Impairment and Credit Losses - Summary of Credit Loss Allowance (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2020
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance at January 1, 2020		$ 5,635
Loss provision for receivables	$ 73,300	168,858
Bad debt write-offs		(91,142)
Balance at June 30, 2020	$ 83,351	$ 83,351