CORRECTION OF IMMATERIAL ERROR - Narrative (Details) - Merton - Senior Secured Notes - Securities Purchase Agreement - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Debt instrument, upfront fee, percent	1.25%
Debt instrument, face amount	$ 365.0
Lender fees		$ 4.6

Face (par) amount of debt instrument at time of issuance.

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Name:	us-gaap_DebtInstrumentFaceAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant