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Fair Value Measurements - Fair Values of Financial Instruments Measured On Recurring Basis (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investment in Consensus	$ 229,200
Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investment in Consensus	229,200
Total assets measured at fair value	373,455	$ 11,076
Contingent consideration	5,775	5,022
Long-term debt	1,345,311	1,960,527
Total liabilities measured at fair value	1,351,086	1,965,549
Carrying Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investment in Consensus	229,200
Total assets measured at fair value	373,455	11,076
Contingent consideration	5,775	5,022
Long-term debt		1,579,021
Total liabilities measured at fair value	1,096,402	1,584,043
Money market and other funds | Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Money market and other funds	144,255	10,413
Money market and other funds | Carrying Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Money market and other funds	144,255	10,413
Corporate debt securities | Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Corporate debt securities		663
Corporate debt securities | Carrying Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Corporate debt securities		663
Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt	1,300,000
Level 1 | Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investment in Consensus	229,200
Total assets measured at fair value	373,455	10,413
Contingent consideration	0	0
Long-term debt	1,345,311	1,960,527
Total liabilities measured at fair value	1,345,311	1,960,527
Level 1 | Money market and other funds | Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Money market and other funds	144,255	10,413
Level 1 | Corporate debt securities | Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Corporate debt securities		0
Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt		2,000,000
Level 2 | Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investment in Consensus	0
Total assets measured at fair value	0	663
Contingent consideration	0	0
Long-term debt	0	0
Total liabilities measured at fair value	0	0
Level 2 | Money market and other funds | Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Money market and other funds	0	0
Level 2 | Corporate debt securities | Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Corporate debt securities		663
Level 3 | Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investment in Consensus	0
Total assets measured at fair value	0	0
Contingent consideration	5,775	5,022
Long-term debt	0	0
Total liabilities measured at fair value	5,775	5,022
Level 3 | Money market and other funds | Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Money market and other funds	$ 0	0
Level 3 | Corporate debt securities | Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Corporate debt securities		$ 0

X

- Definition

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
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- Definition

Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. 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

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- Definition

Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 45
-Paragraph 1A
-URI http://asc.fasb.org/extlink&oid=123594786&loc=SL75136599-209740

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+ References

No definition available.

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- Definition

Fair value portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
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The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

+ References

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