Accounts Receivable, Net (Tables)

12 Months Ended

Dec. 31, 2016

Receivables [Abstract]

Schedule of Accounts Receivable Net

(add 000)	2016			2015
Customer receivables	$	456,508		$	408,551
Other current receivables		7,668			9,310
		464,176			417,861
Less allowances		(6,266	)		(6,940	)
Total	$	457,910		$	410,921