Segment Information (Tables)

3 Months Ended

Mar. 31, 2016

Segment Reporting [Abstract]

Summary of Segment Information

	Three Months Ended March 31,
	2016			2015
	(in thousands)
Net sales:
Automotive	$	1,932,178		$	1,898,508
Industrial		1,152,627			1,181,823
Office products		476,654			490,298
Electrical/electronic materials		175,847			182,046
Other		(19,039	)		(16,624	)
Total net sales	$	3,718,267		$	3,736,051
Operating profit:
Automotive	$	153,710		$	150,641
Industrial		81,833			87,769
Office products		34,204			36,524
Electrical/electronic materials		14,841			15,463
Total operating profit		284,588			290,397
Interest expense, net		(4,822	)		(5,327	)
Other intangible assets amortization		(8,760	)		(8,604	)
Other, net		(24,361	)		(25,085	)
Income before income taxes	$	246,645		$	251,381