) stock options and (4) deferred stock units ("DSUs"). Actua’s grants of equity-based compensation are approved by the Board or the Compensation Committee of the Board. Equity-based compensation is included in operating expenses, primarily in the line item "General and administrative" in Actua’s Consolidated Statements of Operations and Comprehensive Income (Loss). The following table summarizes the equity-based compensation recognized by expense line item on Actua’s Consolidated Statements of Operations and Comprehensive Income (Loss): (in thousands) Three Months Ended June 30, Six Months Ended June 30, 2017 2016 2017 2016 Cost of revenue $ 35 $ 22 $ 137 $ 54 Sales and marketing 100 72 192 160 General and administrative 3,552 3,554 7,041 7,977 Research and development 165 102 247 216 Total equity-based compensation $ 3,852 $ 3,750 $ 7,617 $ 8,407 Equity-based compensation by equity award type: (in thousands) Three Months Ended June 30, Six Months Ended June 30, 2017 2016 2017 2016 Restricted stock $ 3,081 $ 3,092 $ 6,142 $ 7,017 SARs 10 50 20 108 DSUs 74 94 148 193 3,165 3,236 6,310 7,318 Equity-based compensation for consolidated businesses 687 514 1,307 1,089 Total equity-based compensation $ 3,852 $ 3,750 $ 7,617 $ 8,407 Unrecognized equity-based compensation by equity award type: (in thousands, except weighted average years) As of June 30, Weighted Average Years Remaining of Equity-Based Compensation as of 2017 2016 June 30, 2017 Restricted stock $ 8,541 $ 16,096 0.87 SARs 98 137 2.82 DSUs 282 578 0.95 8,921 16,811 Equity-based compensation for consolidated businesses 6,189 5,537 2.67 Total equity-based compensation $ 15,110 $ 22,348 Restricted Stock Actua periodically issues shares of restricted stock to its employees, employees of its consolidated businesses and its non-management directors. Recipients of restricted stock do not pay any cash consideration for the shares and have the right to vote all shares subject to the grant. Any cash dividends paid by Actua in respect of unvested restricted stock would be paid to the holders of outstanding restricted stock at the same time as cash dividends are paid to common stockholders. Any dividends paid by Actua in stock or other property in respect of unvested restricted stock would be paid to the holders of outstanding unvested restricted stock subject to the same terms and conditions related to vesting, forfeiture and non-transferability as the underlying stock. Share activity with respect to restricted stock awards for the three and six months ended June 30, 2017 and 2016 was as follows: Number of Shares Weighted Average Grant Date Fair Value Per Share Issued and unvested as of December 31, 2015 3,480,828 $ 16.51 Granted 434,283 $ 8.44 Vested (657,317 ) $ 18.75 Forfeited (588,819 ) $ 10.69 Issued and unvested as of March 31, 2016 2,668,975 $ 15.93 Granted 112,397 $ 9.33 Vested (81,391 ) $ 13.33 Forfeited (7,500 ) $ 8.44 Issued and unvested as of June 30, 2016 2,692,481 $ 15.73 Number of Shares Weighted Average Grant Date Fair Value Per Share Issued and unvested as of December 31, 2016 2,644,030 $ 14.15 Granted 286,256 $ 13.85 Vested (625,646 ) $ 15.30 Forfeited (167,712 ) $ 8.44 Issued and unvested as of March 31, 2017 2,136,928 $ 14.22 Granted 54,310 $ 13.95 Vested (81,897 ) $ 9.66 Issued and unvested as of June 30, 2017 2,109,341 $ 14.39 The total aggregate fair value of restricted stock awards that vested and were converted into Actua’s Common Stock during the three and six months ended June 30, 2017 and 2016 was as follows: (in thousands) 2017 2016 Three months ended March 31, $ 8,548 $ 5,243 Three months ended June 30, 1,145 776 Six months ended June 30, $ 9,693 $ 6,019 The following shares were surrendered by Actua's employees to satisfy their obligations for withholding taxes: 2017 2016 Three months ended March 31, 211,560 191,898 Three months ended June 30, 736 736 Six months ended June 30, 212,296 192,634 As of June 30, 2017 , issued and unvested shares of restricted stock granted to Actua’s employees and directors vest as follows: Number of Shares Unvested Vesting Conditions 1,335,700 Subject to certain market conditions, as discussed below 263,756 Subject to certain performance conditions, as discussed below 509,885 Subject to certain service conditions, as discussed below 2,109,341 Restricted Stock – Awards with Market Conditions Actua has issued restricted stock awards with market-based vesting conditions to its employees and certain employees of its consolidated businesses, the vesting of which is contingent upon achievement of specified price targets of Actua’s Common Stock. The equity-based compensation expense for awards with market-based vesting conditions is recorded based on the fair value of the awards, which is determined using a Monte Carlo simulation model at the time the award is granted. For the majority of the market-based awards that are outstanding as of June 30, 2017 , the derived service period over which the expense is to be recognized is also determined by the Monte Carlo simulation model. In the event that the market-based conditions are not achieved and the related restricted stock awards are forfeited, equity-based compensation expense would not be reversed; if an employee terminates service with Actua prior to vesting of a market-based vesting, any compensation expense associated with the unvested award would be reversed. During 2011, a total of 366,666 shares of restricted stock with market-based conditions were granted to Actua’s Chief Executive Officer and its President. The market-based conditions were not achieved and the relevant shares of restricted stock lapsed unvested in the first quarter of 2016. In February 2014, a total of 1,277,500 shares of restricted stock with market-based conditions were granted to certain of Actua’s employees, including Actua’s executive officers, and certain executives of Actua’s consolidated businesses. The vesting of those shares is contingent upon the 45 -trading day volume-weighted average price per share ("VWAP") of Actua’s Common Stock meeting or exceeding specified 45 -trading day VWAP targets ( $28.07 , $30.16 , $32.38 and $34.71 ) (the "2014 VWAP Targets") on or before February 28, 2018, with 25% of the shares vesting upon achievement of each of the targets. Through the quarter ended June 30, 2017 , 20,000 shares related to this award have been forfeited. In the event that any of the 2014 VWAP Targets are not achieved, the relevant shares of restricted stock will lapse unvested. There are various other restricted stock awards that have been issued, the vesting of which are contingent upon the 45 -trading day VWAP of Actua’s Common Stock meeting or exceeding the 2014 VWAP Targets on or before February 28, 2018, and such awards remain unvested as of June 30, 2017 . These issuances total 90,800 shares awarded, of which 12,600 shares have been forfeited through the quarter ended June 30, 2017 . In aggregate, and inclusive of any amounts noted in the paragraphs of this subsection, compensation expense related to awards with market conditions was less than $0.1 million for both the three and six months ended June 30, 2017 and less than $0.1 million and $0.8 million for the equivalent periods of 2016 , respectively. Unamortized compensation expense is nominal and will be fully amortized in 2017 . Restricted Stock – Awards with Performance Conditions Actua also grants restricted stock awards with performance-based vesting conditions to its employees and certain employees of its consolidated businesses, the vesting of which is contingent upon the achievement of specified financial goals. The equity-based compensation expense for awards with performance-based vesting conditions is recorded based on the fair value of the awards, determined by the closing price of Actua’s Common Stock on the date of grant. Actua assesses the probability of the achievement of any performance conditions and adjusts the related equity compensation expense accordingly. In the event that the performance-based conditions are not achieved and the related restricted stock awards are forfeited, equity-based compensation expense related to those awards would be reversed. For the years ended or ending December 31, 2015, 2016 and 2017, senior Actua employees, including each of Actua's executive officers, were issued a certain number of shares of restricted stock in lieu of the right to receive up to a certain percentage of their respective target bonuses (ranging from 100% to 150% ) in cash. The number of shares of restricted stock issued to each senior Actua employee was determined by reference to the closing price of Actua's Common Stock on the date of issue and the dollar amount of the target bonus potentially payable in Actua Common Stock. The number of each employee's restricted shares that vested or that could vest in 2015, 2016 or 2017 is based on each employee's achievement percentage under the relevant performance plan. All expense related to the grant of restricted shares in connection with Actua's performance plans is recorded in the year of issuance; however, the vesting of such restricted shares occurs in the first quarter of the following year. The table below summarizes the grant and vesting of performance plan-related restricted stock grants for each of 2015, 2016 and 2017. Percentage of Target Bonus Potentially Payable in Restricted Stock ACTA Stock Price at Issuance Restricted Shares Granted Performance Plan Achievement Percentage Restricted Shares Vested Restricted Shares Forfeited Actua 2015 Performance Plan 150 % $ 16.76 316,715 83 % 175,249 141,466 Actua 2016 Performance Plan 100 % $ 8.44 419,283 60 % 251,570 167,713 Actua 2017 Performance Plan 100 % $ 13.85 263,756 * * * * To be determined in the first quarter of 2018. In aggregate, and inclusive of any amounts noted in the paragraphs of this subsection, compensation expense related to performance-based awards was $0.9 million and $1.8 million for the three and six months ended June 30, 2017 and $0.9 million and $1.9 million for the equivalent periods of 2016 , respectively. Unamortized compensation expense of $1.8 million will be amortized over the six months remaining in 2017 . Restricted Stock – Awards with Service Conditions Actua grants restricted stock awards to its employees, its directors and certain employees of its consolidated businesses that vest over a period of time of employee or director service. The equity-based compensation expense for those time-based awards is recorded based on the fair value of the awards, determined by the ending price of Actua’s Common Stock on the date of grant. In the event that an individual terminates service with Actua (or its consolidated businesses) prior to the vesting of a time-based award, the related restricted stock awards are forfeited and equity-based compensation expense related to any forfeited award is reversed. In February 2014, 1,377,500 shares of restricted stock were granted to certain of Actua’s employees, including Actua’s executive officers, and certain executives of Actua’s consolidated businesses. Those awards vest in equal increments each year for four years on the anniversary of the grant date. Accordingly, 344,375 and 339,375 shares of restricted stock vested during the first quarter of 2016 and 2017, respectively. During the year ended December 31, 2016, 10,000 shares related to this award were forfeited. The unamortized equity-based compensation expense as of June 30, 2017 related to those time-based awards was $4.6 million ; this amount will be recognized as follows: $3.4 million in the remaining six months of 2017 and $1.2 million in 2018 . In June 2015, 140,416 shares of restricted stock were granted to Actua's non-management directors in accordance with Actua’s Second Amended and Restated Non-Management Director Compensation Plan, as such has been and may be amended from time to time (the "Amended Director Plan") that took effect January 1, 2015. Through the quarter ended June 30, 2017 , 109,902 shares have vested and 514 shares have been forfeited; the remaining 30,000 shares vest in equal quarterly increments from September 2017 through June 2018. See "Non-Management Director Equity-Based Compensation - The Amended Director Plan" in this Note 10 for additional details regarding equity-based compensation awarded to Actua’s Board. In June 2016, 72,397 shares of restricted stock with a grant date fair value of $9.02 were granted to Actua's non-management directors in accordance with the Amended Director Plan. These shares vested on the one -year anniversary of the grant date. See "Non-Management Director Equity-Based Compensation - The Amended Director Plan" in this Note 10 for additional details regarding equity-based compensation awarded to Actua’s Board. In June 2017, 54,310 shares of restricted stock with a grant date fair value of $13.95 were granted to Actua's non-management directors in accordance with the Amended Director Plan. These shares will vest on the one -year anniversary of the grant date. See "Non-Management Director Equity-Based Compensation - The Amended Director Plan" in this Note 10 for additional details regarding equity-based compensation awarded to Actua’s Board. There are various other restricted stock awards that were issued in the current and previous years to Actua employees, which vest according to specified service criteria and remain unvested as of June 30, 2017 . Those awards include 86,200 shares of restricted stock from multiple grants, which vest on various dates through 2021. In aggregate, and inclusive of any amounts noted in the foregoing paragraphs of this subsection, compensation expense related to awards with service conditions was $2.2 million and $4.3 million for the three and six months ended June 30, 2017 , respectively, and $2.2 million and $4.4 million for the corresponding periods of 2016 , respectively. Unamortized compensation expense of $6.7 million will be amortized as follows: $4.4 million during the six months remaining in 2017 , and $2.3 million during the years 2018 through 2021. SARs Each SAR represents the right of the holder to receive, upon exercise of that SAR, shares of Actua Common Stock equal to the amount by which the fair market value of a share of that Common Stock on the date of exercise of the SAR exceeds the base price of the SAR. The base price is determined by the NASDAQ closing price of Actua’s Common Stock on the date of grant (or the closing price on the next trading day if there are no trades in Actua’s Common Stock on the date of grant). The fair value of each SAR is estimated on the grant date using the Black-Scholes option-pricing model. SARs generally vest over four years, with 25% vesting on the first anniversary of the grant date, and the remaining 75% vesting ratably each month over the subsequent 36 months . The activity with respect to SARs for the six -month periods ended June 30, 2017 and 2016 was as follows: Number of SARs Weighted Average Base Price Weighted Average Outstanding as of December 31, 2015 479,656 $ 10.64 $ 5.80 Activity for the three months ended March 31, 2016 — $ — $ — Outstanding as of March 31, 2016 479,656 $ 10.64 $ 5.80 Granted 25,000 $ 9.04 $ 4.80 Outstanding as of June 30, 2016 504,656 $ 10.56 $ 5.75 Number of SARs Weighted Average Base Price Weighted Average Outstanding as of December 31, 2016 307,514 $ 11.28 $ 6.21 Exercised (1) (939 ) $ 9.98 $ 5.33 Outstanding as of March 31, 2017 306,575 $ 11.28 $ 6.21 Activity for the three months ended June 30, 2017 — $ — $ — Outstanding as of June 30, 2017 306,575 $ 11.28 $ 6.21 (1) The exercise of SARs listed above resulted in the issuance of the following shares of Actua's Common Stock: 2017 2016 Three months ended March 31, 171 — Three months ended June 30, — — Six months ended June 30, 171 — The following table summarizes information about SARs outstanding as of June 30, 2017 : Grant price Number of SARs Outstanding Number of SARs Exercisable Weighted Average Remaining Contractual Life of SARs Outstanding (in years) Aggregate Intrinsic Value of SARs Outstanding as of June 30, 2017 (in thousands) $6.70 - $8.76 29,950 29,950 1.23 $ 169 $9.02 - $9.25 43,625 24,875 7.25 215 $11.69 - $17.31 233,000 232,269 3.77 475 306,575 287,094 $ 859 As of June 30, 2017 and 2016 , there were 287,094 and 477,791 SARs exercisable, respectively, at a weighted average base price of $11.42 per share and $10.61 per share, respectively, under the Plan. As of June 30, 2017 , Actua expects an additional 19,481 SARs to vest in the future. The aggregate intrinsic value of the SARs outstanding as of June 30, 2017 and June 30, 2016 was $0.9 million and $0.1 million , respectively. Stock Options The fair value of each stock option is estimated on the grant date using the Black-Scholes option-pricing model. Stock options generally vest over four years as follows: 25% vest on the first anniversary of the grant date, and the remaining 75% vest ratably each month over the subsequent 36 months . There was no activity with respect to stock options during the three and six months ended June 30, 2017 and 2016 . There were 250 stock options outstanding as of both June 30, 2017 and 2016 ; the aggregate intrinsic value of the stock options outstanding as of both June 30, 2017 and 2016 was de minimis. SARs and Stock Options Fair Value Assumptions Actua estimates the grant date fair value of SARs and stock options using the Black-Scholes option-pricing model, which requires the input of highly subjective assumptions. Those assumptions include estimating the expected life of the award and estimating the volatility of Actua’s stock price over the expected term. Expected volatility approximates the historical volatility of Actua’s Common Stock over the period, commensurate with the expected term of the award. Actua has sufficient historical data to calculate an expected term for SARs and stock options granted in the future. The risk-free interest rate is based on the U.S. Treasury yield in effect at the time of grant for an instrument with a maturity that is commensurate with the expected term of the award. Changes in the above assumptions, the estimated forfeitures and/or the requisite service period can materially affect the amount of equity-based compensation recognized in Actua’s Consolidated Statements of Operations and Comprehensive Income (Loss). There were no SARs or stock options granted to Actua employees during the six months ended June 30, 2017 and 2016 . Non-Management Director Equity-Based Compensation Actua has periodically issued DSUs and/or shares of restricted stock to its non-management directors in accordance with the Director Plan and the Amended Director Plan. Each DSU represents a share of Actua's Common Stock into which that DSU will be converted upon the termination of the recipient’s service at Actua. Non-Management Director Equity-Based Compensation – The Amended Director Plan Pursuant to the Amended Director Plan, the compensation of Actua’s non-management directors was modified as follows for 2015: (1) the form of director retainer fee payments changed from quarterly cash payments to annual director restricted stock grants (with restricted stock with a six -month vesting period being granted in January 2015 and, thereafter, annual grants being made in connection with Actua’s annual meetings of stockholders), and (2) the number and frequency of non-management director service grant DSUs/shares of director restricted stock changed from 7,500 annually to 22,500 triennially (with 7,500 DSUs/shares of director restricted stock vesting on the one -year anniversary of the grant date, and the remaining 15,000 DSUs/shares of director restricted stock vesting in equal quarterly installments over the following two years ). The annual grants of shares of director restricted stock that replaced the quarterly cash retainer fees (a) are made at the board meeting immediately following the annual meeting of stockholders, (b) are equal in value to the total amount of annual retainer fees that were previously payable for the year (based on the NASDAQ closing price of Actua’s Common Stock on the grant date), (c) vest on the one -year anniversary of the grant date and (d) are not subject to a director option to receive DSUs in lieu of the shares. In June 2015, 50,416 shares of restricted stock with a grant date fair value of $13.17 per share were granted to Actua’s non-management directors (as discussed previously in this Note 10 ), representing the director retainer fee for the period from the June 12, 2015 grant date through June 12, 2016; those awards vested in June 2016. In June 2015, 90,000 shares of restricted stock and 90,000 DSUs (both with a grant date fair value of $13.17 per share) were granted to Actua’s non-management directors, representing the directors’ triennial service awards. Through the quarter ended June 30, 2017 , 60,000 shares of restricted stock and 52,500 DSUs vested, and 15,000 DSUs were forfeited in connection with a director's retirement. The remaining 30,000 shares of restricted stock and 22,500 DSUs are scheduled to vest in equal quarterly installments from September 2017 through June 2018. The following table summarizes the activity related to DSUs for the quarters ended June 30, 2017 and 2016 : Number of shares Weighted Issued and unvested as of December 31, 2015 90,000 $ 13.17 Activity for the three months ended March 31, 2016 — $ — Issued and unvested as of March 31, 2016 90,000 $ 13.17 Vested (30,000 ) $ 13.17 Forfeited (15,000 ) $ 13.17 Issued and unvested as of June 30, 2016 45,000 $ 13.17 Number of shares Weighted Issued and unvested as of December 31, 2016 33,750 $ 13.17 Vested (5,625 ) $ 13.17 Issued and unvested as of March 31, 2017 28,125 $ 13.17 Vested (5,625 ) $ 13.17 Issued and unvested as of June 30, 2017 22,500 $ 13.17 Expense associated with DSUs was $0.1 million for both the three and six months ended June 30, 2017 , and $0.1 million and $0.2 million for the three and six months ended June 30, 2016 , respectively. Consolidated Businesses All of Actua’s consolidated businesses issue equity-based compensation awards to their employees. Those awards are most often in the form of stock options for the respective businesses’ stock that vest over four years. The fair value of the stock option awards is estimated on the grant date using the Black-Scholes option pricing model. The majority of the stock options vest 25% on the first anniversary of the grant date, with the remaining 75% vesting ratably each month over the subsequent 36 months . The other awards generally vest ratably over four years, with 25% vesting on each anniversary date over that term. In conjunction with Actua’s acquisition of FolioDynamix, stock options with a total fair value of $5.1 million were granted to certain of FolioDynamix’s employees. The majority of those stock options vest as follows: 25% vested in November 2015, and the remaining 75% vest ratably each month through November 2018. The remaining stock options vest upon the achievement of certain performance or market conditions, as well as service conditions; to the extent that the performance or market conditions are not achieved, those stock options will lapse unvested. The expense associated with those awards is being recognized over the relative vesting periods. That expense is included in the line item "Equity-based compensation for consolidated businesses" in the equity-based compensation table at the beginning of this Note 10. The following assumptions were used to determine the fair value of stock options granted by Actua's consolidated businesses to their employees during the six -month periods ended June 30, 2017 and 2016 . Due to insufficient historical data, Actua's consolidated businesses used the simplified method to determine the expected life of all stock options granted under the respective equity incentive plans. Six Months Ended June 30, 2017 2016 Expected volatility 50% 45% - 50% Average expected life of stock options (in years) 6.25 5.93 - 6.25 Risk-free interest rate 2.07% 1.42% - 1.49% Dividend yield — —

