Revenue Recognition - Narrative (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Revenue from Contract with Customer [Abstract]
Income related to FLA arrangements with Parent	$ 800,000	$ 2,600,000	$ 2,300,000	$ 5,100,000
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Income related to FLA arrangements with Parent	800,000	2,600,000	2,300,000	5,100,000
Related parties	30,700,000	27,900,000		57,300,000
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Income related to FLA arrangements with Parent	800,000	2,600,000	2,300,000	5,100,000
Disaggregation of Revenue [Line Items]
Income related to FLA arrangements with Parent	$ 800,000	$ 2,600,000	$ 2,300,000	$ 5,100,000