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Related Party Transactions (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
	Aug. 26, 2016	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Related Party Transaction [Line Items]
Operating lease right-of-use assets		$ 28,108		$ 28,108		$ 32,585
Estimated termination payment, tax receivable agreement		$ 57,600		$ 57,600
Discount rate, tax receivable agreement liability		4.23%		4.23%
Affiliated Entity
Related Party Transaction [Line Items]
Rent expense		$ 900	$ 600	$ 2,300	$ 2,000
Operating lease right-of-use assets		4,000		4,000
Operating lease liabilities		$ 5,500		$ 5,500
Affiliated Entity | Mosing Holdings
Related Party Transaction [Line Items]
Percentage of tax benefits realized payable, tax receivable agreement	85.00%
Percentage retained under tax receivable agreement	15.00%
Cumulative deficit, period, tax receivable agreement				36 months
Long-Term Treasury Rate | Affiliated Entity | Mosing Holdings
Related Party Transaction [Line Items]
Basis spread on variable rate, tax receivable agreement	3.00%

X

- Definition

Cumulative Earnings (Deficit), Period

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- Definition

Percentage of Tax Benefits Realized Payable Under Tax Receivable Agreement

+ References

No definition available.

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- Definition

Percentage of Tax Benefits Retained Under Tax Receivable Agreement

+ References

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- Definition

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+ References

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- Definition

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- Definition

Tax Receivable Agreement, Liability, Estimated Termination Payment

+ References

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X

- Definition

Amount of operating lease expense. Excludes sublease income.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 4
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121603541&loc=SL77918638-209977

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X

- Definition

Present value of lessee's discounted obligation for lease payments from operating lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121603541&loc=SL77918627-209977

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- Definition

Amount of lessee's right to use underlying asset under operating lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=121603541&loc=SL77918627-209977

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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.

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