Other Income (Loss), Net

Other Income (Loss), Net	6 Months Ended
	Jun. 30, 2017
Other Income and Expenses [Abstract]
Other Income (Loss), Net	Other Income (Loss), Net Other income (loss), net, consists of the effect of transactions and other events relating to Actua’s ownership interests and its operations in general, and is comprised of the following: (in thousands) Three Months Ended June 30, Six Months Ended June 30, 2017 2016 2017 2016 Gain (loss) on sales/distributions of ownership interests $ 2,697 $ — $ 3,654 $ 46 Other (1) (139 ) (15 ) (229 ) (151 ) Total other income (loss), net $ 2,558 $ (15 ) $ 3,425 $ (105 ) ____________________________ (1) This amount relates primarily to currency gain (loss) which is attributable to Actua's consolidated businesses. During the three and six months ended June 30, 2017 , Actua received distributions in cash and stock related to its partnership investment in Anthem Venture Partners ("Anthem"), a cost method business that resulted in total proceeds of $2.7 million and $3.7 million , respectively. Actua had no remaining basis in Anthem; therefore, a gain was recognized in those amounts for the respective periods.

Income Taxes

Income Taxes	6 Months Ended
	Jun. 30, 2017
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes Actua Corporation, FolioDynamix and VelocityEHS file a consolidated federal income tax return. Bolt is not included in Actua’s consolidated federal income tax return. For the six months ended June 30, 2017 and 2016 , a tax provision was recognized for state and foreign income taxes; no tax benefit for the loss from continuing operations was recognized, since Actua maintains a full valuation allowance against its federal net deferred tax assets that it believes, after evaluating all the positive and negative evidence, both historical and prospective, is more likely than not to not be realized.

Net Income (Loss) Per Share

Net Income (Loss) Per Share	6 Months Ended
	Jun. 30, 2017
Earnings Per Share [Abstract]
Net Income (Loss) Per Share	Net Income (Loss) Per Share The calculations of net loss per share were as follows: (in thousands, except per share data) Three Months Ended June 30, Six Months Ended June 30, 2017 2016 2017 2016 Basic and Diluted: Net income (loss) from continuing operations $ (6,863 ) $ (10,763 ) $ (16,533 ) $ (23,123 ) Net income (loss) from discontinued operations — (1,978 ) — (3,949 ) Net income (loss) attributable to Actua Corporation $ (6,863 ) $ (12,741 ) $ (16,533 ) $ (27,072 ) Basic and Diluted: Net income (loss) from continuing operations per share $ (0.22 ) $ (0.30 ) $ (0.52 ) $ (0.62 ) Net income (loss) from discontinued operations per share — (0.05 ) — (0.11 ) Net income (loss) attributable to Actua Corporation per share $ (0.22 ) $ (0.35 ) $ (0.52 ) $ (0.73 ) Shares used in computation of basic and diluted income (loss) per share 31,267 36,760 31,687 37,027 The following potentially dilutive securities were not included in the computation of diluted net loss per share, as their effect would have been anti-dilutive: Units (in thousands) Weighted Average Price per Share Three Months Ended June 30, 2017 SARs 307 $ 11.28 Restricted stock (1) 2,109 $ — DSUs 23 $ — Six Months Ended June 30, 2017 SARs 307 $ 11.28 Restricted stock (1) 2,109 $ — DSUs 23 $ — Three Months Ended June 30, 2016 SARs 505 $ 10.56 Restricted stock (1) 2,692 $ — DSUs 45 $ — Six Months Ended June 30, 2016 SARs 505 $ 10.56 Restricted stock (1) 2,692 $ — DSUs 45 $ — ___________________________ (1) Anti-dilutive securities include contingently issuable shares unvested as of June 30, 2017 and 2016 , the vesting of which is based on service conditions, performance conditions and market conditions that have not yet been achieved. See Note 10 , " Equity-Based Compensation ."

Segment Information

Segment Information	6 Months Ended
	Jun. 30, 2017
Segment Reporting [Abstract]
Segment Information	Segment Information The results of operations of our businesses are reported in two segments: the "vertical cloud" reporting segment and the "vertical cloud (venture)" reporting segment. The vertical cloud reporting segment reflects the aggregate financial results of Actua’s businesses (1) that share economic and other characteristics, (2) in which Actua’s management takes a very active role in providing strategic direction and operational support, and (3) towards which Actua devotes relatively large proportions of its personnel, financial capital and other resources. Actua owns majority controlling equity positions in (and therefore consolidates the financial results of) the three businesses in the vertical cloud segment: Bolt, FolioDynamix and VelocityEHS. The vertical cloud (venture) reporting segment includes businesses with many characteristics similar to those of the businesses in the vertical cloud segment, but in which Actua takes a less active role in terms of strategic direction and operational support, and, accordingly, towards which Actua devotes relatively small amounts of personnel, financial capital and other resources. During the three and six months ended June 30, 2017 , approximately $1.3 million and $2.6 million of Actua's consolidated revenue relates to sales generated outside of the United States, primarily Europe and Canada. During the three and six months ended June 30, 2016 , approximately $1.1 million and $2.0 million of Actua’s consolidated revenue relates to sales generated outside of the United States, primarily Europe and Canada. As of June 30, 2017 and December 31, 2016 , Actua’s assets were located primarily in the United States. The following tables summarize selected information related to Actua’s segments. The amounts presented as "Dispositions" in the following tables reflect the effects of the GovDelivery Sale for all periods presented. For more information, see Note 5 , " Discontinued Operations ." (in thousands) Reconciling Items Vertical Cloud Vertical Cloud (Venture) Total Segment Dispositions Other (1) Consolidated Three Months Ended June 30, 2017 Revenue $ 31,189 $ — $ 31,189 $ — $ — $ 31,189 Net income (loss) attributable to Actua Corporation $ (4,004 ) $ — $ (4,004 ) $ — $ (2,859 ) $ (6,863 ) Three Months Ended June 30, 2016 Revenue $ 26,854 $ — $ 26,854 $ — $ — $ 26,854 Net income (loss) attributable to Actua Corporation $ (5,647 ) $ — $ (5,647 ) $ (1,978 ) $ (5,116 ) $ (12,741 ) Six Months Ended June 30, 2017 Revenue $ 61,696 $ — $ 61,696 $ — $ — $ 61,696 Net income (loss) attributable to Actua Corporation $ (8,108 ) $ — $ (8,108 ) $ — $ (8,425 ) $ (16,533 ) Six Months Ended June 30, 2016 Revenue $ 52,040 $ — $ 52,040 $ — $ — $ 52,040 Net income (loss) attributable to Actua Corporation $ (12,087 ) $ — $ (12,087 ) $ (3,949 ) $ (11,036 ) $ (27,072 ) ________________ (1) The following table reflects the components of "Net income (loss) attributable to Actua Corporation" included within the "Other" category : (in thousands) Three Months Ended June 30, Six Months Ended June 30, Selected Data: 2017 2016 2017 2016 General and administrative expense $ (6,147 ) $ (5,818 ) $ (13,298 ) $ (12,763 ) Impairment related and other expense — (45 ) — (45 ) Other income (loss), net (refer to Note 11) 2,697 — 3,654 46 Interest income 128 31 274 68 Net (income) loss attributable to the noncontrolling interest 463 716 945 1,658 Net income (loss) $ (2,859 ) $ (5,116 ) $ (8,425 ) $ (11,036 ) (in thousands) Vertical Cloud Vertical Cloud (Venture) Total Segment Dispositions Other Consolidated Results Assets as of: June 30, 2017 $ 350,231 $ 17,473 $ 367,704 $ — $ 46,935 $ 414,639 December 31, 2016 $ 358,522 $ 17,250 $ 375,772 $ — $ 77,946 $ 453,718

Contingencies

Contingencies	6 Months Ended
	Jun. 30, 2017
Commitments and Contingencies Disclosure [Abstract]
Contingencies	Contingencies Actua has recorded contingent consideration of $8.6 million as of June 30, 2017 related to the SAS Earnout resulting from FolioDynamix's acquisition of SAS on October 31, 2016. See Note 4 , " Consolidated Businesses ." During 2008 and 2009, two carried interest plans ( one in each year) were established, for which a carried interest of 15.0% is allocable to Actua’s management participants in each plan. Carried interest will be paid in connection with a liquidity event or income receipt at any of the businesses in which the carried interest plans hold debt or equity interests (primarily Bolt), subject to an aggregate specified hurdle threshold and hold back and claw back criteria. Actua has allocated approximately $76.6 million to date with respect to these plans, and there were no cash deployments related to these plans in 2016 or during the three and six months ended June 30, 2017 . Actua’s ownership in Bolt acquired prior to 2015 is held in the 2009 carried interest plan, and the activity over the past few years relative to the 2009 carried interest plan primarily relates to cash deployment from Actua to achieve its objectives of increasing its ownership in, and supporting the cash needs of, Bolt. Beginning in 2015, any cash deployed to Bolt in the form of debt or equity financing has not been included in the carried interest plans. Other than the stake in Bolt held by the 2009 carried interest plan, the assets held by the carried interest plans are immaterial to Actua. As of June 30, 2017 , Actua does not expect a liquidity event or income receipt at any of the relevant businesses that would trigger a payment under either of the carried interest plans to occur in the near future, and, accordingly, Actua has not recorded a liability with respect to these plans. Once a liquidity event or income receipt at any of the relevant businesses that would yield proceeds in excess of the calculated hurdle rate occurs, and a payment becomes probable and estimable, Actua would record the applicable liability. Payments against that liability would occur thereafter, subject to relevant hold backs and clawbacks. As of June 30, 2017 , there were no distributions over the aggregate specified hurdle thresholds, and none are expected in the foreseeable future.

