Summary of Significant Accounting Policies - Schedule of Changes in Contractual Allowance (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Changes In The Contractual Allowance
Balance, beginning of period	$ 15,433	$ 9,205	$ 9,205
Add: provision for contractual allowances	4,592	3,396	15,518
Less: realized contractual adjustments	(3,477)	(1,435)	(9,290)
Balance, end of period	$ 16,548	$ 11,166	$ 15,433