Summary of Significant Accounting Policies - Share-Based Compensation (Details)		12 Months Ended
Jun. 15, 2018	Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	4 years
Amendment And Restatement Of The 2006 Omnibus Award Plan (2015 Plan)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance based percentage		100.00%
Amendment And Restatement Of The 2006 Omnibus Award Plan (2015 Plan) \| Revenue Based PRSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance based percentage		50.00%
Vesting period		3 years
Amendment And Restatement Of The 2006 Omnibus Award Plan (2015 Plan) \| Market Condition Based PRSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance based percentage		50.00%
Vesting period		3 years
Amendment And Restatement Of The 2006 Omnibus Award Plan (2015 Plan) \| Market Condition Based PRSUs \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of target shares an employee can earn		200.00%

Percentage Of Performance Criteria Achieved And Shares Vested

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- Definition

Share Based Compensation Arrangement By Share Based Payment Award Percentage Of Target Shares Earned

+ References

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- Definition

Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

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- Definition

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.

+ References

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