Significant Accounting Polici22

Significant Accounting Policies (Policies)	6 Months Ended
	Jun. 30, 2017
Accounting Policies [Abstract]
Principles of Accounting for Ownership Interests	Principles of Accounting for Ownership Interests The various interests that Actua acquires in its businesses are accounted for under one of three methods: the consolidation method, the equity method or the cost method. The applicable accounting method is generally determined based on Actua’s voting interest in a company.
Consolidation Method	Consolidation Method Businesses in which (1) Actua directly or indirectly owns more than 50% of the outstanding voting securities and (2) other stockholders do not possess the right to affect significant management decisions are generally accounted for under the consolidation method of accounting. Participation of other stockholders in the net assets and in the earnings or losses of a consolidated subsidiary is reflected in the line items "Noncontrolling interests" in Actua’s Consolidated Balance Sheets and "Net income (loss) attributable to the noncontrolling interests" in Actua’s Consolidated Statements of Operations and Comprehensive Income (Loss). Noncontrolling interests adjusts Actua’s consolidated results of operations to reflect only Actua’s share of the earnings or losses of the consolidated subsidiary. Any changes in Actua’s ownership interest in a consolidated subsidiary, whether through additional equity issuances (to Actua or otherwise) by the consolidated subsidiary or through Actua acquiring equity interests from existing shareholders, following which Actua maintains control, is recognized as an equity transaction, with appropriate adjustments to both Actua’s additional paid-in capital and the corresponding noncontrolling interests. The difference between the carrying amount of Actua’s ownership interest in the company and the underlying net book value of the company after the issuance of stock by the company is reflected as an equity transaction in Actua’s Consolidated Statements of Changes in Equity. An increase in Actua’s ownership interest in a business accounted for under the equity or cost method of accounting in which Actua obtains a controlling financial interest is accounted for as a step acquisition, with an allocation of the purchase price to the fair value of the net assets acquired. In addition, Actua remeasures its previously held ownership interest in a business that was previously not consolidated at the acquisition date fair value; any gain or loss resulting from such a remeasurement is recognized in Actua’s Consolidated Statements of Operations and Comprehensive Income (Loss) at the time of the remeasurement. Actua begins to include the financial position and operating results of a newly-consolidated subsidiary in its Consolidated Financial Statements from the date Actua obtains the controlling financial interest in that subsidiary. If control is lost, any retained interest is measured at fair value, and a gain or loss is recognized in Actua’s Consolidated Statements of Operations and Comprehensive Income (Loss) at that time. In addition, to the extent Actua maintains a smaller equity ownership, the accounting method used for that business is adjusted to the equity or cost method of accounting, as appropriate, for subsequent periods.
Equity Method	Equity Method Businesses that are not consolidated, but over which Actua exercises significant influence, are accounted for under the equity method of accounting. The determination as to whether or not Actua exercises significant influence with respect to a company depends on an evaluation of several factors, including, among others, representation on the company’s board of directors and equity ownership level, which is generally between a 20% and a 50% interest in the voting securities of an equity method business, as well as voting rights associated with Actua’s holdings in common stock, preferred stock and other convertible instruments in that company.
Cost Method	Cost Method Businesses not accounted for under either the consolidation method or equity method of accounting are accounted for under the cost method of accounting and are further discussed in Note 6 , " Cost Method Businesses ." Actua’s share of the earnings and/or losses of cost method businesses is not included in Actua’s Consolidated Statement of Operations and Comprehensive Income (Loss). However, impairment charges related to cost method businesses are recognized in Actua’s Consolidated Statement of Operations and Comprehensive Income (Loss). If circumstances suggest that the value of a cost method business with respect to which an impairment charge has been made has subsequently recovered, that recovery is not recorded. The carrying values of Actua’s cost method businesses are reflected in the line item "Cost method businesses" in Actua’s Consolidated Balance Sheets. Actua initially records its carrying value in businesses accounted for under the cost method at cost, unless the equity securities of a cost method business have readily determinable fair values based on quoted market prices, in which case the interests are valued at fair value and are classified as marketable securities or some other classification in accordance with guidance for ownership interests in debt and equity securities.
Use of Estimates	Use of Estimates The preparation of financial statements in conformity with U.S. generally accepted accounting principles ("GAAP") requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Actual results could differ materially from those estimates. The estimates, which include evaluation of Actua’s debt and equity holdings in businesses, asset impairment, revenue recognition, income taxes, and commitments and contingencies, are based on management’s best judgments. Management evaluates its estimates and underlying assumptions on an ongoing basis, using historical experience and other factors, such as the current economic environment, that management believes to be reasonable under the circumstances and adjusts its estimates and assumptions when facts and circumstances dictate that it is necessary or appropriate to do so. It is reasonably possible that Actua’s accounting estimates with respect to the ultimate recoverability of Actua’s ownership interests in convertible debt, equity holdings, goodwill, and the useful lives of intangible assets could change in the near term and that the effect of such changes on Actua’s Consolidated Financial Statements could be material. As of June 30, 2017 and December 31, 2016, management believes the recorded amounts of goodwill, intangible assets and cost method businesses were not impaired.
Cash and Cash Equivalents	Cash and Cash Equivalents Actua considers all highly liquid instruments with an original maturity of three months or less at the time of purchase to be cash equivalents.
Restricted Cash	Restricted Cash Actua considers cash that is legally restricted and cash that is held as a compensative balance for both operating leases and trust accounts, maintained and operated in conjunction with Actua’s insurance business, as restricted cash.
Goodwill, Intangible Assets, and Cost Method Businesses	Goodwill Goodwill represents the excess of the purchase price over the fair value of the net assets of businesses acquired. Actua has made acquisitions over the years that have resulted in the recognition and accumulation of significant goodwill. Actua tests goodwill for impairment annually during the fourth quarter of each year, or more frequently as conditions warrant. The first step of the test used to identify potential impairment compares the estimated fair value of a reporting unit with its carrying amount, including goodwill. If the fair value of a reporting unit exceeds its carrying amount, goodwill of the reporting unit is not considered to be impaired and the second step of the impairment test is unnecessary. If the carrying amount of a reporting unit exceeds its fair value, the second step of the impairment test must be performed to measure the amount of the impairment loss, if any. The second step of the goodwill impairment test compares the implied fair value of the reporting unit goodwill with the carrying amount of that goodwill. The implied fair value of goodwill is determined in the same manner as goodwill recognized in a business combination. If the carrying amount of the reporting unit goodwill exceeds the implied fair value of that goodwill, an impairment loss is recognized in an amount equal to the excess. Actua estimates the fair value of its reporting units using "Level 2" and "Level 3" inputs, as described in Note 7 , " Fair Value Measurements ." Significant judgments and estimates are made to estimate the fair value of Actua’s reporting units, such as projected future earnings, applicable discount rates, the selection of peer earnings multiples and the relative weighting of different fair value indicators. Actua determines market multiples from comparable publicly-traded companies and applies those multiples to the revenue of the reporting units to estimate the fair values, which are then compared to the respective carrying values of the reporting units. Refer to Note 3 , " Goodwill and Intangible Assets ," for further details related to Actua’s December 31, 2016 annual impairment evaluation. Intangible Assets Intangible assets with determinable lives primarily consist of customer relationships, trademarks and trade names, technology, non-compete agreements and other intellectual property. The cost of intangible assets with determinable lives is amortized on a straight-line basis over the estimated period of economic benefit. Indefinite-lived intangibles are subject to impairment testing at least annually. In addition, intangible assets are tested more frequently if a change in circumstances or the occurrence of events indicates that potential impairment exists. Cost Method Businesses Actua evaluates its carrying value in cost method businesses continuously to determine whether an other-than-temporary decline in the fair value of any such business exists and should be recognized. In order to make that determination, Actua considers each such business' achievement of its business plan objectives and milestones, the fair value of Actua's ownership interest in each such business (which, in the case of any company listed on a public stock exchange, is the quoted stock price of the relevant ownership interest), the financial condition and prospects of each such business, and other relevant factors. The business plan objectives and milestones Actua considers include, among others, those related to financial performance, such as achievement of planned financial results or completion of capital raising activities, and those that are not primarily financial in nature, such as obtaining key business partnerships or the hiring of key employees. Impairment charges are determined by comparing Actua’s carrying value of its cost method investment in a business with the estimated fair value of the investment. Fair value is determined by using a combination of estimating the cash flows related to the relevant business, including estimated proceeds on disposition, and an analysis of market price multiples of companies engaged in lines of business similar to the business being evaluated.
Financial Instruments	Financial Instruments Cash and cash equivalents, accounts receivable and accounts payable are carried at cost, which approximates fair value due to the short-term maturity of these instruments. Marketable securities are carried at fair value.
Deferred Revenue	Deferred Revenue Deferred revenue consists primarily of payments received in advance of revenue being earned under the relevant customer agreements.
Contract Acquisition Costs	Contract Acquisition Costs Commission costs associated with the negotiation of a contract are charged to expense as incurred.
Revenue Recognition	Revenue Recognition Actua recognizes revenue when persuasive evidence of an arrangement exists, delivery of the service has occurred, no significant obligations with regard to implementation remain, the fee is fixed or determinable and collectability is probable. If a multiple deliverable arrangement is entered into, Actua evaluates each deliverable to determine whether that deliverable has standalone value. A delivered element has standalone value if the element has value to a customer on a standalone basis. This is typically determined by reference to whether an element is routinely sold independent of other offerings or a third-party vendor could provide a similar service to the customer. Additionally, whether or not there is a customer-negotiated refund or return right for the delivered element is considered in determining whether the delivered element has standalone value. If these criteria are not met, the deliverable is combined with the undelivered elements and the allocation of the consideration for the arrangement and the associated revenue recognition are determined for the combined elements and recognized over the applicable contract term. For any deliverables that are determined to have standalone value, Actua allocates the total revenue to be earned under the arrangement among the various deliverables based on a selling price hierarchy using the relative selling price method. Vendor specific objective evidence ("VSOE") of fair value is based on the normal pricing and discounting practices for those offerings when sold separately. Third-party evidence ("TPE") of fair value is determined by evaluating largely similar and interchangeable competitor offerings in standalone sales to similarly situated customers. Best estimated selling price ("ESP") is established by considering factors such as margin objectives, market conditions and competition. ESP represents the price at which the company would transact for the deliverable if it were sold by the company regularly on a standalone basis. The selling price for a deliverable is based on VSOE of fair value if it can be established; otherwise, the selling price is based on TPE of fair value (or ESP if TPE of fair value cannot be established). Actua’s businesses recognize professional fees provided to new customers, which primarily relate to implementation services, over the initial terms of the contracts if they are determined to not have standalone value. At the time that a contract with a new customer is consummated, there is no history with such customer, and it cannot be determined whether the relationship with such customers will extend beyond the terms of the initial contract. The following paragraphs provide more specific details regarding the manner in which each of our businesses recognizes revenue. Bolt Bolt generates revenue from (1) software as a service ("SaaS") software licenses, (2) maintenance and support services, (3) professional service fees, (4) insurance commissions, including contingency bonus revenues from insurance carriers, and (5) subscription fees. Bolt enters into certain multiple deliverable arrangements that relate primarily to its software licenses, which are delivered through a cloud-based model and include professional services necessary for the functionality of the software, as well as maintenance and support services. Under Bolt’s cloud-based software licenses, certain professional services are essential for the functionality of the software. Therefore, these professional services and the related maintenance and support services in these arrangements do not have standalone value to Bolt’s customers and are combined into a single unit of accounting. Revenue under these arrangements is recognized ratably over the applicable contract term. For Bolt’s professional services or other deliverables that are determined to have standalone value, Bolt allocates the total revenue to be earned under the arrangement for each deliverable based on the ESP, since Bolt has concluded that historically VSOE of fair value and TPE of fair value cannot be established. These fees are then recognized as the services are performed or delivered. Finally, certain professional services are sold separately. Those fees are recognized as the professional services are performed or delivered. Bolt’s commissions on the premiums from sales of insurance policies are recognized when Bolt has sufficient information to determine (1) the amount that it is owed and (2) whether it is probable that the economic benefits associated with the transaction will be realized by Bolt. Bolt recognizes subscription fee revenue over the subscription period, which is generally a one -month period. Bolt has typically represented a small amount of Actua’s historical deferred revenue balances. Bolt’s contracts are generally billed in annual, quarterly or monthly installments. FolioDynamix FolioDynamix generates revenues primarily in the form of (1) recurring software license and subscription fees, (2) maintenance and support services, (3) professional services fees from customization and integration services related to its software, (4) professional services fees for customized investment program management and consulting, and (5) investment advisory services. The initial subscription arrangement term is typically between three and five years. FolioDynamix’s platform revenue from term software license arrangements is recognized on a subscription basis over the customer contract license term of use. Revenue from annual maintenance is deferred and recognized on a straight-line basis over the period that the service is provided. Revenue related to platform implementation professional services is deferred and recognized on a straight-line basis over the contract term. FolioDynamix enters into multiple element arrangements with new customers that include both software subscription and professional implementation services. The professional services in these arrangements do not have standalone value as they are essential for the functionality of the software. Therefore, revenue under these arrangements are recognized ratably over the applicable contract term. Certain revenues earned by FolioDynamix for advisory services require judgment to determine whether the revenue should be recorded on a gross basis (that is, with FolioDynamix as a principal) or net of related costs (that is, with FolioDynamix as an agent). In general, these revenues are recognized on a net basis if FolioDynamix is not the primary obligor and is acting as an agent of the supplier. FolioDynamix represents $3.1 million of Actua's total deferred revenue balance of $38.5 million as of June 30, 2017 . FolioDynamix’s contracts are billed in annual, quarterly or monthly installments and are primarily non-cancellable. VelocityEHS VelocityEHS derives revenue from two sources: (1) SaaS subscription fees and (2) professional services fees. The initial subscription arrangement term is typically between one and three years. The vast majority of VelocityEHS’ revenue is derived from subscription fees from customers accessing VelocityEHS’ database and web-based tools; that revenue is recognized ratably over the applicable contract term, beginning with the subscription start date. VelocityEHS also generates professional service fees from (1) customer training, (2) authoring of safety data sheets for customers, and (3) compiling of customers’ online libraries of safety data sheet documents and indexing those documents. For new VelocityEHS customers, professional services are often included in the arrangement with the subscription fees. Under these arrangements, the professional fees are determined to have standalone value. VelocityEHS allocates the total revenue to be earned under the arrangement based on the ESP, as neither VSOE of fair value nor TPE of fair value can be established. ESP is determined by weighting the available evidence of selling prices which includes VelocityEHS’ pricing practices, contractual prices and pricing of standalone sales. These fees are then recognized as the services are performed. VelocityEHS has typically represented the majority of Actua’s historical deferred revenue balances. VelocityEHS’ contracts are generally billed annually and are non-cancellable.
Equity-Based Compensation	Equity-Based Compensation Actua recognizes equity-based compensation expenses in the Consolidated Financial Statements for all restricted stock awards and other equity-based arrangements that are expected to vest. Equity-based compensation expense is measured at the date of grant, based on the fair value of the award, and is recognized using the straight-line method over the employee’s requisite service period. Equity-based awards with vesting conditions other than service are recognized based on the probability that those conditions will be achieved. Employees have the ability to net settle their equity-based awards.
Research and Development	Research and Development Research and development costs for software to be sold and marketed are charged to expense as those costs are incurred.
Income Taxes	Income Taxes Income taxes are accounted for under the asset and liability method, whereby deferred tax assets and liabilities are recognized for the estimated future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax basis and net operating loss and capital loss carryforwards. Deferred tax assets and liabilities are measured using enacted tax rates in effect for the year in which the temporary differences and net operating loss and capital loss carryforwards are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date. Actua records a valuation allowance to reduce its net deferred tax assets to the amount that is more likely than not to be realized. Actua considers future taxable income and prudent and feasible tax planning strategies in determining the need for a valuation allowance. In the event that Actua determines that it would not be able to realize all or part of its net deferred tax assets, an adjustment to the deferred tax assets would be charged to earnings in the period such determination is made. Likewise, if Actua later determines that it is more likely than not that the net deferred tax assets would be realized, the previously provided valuation allowance would be reversed.
Net Income (Loss) Per Share	Net Income (Loss) Per Share Basic net income (loss) per share ("EPS") is computed using the weighted average number of common shares outstanding during a given period, exclusive of unvested restricted stock. Diluted EPS includes shares, unless anti-dilutive, that would be issued in connection with the exercise of stock options and conversion of other convertible securities and is adjusted, if applicable, for the effect on net income (loss) of such transactions. See Note 13 , " Net Income (Loss) Per Share ."
Comprehensive Income (Loss)	Comprehensive Income (Loss) Actua reports and displays comprehensive income (loss) and its components in the Consolidated Statements of Operations and Comprehensive Income (Loss). Comprehensive income (loss) is the change in equity of a business enterprise during a period from non-owner sources. Actua’s sources of comprehensive income (loss) are net income (loss) and foreign currency translation adjustments. Reclassification adjustments result from the recognition of gains or losses in net income (loss) that were included in comprehensive income (loss) in prior periods.
Discontinued Operations	Discontinued Operations On September 20, 2016, GovDelivery entered into a merger agreement providing for the sale of GovDelivery to Vista; the GovDelivery Sale was consummated on October 18, 2016. Because of this and other factors, Actua has recast all financial information within the Consolidated Financial Statements to conform to the current period presentation and to present GovDelivery as discontinued operations for all periods presented.
Escrow Information	Escrow Information When an interest in one of Actua’s businesses is sold, a portion of the proceeds may be held in escrow primarily to satisfy purchase price adjustments and/or indemnity claims. Actua records gains on escrowed proceeds at the time Actua is entitled to receive those proceeds from escrow, the amount is fixed or determinable and realization is assured. As of June 30, 2017 , $11.3 million related to Actua’s potential proceeds from sales of former businesses, particularly GovDelivery, remained in escrow to satisfy potential or unresolved indemnification claims. Those outstanding escrow amounts are scheduled to be released in the fourth quarter of 2017, subject to any pending and potential indemnity claims, if applicable, pursuant to the terms of the applicable acquisition agreements.
Commitments and Contingencies	Commitments and Contingencies From time to time, Actua and its businesses are involved in various claims and legal actions arising in the ordinary course of business. Actua does not expect any liability with respect to any legal claims or actions, either individually or in the aggregate, that would materially affect its consolidated financial position or cash flows.
Recent Accounting Pronouncements	Recent Accounting Pronouncements In May 2014, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2014-09, Revenue from Contracts with Customers, which provides a single, comprehensive revenue recognition model for all contracts with customers. Under the new guidance, an entity will recognize revenue based on amounts the entity expects to be entitled to in exchange for the transfer of goods or services. The new standard also includes enhanced disclosure requirements. The standard, which will be applied either retrospectively or as a cumulative-effect adjustment as of the date of adoption, will be effective for Actua beginning on January 1, 2018. In March 2016, the FASB issued ASU 2016-08, Revenue from Contracts with Customers (Topic 606): Principal versus Agent Considerations (Reporting Revenue Gross versus Net) , to clarify the implementation guidance on principal versus agent considerations. In April 2016, the FASB issued ASU 2016-10, Revenue from Contracts with Customers: Identifying Performance Obligations and Licensing , which clarifies the identification of performance obligations and the licensing implementation guidance. In May 2016, the FASB issued ASU 2016-12, Revenue from Contracts with Customers (Topic 606): Narrow-Scope Improvements and Practical Expedients, which addresses collectability, sales and other taxes, noncash consideration, contract modifications at transition, completed contracts at transition and technical corrections. In December 2016, ASU 2016-20 Technical Corrections and Improvements to Topic 606, Revenue from Contracts with Customers, was issued by the FASB to clarify and correct unintended application of the new revenue recognition guidance. The effective dates for these ASUs are the same as the effective date for ASU 2014-09. Actua has conducted a high level assessment to evaluate the impact of the new revenue recognition guidance by performing an initial analysis of its material contracts. During 2017, Actua will continue its impact assessment by performing detailed reviews of all of its contracts to determine the overall impact of the new accounting guidance on its results of operations and whether it will need to adjust its accounting policies, systems and/or controls. The assessment is ongoing; however, Actua currently believes that one of the key components in the guidance that will impact Actua's Consolidated Financial Statements is the requirement to capitalize the costs incurred to acquire new contracts. Currently, Actua expenses all sales commissions as incurred. Actua does not plan on adopting the new standard early and has not yet selected a transition methodology. In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842) . Under the new guidance, most leases will be recognized on Actua’s Consolidated Balance Sheets as liabilities with corresponding right-of-use assets. The new standard is effective for Actua for the annual period beginning January 1, 2019, including interim periods ending on or after March 31, 2019, with early adoption permitted. The standard must be adopted using a modified retrospective approach. Actua is in the process of evaluating the impact of this new guidance. In November 2016, the FASB issued ASU 2016-18, Statement of Cash Flows (Topic 230): Restricted Cash. The new standard requires that the statement of cash flows explain the change during the period of both cash and cash equivalents as well as restricted cash balances. Therefore, restricted cash should be included within the cash and cash equivalents balance when reconciling the beginning and ending period amounts shown on the statement of cash flows. This ASU is effective for fiscal years beginning after December 31, 2017, and early adoption is permitted. The adoption of this standard will only impact the presentation of Actua's Statement of Cash Flows and will not have an impact on Actua's results of operations. Actua does not intend to early adopt this new standard. In January 2017, the FASB issued ASU 2017-01, Business Combinations (Topic 805): Clarifying the Definition of a Business. The new standard clarifies the definition of a business and whether an acquisition should be accounted for as an asset acquisition or a business acquisition. The new standard is effective for Actua for the annual period beginning January 1, 2018, including interim periods ending on or after March 31, 2018. The new standard is to be applied prospectively only, and no further disclosure is required once the new methodology is adopted and applied. In January 2017, the FASB issued ASU 2017-04, Intangibles - Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment. The new standard simplifies the subsequent measurement of goodwill by eliminating Step 2 for the goodwill impairment test. In doing so, Actua will no longer determine goodwill impairment by calculating the implied fair value of the goodwill by assigning the fair value of a reporting unit to its assets and liabilities. Instead, Actua will compare the fair value of a reporting unit against Actua's carrying value of that reporting unit and record impairment for the amount that the carrying value exceeds the fair value, limited by the amount of goodwill assigned to that reporting unit. Actua plans to adopt this standard during the year ending December 31, 2017. Recently Adopted Accounting Guidance In March 2016, the FASB issued ASU 2016-09, Compensation—Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting , which provides guidance involving several aspects of the accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities and classification on the statement of cash flows. Under ASU 2016-09, all excess tax benefits and tax deficiencies (including tax benefits of dividends on share-based payment awards) should be recognized as income tax expense or benefit in the statement of operations, whereas under prior GAAP, excess tax benefits were recognized in additional paid-in capital and tax deficiencies were recognized either as an offset to accumulated excess tax benefits, if any, or in the statement of operations. Under ASU 2016-09, excess tax benefits should be classified along with other income tax cash flows as an operating activity, as opposed to a financing activity under prior GAAP. Additionally, an entity can make an accounting policy election to either estimate the number of awards that are expected to vest (prior GAAP) or account for forfeitures when they occur. The amendments in this update were effective for Actua for annual periods beginning January 1, 2017. The adoption of ASU 2016-09 did not have a significant impact on Actua's Consolidated Financial Statements.

