v3.8.0.1

Business Combination - Estimated fair values of the assets acquired and liabilities assumed (Details) - USD ($) $ / shares in Units, $ in Thousands |  | 12 Months Ended |
--- | --- | --- | ---
Jul. 01, 2017 | Dec. 31, 2017 | Dec. 31, 2016
Acquisition |  |  |
Common stock, par value (in dollars per share) |  | $ 0.001 | $ 0.001
Goodwill |  | $ 71,988 |
GetSmarter |  |  |
Acquisition |  |  |
Cash consideration | $ 98,700 |  |
Potential earn-out payment | $ 20,000 |  |
Common stock, par value (in dollars per share) | $ 0.001 |  |
Cash and Cash Equivalents | $ 1,584 |  |
Current assets | 3,676 |  |
Property and equipment, net | 479 |  |
Goodwill | 68,172 |  |
Current Liabilities | (9,031) |  |
Non-Current Liabilities | (10,894) |  |
Total | $ 98,686 |  |
Decrease in goodwill related to contingent consideration |  | $ 2,000 |
GetSmarter | Minimum |  |  |
Acquisition |  |  |
Vesting period (in years) | 2 years |  |
GetSmarter | Maximum |  |  |
Acquisition |  |  |
Vesting period (in years) | 4 years |  |
Capitalized technology | GetSmarter |  |  |
Acquisition |  |  |
Amortizable intangible assets | $ 2,800 |  |
Capitalized content development | GetSmarter |  |  |
Acquisition |  |  |
Amortizable intangible assets | 5,000 |  |
University client relationships | GetSmarter |  |  |
Acquisition |  |  |
Amortizable intangible assets | 28,000 |  |
Trade names and domain names | GetSmarter |  |  |
Acquisition |  |  |
Amortizable intangible assets | $ 8,900 |  |

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- Definition For contingent consideration arrangements recognized in connection with a business combination, this element represents an estimate of the high-end of the potential range (undiscounted) of the consideration which may be paid. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (c)(3) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479 + Details
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- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions, acquired at the acquisition date. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84161108&loc=d3e4845-128472 + Details
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- Definition Amount of assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer, acquired at the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84161108&loc=d3e4845-128472 + Details
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- Definition Amount of liabilities due within one year or within the normal operating cycle, if longer, assumed at the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84161108&loc=d3e4845-128472 + Details
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- Definition The amount of identifiable intangible assets recognized as of the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 55 -Paragraph 37 -URI http://asc.fasb.org/extlink&oid=84160947&loc=d3e2207-128464 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84161108&loc=d3e4845-128472 + Details
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- Definition The amount of property, plant, and equipment recognized as of the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84161108&loc=d3e4845-128472 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 55 -Paragraph 37 -URI http://asc.fasb.org/extlink&oid=84160947&loc=d3e2207-128464 + Details
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