Acquisitions - 2019 Acquisitions (Details) - Thinkful, Inc - USD ($) $ in Thousands		12 Months Ended
Oct. 01, 2019	Dec. 31, 2019	Dec. 31, 2018
Business Acquisition [Line Items]
Total fair value of purchase consideration	$ 79,200
Escrow	9,000
Contingent consideration arrangements, range of outcomes, value, high	$ 20,000
Contingent purchase consideration, cash		$ 3,000
Acquisition related expenses		1,000
Consolidated net loss attributed to acquiree since acquisition date		8,600
Pro forma net income loss		$ 25,000	$ 38,600

Business Combination, Consideration Transferred, Escrow

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.

+ References

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This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

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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.

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Amount of liability recognized arising from contingent consideration in a business combination.

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This element represents the amount of earnings or loss of the acquiree since the acquisition date included in the consolidated income statement for the reporting period.

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Amount recognized for assets, including goodwill, in excess of (less than) the aggregate liabilities assumed.

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