Goodwill and Intangible Assets

Goodwill and Intangible Assets (Tables)	6 Months Ended
	Jun. 30, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
Summary of Activity Related to Goodwill	The following table summarizes the activity related to Actua’s goodwill: (in thousands) Gross Carrying Amount Accumulated Impairment Losses Net Carrying Amount Goodwill as of December 31, 2016 $ 271,443 $ (39,656 ) $ 231,787 Acquisitions (1) (363 ) — (363 ) Goodwill as of June 30, 2017 $ 271,080 $ (39,656 ) $ 231,424 ________________ (1) Refer to Note 4 , " Consolidated Businesses ," for details of acquisitions.
Summary of Intangible Assets from Continuing Operations	The following table summarizes Actua’s intangible assets: (in thousands) As of June 30, 2017 Gross Carrying Accumulated Net Carrying Intangible Assets Useful Life Amount Amortization Amount Customer relationships (1) 3-11 years $ 65,486 $ (26,573 ) $ 38,913 Trademarks/trade names 3-11 years 22,904 (11,651 ) 11,253 Technology 5-9 years 26,322 (12,538 ) 13,784 Non-compete agreements 3-5 years 3,908 (3,596 ) 312 118,620 (54,358 ) 64,262 Other intellectual property (2) Indefinite 700 — 700 $ 119,320 $ (54,358 ) $ 64,962 (in thousands) As of December 31, 2016 Gross Carrying Accumulated Net Carrying Intangible Assets Useful Life Amount Amortization Amount Customer relationships 3-11 years $ 65,603 $ (21,783 ) $ 43,820 Trademarks/trade names 3-11 years 22,904 (10,043 ) 12,861 Technology 5-9 years 26,334 (10,675 ) 15,659 Non-compete agreements 3-5 years 3,915 (3,549 ) 366 118,756 (46,050 ) 72,706 Other intellectual property (2) Indefinite 700 — 700 $ 119,456 $ (46,050 ) $ 73,406 ____________________ (1) Included in the accumulated amortization line item is an impairment charge of $0.3 million recognized in the three and six months ended June 30, 2017. (2) Included in this line item is a domain name valued at $0.3 million that Actua currently believes has an indefinite life, and a domain name for which Actua estimated the residual value to approximate its carrying value of $0.4 million as of both June 30, 2017 and December 31, 2016 .
Remaining Estimated Amortization Expense	The remaining estimated amortization expense for the respective years is set forth as follows: (in thousands) 2017 (remaining six months) $ 8,219 2018 12,348 2019 10,807 2020 9,367 2021 9,271 Thereafter 14,250 Remaining amortization expense $ 64,262

Consolidated Businesses (Tables

Consolidated Businesses (Tables)	6 Months Ended
	Jun. 30, 2017
Business Combinations [Abstract]
Allocations of Purchase Price to Identified Intangible Assets and Tangible Assets and Liabilities	The allocations of the respective ErgoAdvocate, E3 Solutions and SAS purchase prices to identified intangible assets and tangible assets and liabilities were as follows: (in thousands) ErgoAdvocate E3 Solutions SAS Goodwill $ 155 $ 1,074 $ 9,736 Customer lists (5-11 year life) 26 28 2,153 Trademarks, trade names and domain names (5-11 year life) — 6 — Technology (7-9 year life) 1,069 1,822 344 Non-compete agreement (5 year life) — 70 233 Deferred revenue — — (320 ) Other net assets (liabilities) — — (397 ) Total net assets acquired $ 1,250 $ 3,000 $ 11,749
Reconciliation of Activity Related to Redeemable Noncontrolling Interest	The following is a reconciliation of the activity related to Actua’s redeemable noncontrolling interests during the six months ended June 30, 2017 and 2016 : (in thousands) Balance at December 31, 2015 $ 10,506 Redeemable noncontrolling interests portion of subsidiary net income (loss) (129 ) Accretion to estimated redemption value 1,232 Equity transfer among owners (1) (5,247 ) Balance at June 30, 2016 $ 6,362 Balance at December 31, 2016 $ 5,858 Redeemable noncontrolling interests portion of subsidiary net income (loss) 36 Accretion to estimated redemption value 33 Balance at June 30, 2017 $ 5,927 ____________________________ (1) This amount primarily relates to cash payments made during the three months ended March 31, 2016 of $5.4 million to acquire (a) $2.5 million of redeemable noncontrolling interests associated with GovDelivery, (b) $2.4 million of redeemable noncontrolling interests associated with VelocityEHS and (c) $0.5 million of redeemable noncontrolling interests associated with FolioDynamix. These transactions increased Actua’s ownership in GovDelivery from 92% to 94% and its ownership in VelocityEHS from 98% to 99% . Actua's ownership in FolioDynamix did not significantly change from the repurchase.
Pro Forma Information	The information in the following table represents the revenue, net income (loss) attributable to Actua and net income (loss) per diluted share attributable to Actua for the relevant period had it owned E3 Solutions and SAS during that period. (in thousands, except per share data) Three Months Ended June 30, 2016 Six Months Ended June 30, 2016 Revenue $ 28,013 $ 54,734 Net income (loss) attributable to Actua Corporation $ (10,773 ) $ (23,143 ) Net income (loss) per diluted share attributable to Actua Corporation $ (0.29 ) $ (0.62 )

Discontinued Operations (Tables

Discontinued Operations (Tables)	6 Months Ended
	Jun. 30, 2017
Discontinued Operations and Disposal Groups [Abstract]
Schedule of Discontinued Operations	The results of Actua's discontinued GovDelivery operations, which are presented on the line item "Income (loss) from discontinued operations, net of tax" in Actua’s Consolidated Statements of Operations and Comprehensive Income (Loss) is summarized below: (in thousands) Major classes of line items constituting pretax loss of discontinued operations Three Months Ended June 30, 2016 Six Months Ended June 30, 2016 Revenue $ 9,855 $ 19,279 Cost of revenue (3,552 ) (7,022 ) Selling, general, administrative and other operating expenses (8,283 ) (16,218 ) Other non-major income and expense items (90 ) (169 ) Total discontinued operations before income taxes (2,070 ) (4,130 ) Income tax benefit (expense) (9 ) (30 ) Total discontinued operations, net of income taxes (2,079 ) (4,160 ) Less: discontinued operations attributable to noncontrolling interests (101 ) (211 ) Discontinued operations attributable to Actua Corporation $ (1,978 ) $ (3,949 )

