Business Segment and Geographic Information - Revenue and Long-lived Assets by Geographic Region (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Business Segment and Geographic Information
Financial Designation, Predecessor and Successor [Fixed List]		Predecessor		Predecessor
Gross revenues	$ 200,981	$ 165,253	$ 578,258	$ 505,771
Contingent consideration		2,537		(26,830)
Net revenue	200,981	167,790	578,258	478,941
Long-lived assets	4,240,072		4,240,072		$ 4,284,355
U.S.
Business Segment and Geographic Information
Gross revenues	126,599	106,982	368,689	324,304
Long-lived assets	4,227,002		4,227,002		4,276,568
International
Business Segment and Geographic Information
Gross revenues	74,382	$ 58,271	209,569	$ 181,467
Long-lived assets	$ 13,070		$ 13,070		$ 7,787

Contingent consideration to related parties.

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- Definition

Indicates designation of financial information when substantially all business or separately identifiable line of business transfers from one entity to another entity. Acceptable values are "Predecessor" and "Successor".

+ References

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Long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets.

+ References

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- Definition

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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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

No definition available.

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