Consolidated Statement of Changes in Members' Equity (Parenthetical) $ in Millions	3 Months Ended
	Mar. 31, 2020 USD ($)
Statement of Stockholders' Equity [Abstract]
Income tax expense (benefit)	$ 4.0	[1]

[1] Includes a tax benefit of $4.0 million for the three months ended March 31, 2020.