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	6 Months Ended
	Jun. 30, 2017
Fair Value Disclosures [Abstract]
Fair Value Hierarchy of Financial Assets Measured at Fair Value on Recurring Basis	The fair value hierarchy of Actua’s financial assets and liabilities measured at fair value on a recurring basis were as follows: (in thousands) Valuation Technique Asset (Liability) (Approach) Level 1 Level 2 Level 3 June 30, 2017 Cash equivalents (money market accounts) $ 60,280 Market $ 60,280 $ — $ — Acquisition contingent consideration obligations (8,610 ) Income — — (8,610 ) $ 51,670 $ 60,280 $ — $ (8,610 ) Valuation Technique Asset (Liability) (Approach) Level 1 Level 2 Level 3 December 31, 2016 Cash equivalents (money market accounts) $ 89,220 Market $ 89,220 $ — $ — Acquisition contingent consideration obligations (8,752 ) Income — — (8,752 ) $ 80,468 $ 89,220 $ — $ (8,752 )

Equity-Based Compensation (Tabl

Equity-Based Compensation (Tables)	6 Months Ended
	Jun. 30, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Summary of Equity-Based Compensation	The following table summarizes the equity-based compensation recognized by expense line item on Actua’s Consolidated Statements of Operations and Comprehensive Income (Loss): (in thousands) Three Months Ended June 30, Six Months Ended June 30, 2017 2016 2017 2016 Cost of revenue $ 35 $ 22 $ 137 $ 54 Sales and marketing 100 72 192 160 General and administrative 3,552 3,554 7,041 7,977 Research and development 165 102 247 216 Total equity-based compensation $ 3,852 $ 3,750 $ 7,617 $ 8,407 Equity-based compensation by equity award type: (in thousands) Three Months Ended June 30, Six Months Ended June 30, 2017 2016 2017 2016 Restricted stock $ 3,081 $ 3,092 $ 6,142 $ 7,017 SARs 10 50 20 108 DSUs 74 94 148 193 3,165 3,236 6,310 7,318 Equity-based compensation for consolidated businesses 687 514 1,307 1,089 Total equity-based compensation $ 3,852 $ 3,750 $ 7,617 $ 8,407 Unrecognized equity-based compensation by equity award type: (in thousands, except weighted average years) As of June 30, Weighted Average Years Remaining of Equity-Based Compensation as of 2017 2016 June 30, 2017 Restricted stock $ 8,541 $ 16,096 0.87 SARs 98 137 2.82 DSUs 282 578 0.95 8,921 16,811 Equity-based compensation for consolidated businesses 6,189 5,537 2.67 Total equity-based compensation $ 15,110 $ 22,348
Changes in Restricted Stock	The table below summarizes the grant and vesting of performance plan-related restricted stock grants for each of 2015, 2016 and 2017. Percentage of Target Bonus Potentially Payable in Restricted Stock ACTA Stock Price at Issuance Restricted Shares Granted Performance Plan Achievement Percentage Restricted Shares Vested Restricted Shares Forfeited Actua 2015 Performance Plan 150 % $ 16.76 316,715 83 % 175,249 141,466 Actua 2016 Performance Plan 100 % $ 8.44 419,283 60 % 251,570 167,713 Actua 2017 Performance Plan 100 % $ 13.85 263,756 * * * * To be determined in the first quarter of 2018. Share activity with respect to restricted stock awards for the three and six months ended June 30, 2017 and 2016 was as follows: Number of Shares Weighted Average Grant Date Fair Value Per Share Issued and unvested as of December 31, 2015 3,480,828 $ 16.51 Granted 434,283 $ 8.44 Vested (657,317 ) $ 18.75 Forfeited (588,819 ) $ 10.69 Issued and unvested as of March 31, 2016 2,668,975 $ 15.93 Granted 112,397 $ 9.33 Vested (81,391 ) $ 13.33 Forfeited (7,500 ) $ 8.44 Issued and unvested as of June 30, 2016 2,692,481 $ 15.73 Number of Shares Weighted Average Grant Date Fair Value Per Share Issued and unvested as of December 31, 2016 2,644,030 $ 14.15 Granted 286,256 $ 13.85 Vested (625,646 ) $ 15.30 Forfeited (167,712 ) $ 8.44 Issued and unvested as of March 31, 2017 2,136,928 $ 14.22 Granted 54,310 $ 13.95 Vested (81,897 ) $ 9.66 Issued and unvested as of June 30, 2017 2,109,341 $ 14.39 The total aggregate fair value of restricted stock awards that vested and were converted into Actua’s Common Stock during the three and six months ended June 30, 2017 and 2016 was as follows: (in thousands) 2017 2016 Three months ended March 31, $ 8,548 $ 5,243 Three months ended June 30, 1,145 776 Six months ended June 30, $ 9,693 $ 6,019 The following shares were surrendered by Actua's employees to satisfy their obligations for withholding taxes: 2017 2016 Three months ended March 31, 211,560 191,898 Three months ended June 30, 736 736 Six months ended June 30, 212,296 192,634
Issued and Unvested Shares Of Restricted Stock Granted	As of June 30, 2017 , issued and unvested shares of restricted stock granted to Actua’s employees and directors vest as follows: Number of Shares Unvested Vesting Conditions 1,335,700 Subject to certain market conditions, as discussed below 263,756 Subject to certain performance conditions, as discussed below 509,885 Subject to certain service conditions, as discussed below 2,109,341
Changes in Stock Appreciation Rights	The activity with respect to SARs for the six -month periods ended June 30, 2017 and 2016 was as follows: Number of SARs Weighted Average Base Price Weighted Average Outstanding as of December 31, 2015 479,656 $ 10.64 $ 5.80 Activity for the three months ended March 31, 2016 — $ — $ — Outstanding as of March 31, 2016 479,656 $ 10.64 $ 5.80 Granted 25,000 $ 9.04 $ 4.80 Outstanding as of June 30, 2016 504,656 $ 10.56 $ 5.75 Number of SARs Weighted Average Base Price Weighted Average Outstanding as of December 31, 2016 307,514 $ 11.28 $ 6.21 Exercised (1) (939 ) $ 9.98 $ 5.33 Outstanding as of March 31, 2017 306,575 $ 11.28 $ 6.21 Activity for the three months ended June 30, 2017 — $ — $ — Outstanding as of June 30, 2017 306,575 $ 11.28 $ 6.21 (1) The exercise of SARs listed above resulted in the issuance of the following shares of Actua's Common Stock: 2017 2016 Three months ended March 31, 171 — Three months ended June 30, — — Six months ended June 30, 171 — The following table summarizes information about SARs outstanding as of June 30, 2017 : Grant price Number of SARs Outstanding Number of SARs Exercisable Weighted Average Remaining Contractual Life of SARs Outstanding (in years) Aggregate Intrinsic Value of SARs Outstanding as of June 30, 2017 (in thousands) $6.70 - $8.76 29,950 29,950 1.23 $ 169 $9.02 - $9.25 43,625 24,875 7.25 215 $11.69 - $17.31 233,000 232,269 3.77 475 306,575 287,094 $ 859
Schedule of Share-based Compensation, Nonemployee Director Stock Award Plan, Activity	The following table summarizes the activity related to DSUs for the quarters ended June 30, 2017 and 2016 : Number of shares Weighted Issued and unvested as of December 31, 2015 90,000 $ 13.17 Activity for the three months ended March 31, 2016 — $ — Issued and unvested as of March 31, 2016 90,000 $ 13.17 Vested (30,000 ) $ 13.17 Forfeited (15,000 ) $ 13.17 Issued and unvested as of June 30, 2016 45,000 $ 13.17 Number of shares Weighted Issued and unvested as of December 31, 2016 33,750 $ 13.17 Vested (5,625 ) $ 13.17 Issued and unvested as of March 31, 2017 28,125 $ 13.17 Vested (5,625 ) $ 13.17 Issued and unvested as of June 30, 2017 22,500 $ 13.17
Assumptions Used to Determine Fair Value of Stock Options	The following assumptions were used to determine the fair value of stock options granted by Actua's consolidated businesses to their employees during the six -month periods ended June 30, 2017 and 2016 . Due to insufficient historical data, Actua's consolidated businesses used the simplified method to determine the expected life of all stock options granted under the respective equity incentive plans. Six Months Ended June 30, 2017 2016 Expected volatility 50% 45% - 50% Average expected life of stock options (in years) 6.25 5.93 - 6.25 Risk-free interest rate 2.07% 1.42% - 1.49% Dividend yield — —

Other Income (Loss), Net (Table

Other Income (Loss), Net (Tables)	6 Months Ended
	Jun. 30, 2017
Other Income and Expenses [Abstract]
Schedule of Other Nonoperating Income (Expense)	Other income (loss), net, consists of the effect of transactions and other events relating to Actua’s ownership interests and its operations in general, and is comprised of the following: (in thousands) Three Months Ended June 30, Six Months Ended June 30, 2017 2016 2017 2016 Gain (loss) on sales/distributions of ownership interests $ 2,697 $ — $ 3,654 $ 46 Other (1) (139 ) (15 ) (229 ) (151 ) Total other income (loss), net $ 2,558 $ (15 ) $ 3,425 $ (105 ) ____________________________ (1) This amount relates primarily to currency gain (loss) which is attributable to Actua's consolidated businesses.

Net Income (Loss) Per Share (Ta

Net Income (Loss) Per Share (Tables)	6 Months Ended
	Jun. 30, 2017
Earnings Per Share [Abstract]
Calculations of Net Loss Per Share	The calculations of net loss per share were as follows: (in thousands, except per share data) Three Months Ended June 30, Six Months Ended June 30, 2017 2016 2017 2016 Basic and Diluted: Net income (loss) from continuing operations $ (6,863 ) $ (10,763 ) $ (16,533 ) $ (23,123 ) Net income (loss) from discontinued operations — (1,978 ) — (3,949 ) Net income (loss) attributable to Actua Corporation $ (6,863 ) $ (12,741 ) $ (16,533 ) $ (27,072 ) Basic and Diluted: Net income (loss) from continuing operations per share $ (0.22 ) $ (0.30 ) $ (0.52 ) $ (0.62 ) Net income (loss) from discontinued operations per share — (0.05 ) — (0.11 ) Net income (loss) attributable to Actua Corporation per share $ (0.22 ) $ (0.35 ) $ (0.52 ) $ (0.73 ) Shares used in computation of basic and diluted income (loss) per share 31,267 36,760 31,687 37,027
Potentially Dilutive Securities Not Included in Computation of Diluted Net Loss Per Share	The following potentially dilutive securities were not included in the computation of diluted net loss per share, as their effect would have been anti-dilutive: Units (in thousands) Weighted Average Price per Share Three Months Ended June 30, 2017 SARs 307 $ 11.28 Restricted stock (1) 2,109 $ — DSUs 23 $ — Six Months Ended June 30, 2017 SARs 307 $ 11.28 Restricted stock (1) 2,109 $ — DSUs 23 $ — Three Months Ended June 30, 2016 SARs 505 $ 10.56 Restricted stock (1) 2,692 $ — DSUs 45 $ — Six Months Ended June 30, 2016 SARs 505 $ 10.56 Restricted stock (1) 2,692 $ — DSUs 45 $ — ___________________________ (1) Anti-dilutive securities include contingently issuable shares unvested as of June 30, 2017 and 2016 , the vesting of which is based on service conditions, performance conditions and market conditions that have not yet been achieved. See Note 10 , " Equity-Based Compensation ."

Segment Information (Tables)

Segment Information (Tables)	6 Months Ended
	Jun. 30, 2017
Segment Reporting [Abstract]
Summary of Selected Information Related to Segments	The following tables summarize selected information related to Actua’s segments. The amounts presented as "Dispositions" in the following tables reflect the effects of the GovDelivery Sale for all periods presented. For more information, see Note 5 , " Discontinued Operations ." (in thousands) Reconciling Items Vertical Cloud Vertical Cloud (Venture) Total Segment Dispositions Other (1) Consolidated Three Months Ended June 30, 2017 Revenue $ 31,189 $ — $ 31,189 $ — $ — $ 31,189 Net income (loss) attributable to Actua Corporation $ (4,004 ) $ — $ (4,004 ) $ — $ (2,859 ) $ (6,863 ) Three Months Ended June 30, 2016 Revenue $ 26,854 $ — $ 26,854 $ — $ — $ 26,854 Net income (loss) attributable to Actua Corporation $ (5,647 ) $ — $ (5,647 ) $ (1,978 ) $ (5,116 ) $ (12,741 ) Six Months Ended June 30, 2017 Revenue $ 61,696 $ — $ 61,696 $ — $ — $ 61,696 Net income (loss) attributable to Actua Corporation $ (8,108 ) $ — $ (8,108 ) $ — $ (8,425 ) $ (16,533 ) Six Months Ended June 30, 2016 Revenue $ 52,040 $ — $ 52,040 $ — $ — $ 52,040 Net income (loss) attributable to Actua Corporation $ (12,087 ) $ — $ (12,087 ) $ (3,949 ) $ (11,036 ) $ (27,072 ) ________________ (1) The following table reflects the components of "Net income (loss) attributable to Actua Corporation" included within the "Other" category : (in thousands) Three Months Ended June 30, Six Months Ended June 30, Selected Data: 2017 2016 2017 2016 General and administrative expense $ (6,147 ) $ (5,818 ) $ (13,298 ) $ (12,763 ) Impairment related and other expense — (45 ) — (45 ) Other income (loss), net (refer to Note 11) 2,697 — 3,654 46 Interest income 128 31 274 68 Net (income) loss attributable to the noncontrolling interest 463 716 945 1,658 Net income (loss) $ (2,859 ) $ (5,116 ) $ (8,425 ) $ (11,036 ) (in thousands) Vertical Cloud Vertical Cloud (Venture) Total Segment Dispositions Other Consolidated Results Assets as of: June 30, 2017 $ 350,231 $ 17,473 $ 367,704 $ — $ 46,935 $ 414,639 December 31, 2016 $ 358,522 $ 17,250 $ 375,772 $ — $ 77,946 $ 453,718

The Company (Detail)

The Company (Detail)	Jun. 30, 2017business
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number businesses owned	3

Significant Accounting Polici32

Significant Accounting Policies (Detail)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2017USD ($)	Jun. 30, 2016USD ($)	Jun. 30, 2017USD ($)revenue_source	Jun. 30, 2016USD ($)	Dec. 31, 2016USD ($)
Accounting Policies [Abstract]
Restricted cash and cash equivalents	$ 300,000		$ 300,000		$ 400,000
Goodwill impairment loss			0		0
Impairment of intangible assets			0		0
Impairment of cost method investments			$ 0		$ 0
Significant Accounting Policies [Line Items]
Initial subscription arrangement, minimum			1 year
Initial subscription arrangement, maximum			3 years
Deferred revenue	38,500,000		$ 38,500,000
Interest paid	0	$ 0	0	$ 0
Income taxes paid	400,000	0	400,000	0
Capital expenditures incurred but not yet paid	100,000	$ 400,000	100,000	$ 1,000,000
Proceeds from escrow releases	11,300,000		$ 11,300,000
Bolt
Significant Accounting Policies [Line Items]
Subscription period			1 month
FolioDynamix
Significant Accounting Policies [Line Items]
Initial subscription arrangement, minimum			3 years
Initial subscription arrangement, maximum			5 years
Deferred revenue	$ 3,100,000		$ 3,100,000
VelocityEHS
Significant Accounting Policies [Line Items]
Number of sources of revenue | revenue_source			2

