Accounts Receivable

9 Months Ended

Sep. 30, 2019

Accounts and Financing Receivable, after Allowance for Credit Loss [Abstract]

Accounts Receivable

ACCOUNTS RECEIVABLE

Accounts receivable consist of the following:

	As of
	September 30, 2019		December 31, 2018
(in thousands)
Receivables from contracts with customers, less doubtful accounts of $13,060 and $14,775	$	582,944	$	538,021
Other receivables	29,197		44,259
	$	612,141	$	582,280

Bad debt expense was $0.4 million and $1.8 million for the three months ended September 30, 2019 and 2018, respectively; and $0.5 million and $7.9 million for the nine months ended September 30, 2019 and 2018, respectively.