Industry Segments and Geographic Area Information (Tables)

12 Months Ended

Dec. 31, 2019

Segment Reporting [Abstract]

Summary of Industry Segment Data

INDUSTRY SEGMENT DATA

	2019			2018			2017
Net Sales:
Electrical	$	2,625.7		$	2,660.6		$	2,532.8
Power	1,965.3			1,821.1			1,136.0
TOTAL NET SALES	$	4,591.0		$	4,481.7		$	3,668.8
Operating Income:
Electrical	$	320.1		$	320.8		$	294.0
Power	276.5			236.1			224.8
Operating Income	$	596.6		$	556.9		$	518.8
Gain on disposition of business (Note 3)	21.7			—			—
Multi-employer pension charge (Note 15)	(8.5		)	—			—
Interest expense	(69.4		)	(72.4		)	(44.9		)
Loss on extinguishment of debt	—			—			(10.1		)
Investment income and other expense, net	(19.9		)	(17.5		)	(20.7		)
INCOME BEFORE INCOME TAXES	$	520.5		$	467.0		$	443.1
Assets:
Electrical	$	2,197.8		$	2,228.5		$	2,344.7
Power	2,401.3			2,395.8			1,102.2
General Corporate	303.9			247.8			273.7
TOTAL ASSETS	$	4,903.0		$	4,872.1		$	3,720.6
Capital Expenditures:
Electrical	$	45.8		$	53.0		$	48.0
Power	45.4			36.8			29.0
General Corporate	2.7			6.4			2.7
TOTAL CAPITAL EXPENDITURES	$	93.9		$	96.2		$	79.7
Depreciation and Amortization:
Electrical	$	65.0		$	61.4		$	64.7
Power	86.0			87.0			33.5
TOTAL DEPRECIATION AND AMORTIZATION	$	151.0		$	148.4		$	98.2

Summary of Geographic Area Data

GEOGRAPHIC AREA DATA

	2019		2018		2017
Net Sales:
United States	$	4,190.5	$	4,040.6	$	3,280.9
International	400.5		441.1		387.9
TOTAL NET SALES	$	4,591.0	$	4,481.7	$	3,668.8
Operating Income:
United States	$	529.7	$	478.0	$	435.8
International	66.9		78.9		83.0
TOTAL OPERATING INCOME	$	596.6	$	556.9	$	518.8
Long-lived Assets:
United States	$	2,950.4	$	2,972.4	$	1,877.4
International	372.2		245.0		232.8
TOTAL LONG-LIVED ASSETS	$	3,322.6	$	3,217.4	$	2,110.2