Business Combination - Purchase Consideration (Details) - USD ($) $ in Thousands		2 Months Ended	3 Months Ended			5 Months Ended	10 Months Ended	12 Months Ended	15 Months Ended
	Nov. 14, 2019	Dec. 31, 2019	Mar. 31, 2020	Mar. 31, 2019	[1]	Mar. 31, 2020	Nov. 14, 2019	Dec. 31, 2018	Mar. 31, 2020
Business Acquisition [Line Items]
Financial Designation, Predecessor and Successor [Fixed List]		Successor	Successor	Predecessor			Predecessor	Predecessor
Purchased Goodwill, Income Tax Amortization Period			15 years
Useful economic lives			3 years
Settlement made for termination of referral agreements			$ 10,000
Settlement made in the form of cash			7,000
Settlement made in the form of common stock			3,000
Customer relationships
Business Acquisition [Line Items]
Allocation of the preliminary fair value	$ 6,000		1,000			$ 1,000	$ 6,000		$ 1,000
Goodwill, Period Increase (Decrease), Total			$ 5,000
Customer relationships | Maximum
Business Acquisition [Line Items]
Useful economic lives	5 years
Customer relationships | Minimum
Business Acquisition [Line Items]
Useful economic lives	2 years
Trinity
Business Acquisition [Line Items]
Allocation of the preliminary fair value	$ 1,000						1,000
Transaction costs						$ 400	$ 25,800		$ 26,200

[1] Predecessor periods are combined as disclosed in Note 1.