Goodwill and Intangible Asset33

Goodwill and Intangible Assets - Summary of Activity Related to Goodwill (Detail) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2017	Dec. 31, 2016
Gross Carrying Amount
Goodwill as of December 31, 2016	$ 271,443
Acquisitions	(363)
Goodwill as of June 30, 2017	271,080
Accumulated Impairment Losses
Goodwill	(39,656)	$ (39,656)
Net Carrying Amount
Goodwill as of December 31, 2016	231,787
Acquisitions	(363)
Goodwill as of June 30, 2017	$ 231,424

Goodwill and Intangible Asset34

Goodwill and Intangible Assets - Summary of Intangible Assets from Continuing Operations (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Acquired Finite-Lived Intangible Assets [Line Items]
Asset impairment charges	$ 310	$ 117	$ 670	$ 348
Gross Carrying Amount	118,620		118,620		$ 118,756
Accumulated Amortization	(54,358)		(54,358)		(46,050)
Remaining amortization expense	64,262		64,262		72,706
Acquired Indefinite-lived Intangible Assets [Line Items]
Estimated salvage value of the asset	400		400		400
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Gross Carrying Amount	119,320		119,320		119,456
Accumulated Amortization	(54,358)		(54,358)		(46,050)
Net Carrying Amount	64,962		64,962		73,406
Other intellectual property
Acquired Indefinite-lived Intangible Assets [Line Items]
Intangible assets (excluding goodwill)	700		700		700
Internet domain names
Acquired Indefinite-lived Intangible Assets [Line Items]
Intangible assets (excluding goodwill)	300		300		300
Customer relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Asset impairment charges	300		300
Gross Carrying Amount	65,486		65,486		65,603
Accumulated Amortization	(26,573)		(26,573)		(21,783)
Remaining amortization expense	38,913		38,913		43,820
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Accumulated Amortization	(26,573)		$ (26,573)		$ (21,783)
Customer relationships | Minimum
Acquired Finite-Lived Intangible Assets [Line Items]
Useful Life			3 years		3 years
Customer relationships | Maximum
Acquired Finite-Lived Intangible Assets [Line Items]
Useful Life			11 years		11 years
Trademarks/trade names
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	22,904		$ 22,904		$ 22,904
Accumulated Amortization	(11,651)		(11,651)		(10,043)
Remaining amortization expense	11,253		11,253		12,861
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Accumulated Amortization	(11,651)		$ (11,651)		$ (10,043)
Trademarks/trade names | Minimum
Acquired Finite-Lived Intangible Assets [Line Items]
Useful Life			3 years		3 years
Trademarks/trade names | Maximum
Acquired Finite-Lived Intangible Assets [Line Items]
Useful Life			11 years		11 years
Technology
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	26,322		$ 26,322		$ 26,334
Accumulated Amortization	(12,538)		(12,538)		(10,675)
Remaining amortization expense	13,784		13,784		15,659
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Accumulated Amortization	(12,538)		$ (12,538)		$ (10,675)
Technology | Minimum
Acquired Finite-Lived Intangible Assets [Line Items]
Useful Life			5 years		5 years
Technology | Maximum
Acquired Finite-Lived Intangible Assets [Line Items]
Useful Life			9 years		9 years
Non-compete agreements
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	3,908		$ 3,908		$ 3,915
Accumulated Amortization	(3,596)		(3,596)		(3,549)
Remaining amortization expense	312		312		366
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Accumulated Amortization	$ (3,596)		$ (3,596)		$ (3,549)
Non-compete agreements | Minimum
Acquired Finite-Lived Intangible Assets [Line Items]
Useful Life			3 years		3 years
Non-compete agreements | Maximum
Acquired Finite-Lived Intangible Assets [Line Items]
Useful Life			5 years		5 years

Goodwill and Intangible Asset35

Goodwill and Intangible Assets - Additional Information (Detail) - USD ($)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Goodwill and Intangible Assets Disclosure [Abstract]
Impairment of cost method investments			$ 0		$ 0
Amortization of intangible assets	$ 4,333,000	$ 3,626,000	$ 7,996,000	$ 7,208,000

Goodwill and Intangible Asset36

Goodwill and Intangible Assets - Remaining Estimated Amortization Expense (Detail) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Goodwill and Intangible Assets Disclosure [Abstract]
2017 (remaining six months)	$ 8,219
2,018	12,348
2,019	10,807
2,020	9,367
2,021	9,271
Thereafter	14,250
Remaining amortization expense	$ 64,262	$ 72,706

Consolidated Businesses - Addit

Consolidated Businesses - Additional Information (Detail) - USD ($)	Oct. 31, 2016	Sep. 16, 2016	Jan. 22, 2016	Jun. 30, 2017	Jun. 30, 2016
Business Acquisition [Line Items]
Payments to acquire business, net of cash acquired				$ 515,000	$ 2,222,000
Impact of subsidiary equity transactions				1,264,000	1,549,000
Payments to acquire additional interest in subsidiaries					5,400,000
Actua's share of consolidated business equity transactions					3,900,000
Additional Paid-In Capital
Business Acquisition [Line Items]
Impact of subsidiary equity transactions				1,429,000	$ 1,526,000
ErgoAdvocate | VelocityEHS
Business Acquisition [Line Items]
Business acquisition, consideration transferred			$ 1,300,000
Cash paid for acquisition			$ 1,000,000
Payments to acquire business, net of cash acquired				300,000
E3 Solutions | VelocityEHS
Business Acquisition [Line Items]
Business acquisition, consideration transferred		$ 3,000,000
Cash paid for acquisition		2,700,000
Liabilities incurred to be paid in equal halves on one year and 18 month anniversaries of the closing		$ 300,000
SAS
Business Acquisition [Line Items]
Contingent consideration liability	$ 7,900,000			$ 8,600,000
SAS | FolioDynamix
Business Acquisition [Line Items]
Business acquisition, consideration transferred	3,900,000
Maximum consideration payable	25,000,000
Consideration transferred, net of working capital adjustment	2,900,000
Liabilities incurred to be paid over 15 month period	$ 1,000,000

Consolidated Businesses - Alloc

Consolidated Businesses - Allocations of Purchase Price to Identified Intangible Assets and Tangible Assets and Liabilities (Detail) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2017	Dec. 31, 2016	Oct. 31, 2016	Sep. 16, 2016	Jan. 22, 2016
Net assets acquired:
Goodwill	$ 231,424	$ 231,787
Trademarks, tradenames, and domain names | Maximum
Business Acquisition [Line Items]
Finite intangible assets, useful life	11 years
Technology | Minimum
Business Acquisition [Line Items]
Finite intangible assets, useful life	5 years	5 years
Technology | Maximum
Business Acquisition [Line Items]
Finite intangible assets, useful life	9 years	9 years
Non-compete agreements | Minimum
Business Acquisition [Line Items]
Finite intangible assets, useful life	3 years	3 years
Non-compete agreements | Maximum
Business Acquisition [Line Items]
Finite intangible assets, useful life	5 years	5 years
ErgoAdvocate, E3 Solutions, and SAS | Customer lists | Minimum
Business Acquisition [Line Items]
Finite intangible assets, useful life	5 years
ErgoAdvocate, E3 Solutions, and SAS | Customer lists | Maximum
Business Acquisition [Line Items]
Finite intangible assets, useful life	11 years
ErgoAdvocate, E3 Solutions, and SAS | Trademarks, tradenames, and domain names | Minimum
Business Acquisition [Line Items]
Finite intangible assets, useful life	5 years
ErgoAdvocate, E3 Solutions, and SAS | Technology | Minimum
Business Acquisition [Line Items]
Finite intangible assets, useful life	7 years
ErgoAdvocate, E3 Solutions, and SAS | Technology | Maximum
Business Acquisition [Line Items]
Finite intangible assets, useful life	9 years
ErgoAdvocate, E3 Solutions, and SAS | Non-compete agreements
Business Acquisition [Line Items]
Finite intangible assets, useful life	5 years
ErgoAdvocate
Net assets acquired:
Goodwill					$ 155
Deferred revenue					0
Other net assets (liabilities)					0
Total net assets acquired					1,250
ErgoAdvocate | Customer lists
Net assets acquired:
Intangible assets					26
ErgoAdvocate | Trademarks, tradenames, and domain names
Net assets acquired:
Intangible assets					0
ErgoAdvocate | Technology
Net assets acquired:
Intangible assets					1,069
ErgoAdvocate | Non-compete agreements
Net assets acquired:
Intangible assets					$ 0
E3 Solutions
Net assets acquired:
Goodwill				$ 1,074
Deferred revenue				0
Other net assets (liabilities)				0
Total net assets acquired				3,000
E3 Solutions | Customer lists
Net assets acquired:
Intangible assets				28
E3 Solutions | Trademarks, tradenames, and domain names
Net assets acquired:
Intangible assets				6
E3 Solutions | Technology
Net assets acquired:
Intangible assets				1,822
E3 Solutions | Non-compete agreements
Net assets acquired:
Intangible assets				$ 70
SAS
Net assets acquired:
Goodwill			$ 9,736
Deferred revenue			(320)
Other net assets (liabilities)			(397)
Total net assets acquired			11,749
SAS | Customer lists
Net assets acquired:
Intangible assets			2,153
SAS | Trademarks, tradenames, and domain names
Net assets acquired:
Intangible assets			0
SAS | Technology
Net assets acquired:
Intangible assets			344
SAS | Non-compete agreements
Net assets acquired:
Intangible assets			$ 233

Consolidated Businesses - Recon

Consolidated Businesses - Reconciliation of Activity Related to Redeemable Noncontrolling Interest (Detail) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2015
Reconciliation activity related to the redeemable non controlling interest
Beginning balance	$ 5,858
Ending balance	5,927
Payments to acquire additional interest in subsidiaries		$ 5,400
Redeemable noncontrolling interest
Reconciliation activity related to the redeemable non controlling interest
Beginning balance	5,858	10,506
Redeemable noncontrolling interests portion of subsidiary net income (loss)	36	(129)
Accretion to estimated redemption value	33	1,232
Equity transfer among owners		(5,247)
Ending balance	$ 5,927	6,362
GovDelivery
Reconciliation activity related to the redeemable non controlling interest
Payments to acquire additional interest in subsidiaries		$ 2,500
Ownership percentage by parent		94.00%	92.00%
VelocityEHS
Reconciliation activity related to the redeemable non controlling interest
Payments to acquire additional interest in subsidiaries		$ 2,400
Ownership percentage by parent		99.00%	98.00%
FolioDynamix
Reconciliation activity related to the redeemable non controlling interest
Payments to acquire additional interest in subsidiaries		$ 500

Consolidated Businesses - Pro F

Consolidated Businesses - Pro Forma Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2016
E3 Solutions And SAS
Business Acquisition [Line Items]
Revenue	$ 28,013
Net income (loss) attributable to Actua Corporation	$ (10,773)
Net income (loss) per diluted share attributable to Actua Corporation (in dollars per share)	$ (0.29)
ErgoAdvocate, WellNet, and E3 Solutions
Business Acquisition [Line Items]
Revenue		$ 54,734
Net income (loss) attributable to Actua Corporation		$ (23,143)
Net income (loss) per diluted share attributable to Actua Corporation (in dollars per share)		$ (0.62)

Discontinued Operations - Addit

Discontinued Operations - Additional Information (Details) - GovDelivery - Disposed of by sale - USD ($) $ in Millions	Oct. 18, 2016	Dec. 31, 2016
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Consideration	$ 153
Proceeds from divestiture of business, net of cash divested	133
Additional amount of proceeds to be held in escrow subject to indemnification claims	$ 10
Gain (loss) on disposal of discontinued operation		$ 124.8

Discontinued Operations - Loss

Discontinued Operations - Loss from Discontinued Operations, net of tax (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Major classes of line items constituting pretax loss of discontinued operations
Total discontinued operations, net of income taxes	$ 0	$ (2,079)	$ 0	$ (4,160)
Discontinued operations attributable to Actua Corporation	$ 0	(1,978)	$ 0	(3,949)
GovDelivery | Disposed of by sale
Major classes of line items constituting pretax loss of discontinued operations
Revenue		9,855		19,279
Cost of revenue		(3,552)		(7,022)
Selling, general, administrative and other operating expenses		(8,283)		(16,218)
Other non-major income and expense items		(90)		(169)
Total discontinued operations before income taxes		(2,070)		(4,130)
Income tax benefit (expense)		(9)		(30)
Total discontinued operations, net of income taxes		(2,079)		(4,160)
Less: discontinued operations attributable to noncontrolling interests		(101)		(211)
Discontinued operations attributable to Actua Corporation		$ (1,978)		$ (3,949)

Cost Method Businesses (Detail)

Cost Method Businesses (Detail) - USD ($)	6 Months Ended	12 Months Ended
	Jun. 30, 2017	Dec. 31, 2016
Investments, All Other Investments [Abstract]
Carrying value of holdings in cost method companies	$ 17,500,000	$ 17,300,000
Impairment of cost method investments	$ 0	$ 0

Fair Value Measurements - Fair

Fair Value Measurements - Fair Value Hierarchy of Financial Assets Measured at Fair Value on Recurring Basis (Detail) - Recurring - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Cash equivalents (money market accounts)	$ 60,280	$ 89,220
Acquisition contingent consideration obligations	(8,610)	(8,752)
Fair value assets and liabilities measured on recurring basis, total	51,670	80,468
Level 1
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Cash equivalents (money market accounts)	60,280	89,220
Acquisition contingent consideration obligations	0	0
Fair value assets and liabilities measured on recurring basis, total	60,280	89,220
Level 2
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Cash equivalents (money market accounts)	0	0
Acquisition contingent consideration obligations	0	0
Fair value assets and liabilities measured on recurring basis, total	0	0
Level 3
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Cash equivalents (money market accounts)	0	0
Acquisition contingent consideration obligations	(8,610)	(8,752)
Fair value assets and liabilities measured on recurring basis, total	$ (8,610)	$ (8,752)

Fair Value Measurements - Addit

Fair Value Measurements - Additional Information (Detail) - SAS - USD ($) $ in Millions	Jun. 30, 2017	Oct. 31, 2016
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Contingent consideration liability	$ 8.6	$ 7.9
Maximum
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Contingent consideration liability	$ 20.4

Debt (Detail)

Debt (Detail)	Jun. 30, 2017USD ($)	Dec. 31, 2016USD ($)	Jan. 01, 2015USD ($)	Aug. 09, 2013USD ($)minority_shareholder
Line Of Credit Facility [Line Items]
Short-term debt	$ 1,320,000	$ 1,320,000
Neurone
Line Of Credit Facility [Line Items]
Number of minority shareholders | minority_shareholder				1
Neurone | Term Loan Credit Facility
Line Of Credit Facility [Line Items]
Line of credit				$ 500,000
Loan interest rate				8.00%
Fair value of line of credit	500,000	500,000
Short-term debt	500,000	500,000
Neurone | Additional Term Loan Credit Facility
Line Of Credit Facility [Line Items]
Line of credit			$ 800,000
Loan interest rate			8.00%
Fair value of line of credit	800,000
Short-term debt	$ 800,000	$ 800,000

Treasury Stock (Detail)

