Quarterly Results For The Year (Details) (USD $)	3 Months Ended										9 Months Ended		12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013		Jun. 30, 2013		Mar. 31, 2013		Dec. 31, 2012	Jun. 30, 2012	Mar. 31, 2012	Sep. 30, 2012		Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Quarterly Financial Data [Abstract]
Net sales	$ 681,449,000	$ 637,515,000		$ 648,746,000		$ 627,571,000		$ 629,788,000	$ 657,686,000	$ 645,613,000	$ 645,981,000		$ 2,595,281,000	$ 2,579,068,000	$ 2,500,369,000
Cost of sales	454,598,000	421,317,000	[1]	426,025,000	[2]	409,819,000		418,085,000	436,095,000	429,621,000	426,148,000		1,711,759,000	1,709,949,000	1,653,238,000
Gross profit	226,851,000	216,198,000		222,721,000		217,752,000		211,703,000	221,591,000	215,992,000	219,833,000		883,522,000	869,119,000
Operating profit from continuing operations	83,121,000	89,009,000	[3]	88,846,000	[4]	86,900,000	[5]	76,183,000	69,377,000	78,297,000	86,584,000	[6]	347,876,000	310,441,000	36,571,000
Income from continuing operations attributable to common shareholders								45,644,000	42,653,000	50,840,000	56,224,000	[7]		195,361,000
Discontinued operations, net of tax								0	19,909,000	822,000	901,000		0	21,632,000	3,700,000
Net income attributable to common shareholders	49,706,000	57,131,000	[8]	54,874,000	[9]	57,791,000	[10]	45,644,000	62,562,000	51,662,000	57,125,000	[7]	219,502,000	216,993,000	26,315,000
Earnings per basic share
Income from continuing operations attributable to common shareholders								$ 0.80	$ 0.74	$ 0.88	$ 0.99		$ 3.79	$ 3.40	$ 0.39
Discontinued operations, net of tax								$ 0.00	$ 0.34	$ 0.01	$ 0.02		$ 0.00	$ 0.38	$ 0.06
Net income attributable to common shareholders	$ 0.86	$ 0.98		$ 0.95		$ 1.01		$ 0.80	$ 1.08	$ 0.89	$ 1.00		$ 3.79	$ 3.78	$ 0.45
Earnings per diluted share
Income from continuing operations attributable to common shareholders								$ 0.79	$ 0.73	$ 0.86	$ 0.97		$ 3.73	$ 3.35	$ 0.38
Discontinued operations, net of tax								$ 0.00	$ 0.34	$ 0.01	$ 0.02		$ 0.00	$ 0.37	$ 0.06
Net income attributable to common shareholders	$ 0.84	$ 0.97		$ 0.93		$ 0.99		$ 0.79	$ 1.07	$ 0.88	$ 0.99		$ 3.73	$ 3.72	$ 0.44
Restructuring charge				160,000		3,556,000				14,747,000			18,500,000	18,463,000	0
Pension curtailment charge						460,000
Gain on divestiture						18,276,000
Charges related to repositioning activities				1,194,000		516,000
Acquisition costs associated with the potential acquisition of MEI													22,800,000
Asbestos provision													0	0	241,647,000
Environmental provision													$ 0	$ 0	$ 30,327,000

[1] Includes $516 of charges related to repositioning activities.

[2] Includes $2,854 of acquisition transaction costs.

[3] Includes the impact of item (i), $3,556 of restructuring charges, $460 pension curtailment charge, and $3,874 non-deductible acquisition costs associated with the acquisition of MEI.

[4] Includes the impact of item (e) cited above, net of tax and $1,240 withholding taxes related to acquisition funding.

[5] Includes $2,888 of acquisition transaction costs.

[6] Includes $18,276 gain on divestiture, net of tax.

[7] Includes the impact of items (a) and (c) cited above, net of tax.

[8] Includes the impact of item (j) cited above, net of tax.

[9] Includes $10,170 of acquisition transaction costs and $4,654 of acquisition related inventory and backlog amortization

[10] Includes the impact of item (c) cited above, net of tax and $460 withholding taxes related to acquisition funding.