Accounts Receivable (Tables)

9 Months Ended

Sep. 30, 2015

Receivables [Abstract]

Summary of Accounts Receivable

(Table only in thousands)	September 30, 2015			December 31, 2014
Trade receivables	$	12,843		$	15,875
Contract receivables		88,883			43,218
Allowance for doubtful accounts		(968	)		(699	)
	$	100,758		$	58,394