Treasury Stock (Detail) - USD ($)	3 Months Ended		6 Months Ended		114 Months Ended	115 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jul. 28, 2017	Dec. 31, 2016	Dec. 31, 2013
Equity, Class of Treasury Stock [Line Items]
Common stock amount authorized under repurchase program, value (up to)							$ 189,800,000	$ 150,000,000
Additional authorized amount							$ 39,800,000
Remaining authorized repurchase amount	$ 30,500,000		$ 30,500,000		$ 30,500,000
Repurchase of common stock (in shares)	929,744	540,000	1,825,531	1,010,000
Payment for repurchase of common stock, net of fees			$ 25,100,000	$ 9,500,000
Average stock price of shares repurchased (in dollars per share)			$ 13.95	$ 9.41
Payments for treasury stock			$ 25,088,000	$ 9,533,000	$ 159,300,000
Accrued value of repurchase of common stock	$ 500,000
Subsequent Event
Equity, Class of Treasury Stock [Line Items]
Repurchase of common stock (in shares)						13,761,211
Average stock price of shares repurchased (in dollars per share)						$ 11.58

Equity-Based Compensation - Add

Equity-Based Compensation - Additional Information (Detail)	6 Months Ended
	Jun. 30, 2017shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares authorized (in shares)	2,057,145
Minimum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period	1 year
Expiration period	8 years
Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period	4 years
Expiration period	10 years

Equity-Based Compensation - Sum

Equity-Based Compensation - Summary of Equity-Based Compensation (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Equity-based compensation	$ 3,852	$ 3,750	$ 7,617	$ 8,407
Unrecognized equity-based compensation	15,110	22,348	15,110	22,348
Parent Company
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Equity-based compensation	3,165	3,236	6,310	7,318
Unrecognized equity-based compensation	8,921	16,811	8,921	16,811
Subsidiaries
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Equity-based compensation	687	514	1,307	1,089
Unrecognized equity-based compensation	6,189	5,537	$ 6,189	5,537
Weighted Average Years Remaining of Equity-Based Compensation			2 years 8 months 1 day
DSUs | Parent Company
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Equity-based compensation	74	94	$ 148	193
Unrecognized equity-based compensation	282	578	$ 282	578
Weighted Average Years Remaining of Equity-Based Compensation			11 months 12 days
Restricted stock | Parent Company
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Equity-based compensation	3,081	3,092	$ 6,142	7,017
Unrecognized equity-based compensation	8,541	16,096	$ 8,541	16,096
Weighted Average Years Remaining of Equity-Based Compensation			10 months 15 days
SARs | Parent Company
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Equity-based compensation	10	50	$ 20	108
Unrecognized equity-based compensation	98	137	$ 98	137
Weighted Average Years Remaining of Equity-Based Compensation			2 years 9 months 26 days
Cost of revenue
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Equity-based compensation	35	22	$ 137	54
Sales and marketing
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Equity-based compensation	100	72	192	160
General and administrative
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Equity-based compensation	3,552	3,554	7,041	7,977
Research and development
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Equity-based compensation	$ 165	$ 102	$ 247	$ 216

Equity-Based Compensation - Sha

Equity-Based Compensation - Share Activity with Respect to Restricted Stock (Detail) - $ / shares	3 Months Ended				6 Months Ended		12 Months Ended
	Jun. 30, 2017	Mar. 31, 2017	Jun. 30, 2016	Mar. 31, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Number of Shares
Number of Shares, Forfeited (in shares)			(15,000)
Restricted stock
Number of Shares
Number of Shares, Issued and unvested as of beginning of period (in shares)	2,136,928	2,644,030	2,668,975	3,480,828	2,644,030	3,480,828	3,480,828
Number of Shares, Granted (in shares)	54,310	286,256	112,397	434,283
Number of Shares, Vested (in shares)	(81,897)	(625,646)	(81,391)	(657,317)
Number of Shares, Forfeited (in shares)		(167,712)	(7,500)	(588,819)
Number of Shares, Issued and unvested as of end of period (in shares)	2,109,341	2,136,928	2,692,481	2,668,975	2,109,341	2,692,481	2,644,030
Weighted Average Grant Date Fair Value Per Share
Weighted Average Grant Date Fair Value, Issued and unvested as of beginning of period (in dollars per share)	$ 14.22	$ 14.15	$ 15.93	$ 16.51	$ 14.15	$ 16.51	$ 16.51
Weighted Average Grant Date Fair Value, Granted (in dollars per share)	13.95	13.85	9.33	8.44
Weighted Average Grant Date Fair Value, Vested (in dollars per share)	9.66	15.30	13.33	18.75
Weighted Average Grant Date Fair Value, Forfeited (in dollars per share)		8.44	8.44	10.69
Weighted Average Grant Date Fair Value, Issued and unvested as of end of period (in dollars per share)	$ 14.39	$ 14.22	$ 15.73	$ 15.93	$ 14.39	$ 15.73	$ 14.15

Equity-Based Compensation - Tot

Equity-Based Compensation - Total aggregate fair value of restricted stock and shares surrendered by Actua's employees (Detail) - Restricted stock - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2017	Mar. 31, 2017	Jun. 30, 2016	Mar. 31, 2016	Jun. 30, 2017	Jun. 30, 2016
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Restricted stock vested in period, fair value	$ 1,145	$ 8,548	$ 776	$ 5,243	$ 9,693	$ 6,019
Shares paid for tax withholding for share based payments (in shares)	736	211,560	736	191,898	212,296	192,634

Equity-Based Compensation - Iss

Equity-Based Compensation - Issued and Unvested Shares of Restricted Stock Granted (Detail) - Restricted stock, time vested	Jun. 30, 2017shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of Shares Unvested	2,109,341
Subject to certain market conditions
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of Shares Unvested	1,335,700
Subject to certain performance conditions
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of Shares Unvested	263,756
Subject to certain service conditions
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of Shares Unvested	509,885

Equity-Based Compensation - Res

Equity-Based Compensation - Restricted Stock Awards with Market Conditions Additional Information (Detail) $ / shares in Units, $ in Millions	1 Months Ended	3 Months Ended				6 Months Ended		12 Months Ended
	Feb. 28, 2014trading_day$ / sharesshares	Jun. 30, 2017USD ($)shares	Mar. 31, 2017shares	Jun. 30, 2016USD ($)shares	Mar. 31, 2016shares	Jun. 30, 2017USD ($)	Jun. 30, 2016USD ($)	Dec. 31, 2011shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares, forfeited (in shares)				15,000
Restricted stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares granted (in shares)		54,310	286,256	112,397	434,283
Number of shares, forfeited (in shares)			167,712	7,500	588,819
Restricted stock | 2014 Management Market-Based Awards
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares granted (in shares)	1,277,500							366,666
Share-based payment award, threshold, number of trading days | trading_day	45
Vesting percentage	25.00%
Number of shares, forfeited (in shares)		20,000
Restricted stock | 2014 Management Market-Based Awards | Tranche one
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Volume weighted average price targets (in dollars per share) | $ / shares	$ 28.07
Restricted stock | 2014 Management Market-Based Awards | Tranche two
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Volume weighted average price targets (in dollars per share) | $ / shares	30.16
Restricted stock | 2014 Management Market-Based Awards | Tranche three
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Volume weighted average price targets (in dollars per share) | $ / shares	32.38
Restricted stock | 2014 Management Market-Based Awards | Tranche four
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Volume weighted average price targets (in dollars per share) | $ / shares	$ 34.71
Restricted stock | 2014 Employee Market-Based Awards
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares granted (in shares)		90,800
Share-based payment award, threshold, number of trading days | trading_day	45
Number of shares, forfeited (in shares)		12,600
Restricted stock | 2014 Management and Employee Market Based Awards
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share based compensation expense | $		$ 0.1		$ 0.1		$ 0.1	$ 0.8

Equity-Based Compensation - R54

Equity-Based Compensation - Restricted Stock Awards with Performance Conditions Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Unrecognized equity-based compensation	$ 15,110	$ 22,348	$ 15,110	$ 22,348
Restricted stock | Performance based awards
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share based compensation expense	900	$ 900	1,800	$ 1,900
Unrecognized equity-based compensation	$ 1,800		$ 1,800
Minimum | Restricted stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Percentage of target bonus potentially payable in restricted stock			100.00%
Maximum | Restricted stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Percentage of target bonus potentially payable in restricted stock			150.00%

Equity-Based Compensation - R55

Equity-Based Compensation - Restricted Stock Awards with Performance Conditions (Details) - $ / shares	3 Months Ended				6 Months Ended	12 Months Ended
	Jun. 30, 2017	Mar. 31, 2017	Jun. 30, 2016	Mar. 31, 2016	Jun. 30, 2017	Dec. 31, 2016	Dec. 31, 2015
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Restricted Shares Forfeited (in shares)			15,000
Restricted stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
ACTA Stock Price at Issuance (in dollars per share)	$ 9.66	$ 15.30	$ 13.33	$ 18.75
Restricted Shares Granted (in shares)	54,310	286,256	112,397	434,283
Restricted Shares Vested (in shares)	81,897	625,646	81,391	657,317
Restricted Shares Forfeited (in shares)		167,712	7,500	588,819
Actua 2015 Performance Plan | Restricted stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Percentage of Target Bonus Potentially Payable in Restricted Stock							150.00%
ACTA Stock Price at Issuance (in dollars per share)							$ 16.76
Restricted Shares Granted (in shares)							316,715
Performance Plan Achievement Percentage							83.00%
Restricted Shares Vested (in shares)							175,249
Restricted Shares Forfeited (in shares)							141,466
Actua 2016 Performance Plan | Restricted stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Percentage of Target Bonus Potentially Payable in Restricted Stock						100.00%
ACTA Stock Price at Issuance (in dollars per share)						$ 8.44
Restricted Shares Granted (in shares)						419,283
Performance Plan Achievement Percentage						60.00%
Restricted Shares Vested (in shares)						251,570
Restricted Shares Forfeited (in shares)						167,713
Actua 2017 Performance Plan | Restricted stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Percentage of Target Bonus Potentially Payable in Restricted Stock					100.00%
ACTA Stock Price at Issuance (in dollars per share)					$ 13.85
Restricted Shares Granted (in shares)					263,756

Equity-Based Compensation - R56

Equity-Based Compensation - Restricted Stock Award with Service Conditions Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended				3 Months Ended				6 Months Ended		12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2015	Feb. 28, 2014	Jun. 30, 2017	Mar. 31, 2017	Jun. 30, 2016	Mar. 31, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares, forfeited (in shares)							15,000
Unrecognized equity-based compensation	$ 15,110	$ 22,348			$ 15,110		$ 22,348		$ 15,110	$ 22,348
Restricted stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares granted (in shares)					54,310	286,256	112,397	434,283
Number of shares, vested (in shares)					81,897	625,646	81,391	657,317
Number of shares, forfeited (in shares)						167,712	7,500	588,819
Grant date fair value (in dollars per share)					$ 13.95	$ 13.85	$ 9.33	$ 8.44
Restricted stock | Vest on various anniversaries through 2021
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares granted (in shares)									86,200
Restricted stock | Second Amended and Restated Non-Management Director Compensation Plan (the Amended Director Plan)
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Equity-based compensation expected to be recognized in 2017									$ 4,400
Share based compensation expense					$ 2,200		$ 2,200		4,300	$ 4,400
Unrecognized equity-based compensation	6,700				6,700				6,700
Equity-based compensation expected to be recognized in 2018 through 2021									$ 2,300
Restricted stock | Employees and Executive Officers
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares granted (in shares)				1,377,500
Stock awards vesting period				4 years
Number of shares, vested (in shares)									339,375	344,375
Number of shares, forfeited (in shares)											10,000
Unrecognized equity-based compensation	$ 4,600				$ 4,600				$ 4,600
Equity-based compensation expected to be recognized in 2017									3,400
Equity-based compensation expected to be recognized in 2018									$ 1,200
Restricted stock | Non-Management Board of Directors | Second Amended and Restated Non-Management Director Compensation Plan (the Amended Director Plan)
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares granted (in shares)	54,310	72,397	140,416
Stock awards vesting period	1 year	1 year
Number of shares, vested (in shares)									109,902
Number of shares, forfeited (in shares)									514
Grant date fair value (in dollars per share)	$ 13.95	$ 9.02
Restricted stock | Non-Management Board of Directors | Second Amended and Restated Non-Management Director Compensation Plan (the Amended Director Plan) | Vested in equal increments from June 2017 through June 2018
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares granted (in shares)									30,000

Equity-Based Compensation - Act

Equity-Based Compensation - Activity with Respect to SARs (Detail) - SARs - $ / shares	3 Months Ended					6 Months Ended		12 Months Ended
	Jun. 30, 2017	Mar. 31, 2017	Jun. 30, 2016	Mar. 31, 2016	Jun. 30, 2015	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Number of Shares
Number of Shares, Issued and unvested as of beginning of period (in shares)	306,575	307,514	479,656	479,656		307,514	479,656	479,656
Number of Shares, Activity for the three months ended March 31, 2016 (in shares)	0			0
Number of Shares, Granted (in shares)			25,000
Number of Shares, Exercised (in shares)		(939)
Number of Shares, Issued and unvested as of end of period (in shares)	306,575	306,575	504,656	479,656		306,575	504,656	307,514
Weighted Average Base Price
Weighted Average Base Price, Outstanding as of beginning of period (in dollars per share)	$ 11.28	$ 11.28	$ 10.64	$ 10.64		$ 11.28	$ 10.64	$ 10.64
Weighted Average Base Price, Activity for the three months ended March 31, 2016 (in dollars per share)	0			0
Weighted Average Base Price, Granted (in dollars per share)			9.04
Weighted Average Base Price, Exercised (in dollars per share)		9.98
Weighted Average Base Price, Outstanding as of end of period (in dollars per share)	11.28	11.28	10.56	10.64		11.28	10.56	11.28
Weighted Average Grant Date Fair Value Per Share
Weighted Average Fair Value, Outstanding as of beginning of period (in dollars per share)	6.21	6.21	5.80	5.80		6.21	5.80	5.80
Weighted Average Fair Value, Activity for the three months ended March 31, 2016 (in dollars per share)	0			0
Weighted Average Fair Value, Granted (in dollars per share)			4.80
Weighted Average Fair Value, Exercised (in dollars per share)		5.33
Weighted Average Fair Value, Outstanding as of end of period (in dollars per share)	$ 6.21	$ 6.21	$ 5.75	$ 5.80		$ 6.21	$ 5.75	$ 6.21
Number of shares issued (in shares)		171	0	0	0	171	0
First anniversary of grant date
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock awards vesting period						4 years
Vesting percentage						25.00%
Vested ratably each month over the subsequent 36 months
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock awards vesting period						36 months
Vesting percentage						75.00%

