Accounts Receivable (Tables)

6 Months Ended

Jun. 30, 2019

Receivables [Abstract]

Summary of Accounts Receivable

(table only in thousands)	June 30, 2019			December 31, 2018
Contract receivables	$	50,458		$	48,826
Trade receivables		12,375			7,296
Allowance for doubtful accounts		(2,796	)		(2,897	)
Total accounts receivable	$	60,037		$	53,225