Summary of Significant Accounting Policies - Schedule of Changes in Allowance for Doubtful Accounts (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019	Dec. 31, 2018
Change In The Allowance For Doubtful Accounts
Balance, beginning of period	$ 9,049	$ 7,296	$ 7,296
Add: provision for doubtful accounts	4,592	2,015	9,129
Less: write-offs, net of recoveries and other adjustments	(2,262)	(1,346)	(7,376)
Balance, end of period	11,840	7,965	9,049
Accounting Standards Codification 326 cumulative effect adjustment upon adoption	$ 124,977	$ 47,648	$ 135,409	$ 52,137