CONDENSED CONSOLIDATED BALANCE SHEETS (parenthetical) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Statement of Financial Position [Abstract]
Allowance for doubtful accounts receivable, current	$ 59,861	$ 44,337
Preferred Stock, Shares Authorized	250,000	250,000
Preferred Stock, Par or Stated Value Per Share	$ 0.01	$ 0.01
Preferred Stock, Shares Issued	0	0
Preferred Stock, Shares Outstanding	0	0
Common stock authorized (in shares)	3,999,000,000	3,999,000,000
Common stock par value (in dollars per share)	$ 0.01	$ 0.01
Common stock issued (in shares)	770,147,804	753,622,044
Common stock outstanding (in shares)	770,147,804	753,622,044