Equity-Based Compensation - PSU awards (Details) $ / shares in Units, $ in Millions	3 Months Ended
Mar. 31, 2020 USD ($) tranche $ / shares shares
Additional disclosures
Cash awards granted	$ 3.3
Number of tranches \| tranche	3
Cash awards accrued in other liabilities	$ 0.6
Performance share unit awards
Number of units
Total awarded and unvested at the end of the period (in shares) \| shares	2,537,283
Weighted average grant date fair value
Total awarded and unvested at the end of the period (in dollars per share) \| $ / shares	$ 16.74
Additional disclosures
Additional equity compensation to be recognized over the remaining period	$ 14.0
Weighted average period for recognizing unrecognized stock-based compensation expense	1 year 7 months 6 days

Amount of accrual for cash awards granted.

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Represents the number of tranches.

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Amount of commitment made to pay deferred cash remuneration.

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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ 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
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Amount of cost to be recognized for nonvested award under share-based payment arrangement. Excludes share and unit options.

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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
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-Paragraph 2
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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

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