Annual Subscription Fee, Average Operating Income Calculation Period

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- Definition

Annual Subscription Fee, Percentage of Revenue for Calculation

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- Definition

[Line Items] for Revenue, Initial Application Period Cumulative Effect Transition [Table]

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Amount of deferred revenue as of balance sheet date. Deferred revenue represents collections of cash or other assets related to a revenue producing activity for which revenue has not yet been recognized. Generally, an entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit.

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Amount of cash inflow (outflow) from investing activities, including discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets.

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- Definition

Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.

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- Definition

The cumulative amount of the reporting entity's undistributed earnings or deficit.

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Basis of Presentation and Significant Accounting Policies - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017	Jan. 01, 2016
Accounting Policies [Abstract]
Revenue for calculation of annual subscription fees (as a percent)	5.00%
Average operating income calculation period for annual subscription fees	3 years
Unbilled receivables	$ 56,383		$ 48,679	$ 54,200
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Cumulative effect recognized on initial application of the new guidance	68,390		70,808
Net cash provided by operating activities	33,167	$ 71,244
Net cash used in investing activities	8,787	5,783
Net cash used in financing activities	$ (4,289)	(7,131)
Difference between Revenue Guidance in Effect before and after Topic 606 \| Accounting Standards Update 2014-09
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Cumulative effect recognized on initial application of the new guidance			$ 31,397	$ 44,800
Net cash used in investing activities		$ 4,000