Investments in Other Entities — Equity Method - Summarized Balance Sheets and Statements of Income (Details) - USD ($) $ in Thousands	3 Months Ended		4 Months Ended	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Apr. 30, 2020	Jun. 30, 2020	Jun. 30, 2019	Mar. 31, 2020	Dec. 31, 2019	Mar. 31, 2019	Dec. 31, 2018
Assets
Cash and cash equivalents	$ 152,441	$ 52,726		$ 152,441	$ 52,726		$ 103,189
Receivables, net	17,588			17,588			11,004
Loan receivable	6,425			6,425			6,425
Restricted cash	0			0			75
Property and equipment, net	11,485			11,485			12,130
Total assets	833,217			833,217			728,713
Liabilities and Stockholders’ (Deficit) Equity
Current liabilities	152,507			152,507			105,423
Stockholders’ deficit	207,848	186,089		207,848	186,089	$ 197,961	192,335	$ 182,377	$ 181,544
Total liabilities and stockholders’ deficit	833,217			833,217			728,713
Statements of Operations
Revenue	165,169	130,050		330,274	225,806
Expenses	152,263	115,322		313,003	214,385
Income from operations	12,906	14,728		17,271	11,421
Other income	1,282	24		1,384	211
Income before benefit from income taxes	112,859	14,873		117,441	11,015
Benefit from income taxes	31,858	4,209		33,453	2,801
Net income	81,001	$ 10,664		83,988	8,214
LaSalle Medical Associates
Assets
Cash and cash equivalents	2,852			2,852			6,345
Receivables, net	6,751			6,751			5,124
Other current assets	880			880			3,526
Loan receivable	2,250			2,250			2,250
Restricted cash	688			688			683
Total assets	13,421			13,421			17,928
Liabilities and Stockholders’ (Deficit) Equity
Current liabilities	20,735			20,735			23,530
Stockholders’ deficit	(7,314)			(7,314)			(5,602)
Total liabilities and stockholders’ deficit	13,421			13,421			17,928
Statements of Operations
Revenue				92,113	93,434
Expenses				93,680	102,845
Net income				(1,567)	(9,411)
513 W. College LLC
Assets
Cash and cash equivalents	126			126			139
Other current assets	0			0			17
Other assets	70			70			70
Property and equipment, net	33,697			33,697			33,581
Total assets	33,893			33,893			33,807
Liabilities and Stockholders’ (Deficit) Equity
Current liabilities	1,109			1,109			1,062
Stockholders’ deficit	32,784			32,784			32,745
Total liabilities and stockholders’ deficit	$ 33,893			33,893			33,807
Statements of Operations
Revenue				0	0
Expenses				579	538
Income from operations				(579)	(538)
Other income				21	385
Net income				$ (558)	(153)
Universal Care, Inc.
Assets
Cash and cash equivalents							33,890
Receivables, net							63,843
Other current assets							38,280
Loan receivable							882
Restricted cash							4,021
Total assets							140,916
Liabilities and Stockholders’ (Deficit) Equity
Current liabilities							128,330
Other liabilities							33,133
Stockholders’ deficit							(20,547)
Total liabilities and stockholders’ deficit							$ 140,916
Statements of Operations
Revenue			$ 195,308		247,517
Expenses			189,028		239,389
Income before benefit from income taxes			6,280		8,128
Benefit from income taxes			0		(3,167)
Net income			$ 6,280		$ 11,295