Accounts Receivable, Net (Tables)

12 Months Ended

Dec. 31, 2018

Receivables [Abstract]

Schedule of Accounts Receivable Net

December 31
(add 000)	2018			2017
Customer receivables	$	514,094		$	480,073
Other current receivables		12,535			9,557
		526,629			489,630
Less: Allowances		(3,353	)		(2,390	)
Total	$	523,276		$	487,240