Accounts Receivable (Tables)

9 Months Ended

Sep. 30, 2019

Receivables [Abstract]

Schedule of Accounts Receivable

As of September 30, 2019 and December 31, 2018, Accounts receivable consisted of the following:

(in thousands)	September 30, 2019	December 31, 2018
Trade and other accounts receivable	$210,919	$211,244
Bank promissory notes	16,062	19,269
Allowance for doubtful accounts	(2,749)	(7,337)
Accounts receivable, net	$224,232	$223,176

Schedule of Contract Receivables

As of September 30, 2019 and December 31, 2018, Noncurrent receivables consisted of the following:

(in thousands)	September 30, 2019	December 31, 2018
Noncurrent receivables	$45,699	$45,061