Discontinued Operations (Components Of Income Related To Pacific Scientific Aerospace Business) (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Oct. 01, 2010	Sep. 30, 2011	Oct. 01, 2010
Discontinued Operations
Net sales		$ 97,300,000	$ 110,600,000	$ 275,200,000
Operating expenses		(77,800,000)	(99,500,000)	(227,800,000)
Allocated interest expense		(600,000)	(600,000)	(1,800,000)
Income before taxes		18,900,000	10,500,000	45,600,000
Income tax expense		(6,300,000)	(4,000,000)	(15,100,000)
Income from discontinued operations		12,600,000	6,500,000	30,500,000
Gain on sale, net of $126 million of related income taxes			201,700,000
Earnings from discontinued operations, net of income taxes		12,631,000	208,230,000	30,471,000
Income taxes related to the gain on the sale			$ 126,000,000