Equity-Based Compensation - SAR

Equity-Based Compensation - SARs Outstanding (Detail) - SARs - USD ($) $ / shares in Units, $ in Thousands	6 Months Ended
	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of SARs outstanding (in shares)	306,575	306,575	307,514	504,656	479,656	479,656
Number of SARs exercisable (in shares)	287,094			477,791
Aggregate Intrinsic Value of SARs Outstanding as of June 30, 2017	$ 859			$ 100
$6.70 - $8.76
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Grant Price, lower range limit (in dollars per share)	$ 6.70
Grant Price, upper range limit (in dollars per share)	$ 8.76
Number of SARs outstanding (in shares)	29,950
Number of SARs exercisable (in shares)	29,950
Weighted Average Remaining Contractual Life of SARs Outstanding (in years)	1 year 2 months 23 days
Aggregate Intrinsic Value of SARs Outstanding as of June 30, 2017	$ 169
$9.02 - $9.25
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Grant Price, lower range limit (in dollars per share)	$ 9.02
Grant Price, upper range limit (in dollars per share)	$ 9.25
Number of SARs outstanding (in shares)	43,625
Number of SARs exercisable (in shares)	24,875
Weighted Average Remaining Contractual Life of SARs Outstanding (in years)	7 years 3 months
Aggregate Intrinsic Value of SARs Outstanding as of June 30, 2017	$ 215
$11.69 - $17.31
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Grant Price, lower range limit (in dollars per share)	$ 11.69
Grant Price, upper range limit (in dollars per share)	$ 17.31
Number of SARs outstanding (in shares)	233,000
Number of SARs exercisable (in shares)	232,269
Weighted Average Remaining Contractual Life of SARs Outstanding (in years)	3 years 9 months 7 days
Aggregate Intrinsic Value of SARs Outstanding as of June 30, 2017	$ 475

Equity-Based Compensation - S59

Equity-Based Compensation - SARs Additional Information (Detail) - SARs - USD ($) $ / shares in Units, $ in Thousands	Jun. 30, 2017	Jun. 30, 2016
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of SARs exercisable (in shares)	287,094	477,791
SARs exercisable weighted average price (in dollars per share)	$ 11.42	$ 10.61
Number of SARs expected to vest (in shares)	19,481
Aggregate intrinsic value of SARs outstanding	$ 859	$ 100

Equity-Based Compensation - Sto

Equity-Based Compensation - Stock Options Additional Information (Detail) - Stock Options - shares	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock awards vesting period	4 years
Stock options outstanding (in shares)	250	250
First anniversary of grant date
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting percentage	25.00%
Vested ratably each month over the subsequent 36 months
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock awards vesting period	36 months
Vesting percentage	75.00%

Equity-Based Compensation - S61

Equity-Based Compensation - SARs and Stock Options Fair Value Assumptions (Detail) - shares	3 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
SARs
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares granted (in shares)		25,000
Employees
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of stock options granted (in shares)	0	0
Employees | SARs
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares granted (in shares)	0	0

Equity-Based Compensation - The

Equity-Based Compensation - The Amended Director Plan Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions	1 Months Ended	3 Months Ended				6 Months Ended
	Jun. 30, 2015	Jun. 30, 2017	Mar. 31, 2017	Jun. 30, 2016	Mar. 31, 2016	Jun. 30, 2017	Jun. 30, 2016
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares, forfeited (in shares)				15,000
Restricted stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares, vested (in shares)		81,897	625,646	81,391	657,317
Number of shares granted (in shares)		54,310	286,256	112,397	434,283
Grant date fair value (in dollars per share)		$ 13.95	$ 13.85	$ 9.33	$ 8.44
Number of shares, forfeited (in shares)			167,712	7,500	588,819
Restricted stock | Non-Management Director Compensation Plan (the Director Plan)
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock awards vesting period						6 months
Restricted stock | Non Management Directors Director Plan, Retainer Fee, June 12, 2015 through June 12, 2016
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares granted (in shares)	50,416
Grant date fair value (in dollars per share)	$ 13.17
Restricted stock | Non Management Directors Director Plan, Triennial Service Awards
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares granted (in shares)	90,000
Grant date fair value (in dollars per share)	$ 13.17
Restricted stock | Non Management Directors Director Plan, Triennial Service Awards | Tranche one
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares granted (in shares)						60,000
Restricted stock | Non Management Directors Director Plan, Triennial Service Awards | Vested in equal increments from June 2017 through June 2018
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares granted (in shares)						30,000
Deferred Stock Units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share based compensation expense		$ 0.1		$ 0.1		$ 0.1	$ 0.2
Deferred Stock Units | Non-Management Director Compensation Plan (the Director Plan)
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of non-option shares, granted (in shares)						22,500
Number of shares, vested (in shares)		5,625	5,625	30,000
Deferred Stock Units | Non-Management Director Compensation Plan (the Director Plan) | Tranche one
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock awards vesting period						1 year
Number of shares, vested (in shares)						7,500
Deferred Stock Units | Non-Management Director Compensation Plan (the Director Plan) | Vested in equal increments from June 2017 through June 2018
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock awards vesting period						2 years
Number of shares, vested (in shares)						15,000
Deferred Stock Units | Prior Director Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of non-option shares, granted (in shares)						7,500
Deferred Stock Units | Non Management Directors Director Plan, Triennial Service Awards
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares granted (in shares)	90,000
Grant date fair value (in dollars per share)	$ 13.17
Deferred Stock Units | Non Management Directors Director Plan, Triennial Service Awards | Tranche one
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares granted (in shares)						52,500
Number of shares, forfeited (in shares)						15,000
Deferred Stock Units | Non Management Directors Director Plan, Triennial Service Awards | Vested in equal increments from June 2017 through June 2018
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares granted (in shares)						22,500

Equity-Based Compensation - A63

Equity-Based Compensation - Activity related to DSUs (Detail) - $ / shares	3 Months Ended				6 Months Ended		12 Months Ended
	Jun. 30, 2017	Mar. 31, 2017	Jun. 30, 2016	Mar. 31, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Number of Shares
Number of Shares, Forfeited (in shares)			(15,000)
Non-Management Director Compensation Plan (the Director Plan) | Deferred Stock Units
Number of Shares
Number of Shares, Issued and unvested as of beginning of period (in shares)	28,125	33,750	90,000	90,000	33,750	90,000	90,000
Number of Shares, Activity for the three months ended March 31, 2016 (in shares)				0
Number of Shares, Vested (in shares)	(5,625)	(5,625)	(30,000)
Number of Shares, Issued and unvested as of end of period (in shares)	22,500	28,125	45,000	90,000	22,500	45,000	33,750
Weighted Average Grant Date Fair Value Per Share
Weighted Average Grant Date Fair Value, Issued and unvested as of beginning of period (in dollars per share)	$ 13.17	$ 13.17	$ 13.17	$ 13.17	$ 13.17	$ 13.17	$ 13.17
Weighted Average Grant Date Fair Value, Activity for the three months ended March 31, 2016 (in dollars per share)				0
Weighted Average Grant Date Fair Value, Vested (in dollars per share)	13.17	13.17	13.17
Weighted Average Grant Date Fair Value, Forfeited (in dollars per share)			13.17
Weighted Average Grant Date Fair Value, Issued and unvested as of end of period (in dollars per share)	$ 13.17	$ 13.17	$ 13.17	$ 13.17	$ 13.17	$ 13.17	$ 13.17

Equity-Based Compensation - Con

Equity-Based Compensation - Consolidated Businesses (Detail) - Stock Options - USD ($) $ in Millions	Nov. 03, 2014	Jun. 30, 2017
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock awards vesting period		4 years
FolioDynamix
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock options granted in the period, fair value	$ 5.1
First anniversary of grant date
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting percentage		25.00%
Vested ratably each month over the subsequent 36 months
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock awards vesting period		36 months
Vesting percentage		75.00%
Vested on each Anniversary
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting percentage		25.00%
Vested in November 2015 | FolioDynamix
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting percentage	25.00%
Vested ratably each month through November 2018 | FolioDynamix
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting percentage	75.00%

Equity-Based Compensation - Ass

Equity-Based Compensation - Assumptions Used to Determine Fair Value of Stock Options Granted (Detail) - Stock Options	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Expected volatility	50.00%
Expected volatility rate, minimum		45.00%
Expected volatility rate, maximum		50.00%
Average expected life of stock options (in years)	6 years 3 months
Risk-free interest rate	2.07%
Risk free interest rate, minimum		1.42%
Risk free interest rate, maximum		1.49%
Dividend yield	0.00%	0.00%
Minimum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Average expected life of stock options (in years)		5 years 11 months 4 days
Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Average expected life of stock options (in years)		6 years 3 months

Other Income (Loss), Net - Sche

Other Income (Loss), Net - Schedule of Other Income (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Other Income and Expenses [Abstract]
Gain (loss) on sales/distributions of ownership interests	$ 2,697	$ 0	$ 3,654	$ 46
Other	(139)	(15)	(229)	(151)
Total other income (loss), net	$ 2,558	$ (15)	$ 3,425	$ (105)

Other Income (Loss), Net - Addi

Other Income (Loss), Net - Additional Information (Detail) - Anthem - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from sales / distributions of ownership interests	$ 2,700	$ 3,700
Gain recognized from investment	$ 1,000	$ 30

Income Taxes (Detail)

Income Taxes (Detail) - USD ($)	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Income Tax Disclosure [Abstract]
Income tax benefit from continuing operations	$ 0	$ 0

Net Income (Loss) Per Share - C

Net Income (Loss) Per Share - Calculations of Net Income (Loss) Per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Basic and Diluted:
Net income (loss) from continuing operations	$ (6,863)	$ (10,763)	$ (16,533)	$ (23,123)
Net income (loss) from discontinued operations	0	(1,978)	0	(3,949)
Net income (loss) attributable to Actua Corporation	$ (6,863)	$ (12,741)	$ (16,533)	$ (27,072)
Basic and Diluted:
Net income (loss) from continuing operations per share (in dollars per share)	$ (0.22)	$ (0.30)	$ (0.52)	$ (0.62)
Net income (loss) from discontinued operations per share (in dollars per share)	0	(0.05)	0	(0.11)
Net income (loss) (in dollars per share)	$ (0.22)	$ (0.35)	$ (0.52)	$ (0.73)
Shares used in computation of basic and diluted income (loss) per share (in shares)	31,267	36,760	31,687	37,027

Net Income (Loss) Per Share - P

Net Income (Loss) Per Share - Potentially Dilutive Securities Not Included in Computation of Diluted Net Loss Per Share (Detail) - $ / shares shares in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
DSUs
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Units, potentially dilutive securities not included in the computation of diluted net loss per share (in shares)	23	45	23	45
Weighted Average Price per Share, anti-dilutive securities excluded from computation of earnings per share (in dollars per share)	$ 0	$ 0	$ 0	$ 0
SARs
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Units, potentially dilutive securities not included in the computation of diluted net loss per share (in shares)	307	505	307	505
Weighted Average Price per Share, anti-dilutive securities excluded from computation of earnings per share (in dollars per share)	$ 11.28	$ 10.56	$ 11.28	$ 10.56
Restricted stock
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Units, potentially dilutive securities not included in the computation of diluted net loss per share (in shares)	2,109	2,692	2,109	2,692
Weighted Average Price per Share, anti-dilutive securities excluded from computation of earnings per share (in dollars per share)	$ 0	$ 0	$ 0	$ 0

Segment Information - Additiona

Segment Information - Additional Information (Detail) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017USD ($)business	Jun. 30, 2016USD ($)	Jun. 30, 2017USD ($)businesssegment	Jun. 30, 2016USD ($)
Segment Reporting Information [Line Items]
Number of reporting segments | segment			2
Number businesses owned | business	3		3
Revenue	$ 31,189	$ 26,854	$ 61,696	$ 52,040
Europe and Canada
Segment Reporting Information [Line Items]
Revenue	$ 1,300	$ 1,100	$ 2,600	$ 2,000

Segment Information - Summary o

Segment Information - Summary of Selected Information Related to Segments (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Segment Reporting Information [Line Items]
Revenue	$ 31,189	$ 26,854	$ 61,696	$ 52,040
Net income (loss) attributable to Actua Corporation	(6,863)	(12,741)	(16,533)	(27,072)
Segment Reporting Information, Profit (Loss) [Abstract]
General and administrative	11,786	11,372	24,718	23,698
Impairment related and other expense	310	117	670	348
Other income (loss), net (refer to Note 11)	2,558	(15)	3,425	(105)
Interest income	142	39	297	87
Net (income) loss attributable to the noncontrolling interest	463	817	945	1,869
Net income (loss) attributable to Actua Corporation	(6,863)	(12,741)	(16,533)	(27,072)
Assets	414,639		414,639		$ 453,718
Operating Segments
Segment Reporting Information [Line Items]
Revenue	31,189	26,854	61,696	52,040
Net income (loss) attributable to Actua Corporation	(4,004)	(5,647)	(8,108)	(12,087)
Segment Reporting Information, Profit (Loss) [Abstract]
Net income (loss) attributable to Actua Corporation	(4,004)	(5,647)	(8,108)	(12,087)
Assets	367,704		367,704		375,772
Operating Segments | Vertical Cloud
Segment Reporting Information [Line Items]
Revenue	31,189	26,854	61,696	52,040
Net income (loss) attributable to Actua Corporation	(4,004)	(5,647)	(8,108)	(12,087)
Segment Reporting Information, Profit (Loss) [Abstract]
Net income (loss) attributable to Actua Corporation	(4,004)	(5,647)	(8,108)	(12,087)
Assets	350,231		350,231		358,522
Operating Segments | Vertical Cloud (Venture)
Segment Reporting Information [Line Items]
Revenue	0	0	0	0
Net income (loss) attributable to Actua Corporation	0	0	0	0
Segment Reporting Information, Profit (Loss) [Abstract]
Net income (loss) attributable to Actua Corporation	0	0	0	0
Assets	17,473		17,473		17,250
Dispositions
Segment Reporting Information [Line Items]
Revenue	0	0	0	0
Net income (loss) attributable to Actua Corporation	0	(1,978)	0	(3,949)
Segment Reporting Information, Profit (Loss) [Abstract]
Net income (loss) attributable to Actua Corporation	0	(1,978)	0	(3,949)
Assets	0		0		0
Other
Segment Reporting Information [Line Items]
Revenue	0	0	0	0
Net income (loss) attributable to Actua Corporation	(2,859)	(5,116)	(8,425)	(11,036)	(8,425)
Segment Reporting Information, Profit (Loss) [Abstract]
General and administrative	(6,147)	(5,818)		(12,763)	13,298
Impairment related and other expense		(45)	0	(45)	0
Other income (loss), net (refer to Note 11)	2,697	0		46	3,654
Interest income	128	31		68	274
Net (income) loss attributable to the noncontrolling interest	463	716		(1,658)	945
Net income (loss) attributable to Actua Corporation	(2,859)	$ (5,116)	(8,425)	$ (11,036)	(8,425)
Assets	$ 46,935		$ 46,935		$ 77,946

Contingencies (Detail)

Contingencies (Detail) $ in Millions	12 Months Ended		24 Months Ended
	Dec. 31, 2009interest_plan	Dec. 31, 2008interest_plan	Dec. 31, 2009interest_plan	Jun. 30, 2017USD ($)	Oct. 31, 2016USD ($)
Loss Contingencies [Line Items]
Number of carried interest plans | interest_plan	1	1	2
Carried interest rate			15.00%
Plan investment deployed amount				$ 76.6
SAS
Loss Contingencies [Line Items]
Contingent consideration liability				$ 8.6	$ 7.9