Income Taxes (Details 2) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		12 Months Ended
	Mar. 31, 2013	Dec. 31, 2012	Dec. 31, 2013 item	Dec. 31, 2012	Dec. 31, 2011
Differences between the U.S. statutory federal tax rate and the Company's effective income tax rate
U.S. statutory federal tax rate (as a percent)			35.00%	35.00%	35.00%
State and local taxes (as a percent)			0.60%	0.60%	0.40%
Foreign earnings and dividends taxed at different rates (as a percent)			(9.40%)	(7.90%)	(8.20%)
Valuation allowance (as a percent)			0.20%	(0.20%)	(0.20%)
Tax impact of the delay in American Taxpayer Relief Act (as a percent)			(1.30%)	1.50%
Other (as a percent)			(0.50%)	(0.80%)	(0.80%)
Effective tax rate (as a percent)			24.60%	28.20%	26.20%
Tax cost primarily related to delay of research and development credits and certain domestic taxes on foreign income that are part of tax provisions within American Taxpayer Relief Act	$ 11,300		$ (11,300)	$ 11,300
Net income per diluted common share resulting from the delay in the reinstatement of certain federal income tax provisions for the year 2012	$ 0.07	$ 0.07	$ 0.07	$ 0.07
Reductions in tax expense for tax reserve adjustments relating to the completion of the audit			3,645		4,493
Effective tax rate before adjustments (as a percent)			26.30%	26.70%	26.80%
Deferred tax assets relating to:
Accrued liabilities and reserves		21,841	25,226	21,841
Operating loss and tax credit carry forwards		17,967	19,618	17,967
Pensions, net		56,584	35,221	56,584
Inventory reserves		18,615	18,846	18,615
Employee benefits		30,298	31,972	30,298
Deferred tax assets, excluding the valuation allowance		145,305	130,883	145,305
Deferred tax liabilities relating to:
Goodwill		90,506	108,524	90,506
Depreciation		6,982	4,206	6,982
Contingent consideration		6,591	6,591	6,591
Deferred Tax Liabilities		104,079	119,321	104,079
Liability for unrecognized tax benefits, including penalties and interest, which if recognized would impact the effective tax rate		16,171	14,937	16,171
Reconciliation of the gross amounts of unrecognized tax benefits excluding interest and penalties
Unrecognized tax benefits at the beginning of the period	26,381		26,381	20,215	22,560
Gross increases and gross decreases for tax positions in prior periods			1,373	11,268	(64)
Gross increases - current period tax position			2,376	1,483	2,278
Settlements				(3,127)	(451)
Lapse of statute of limitations			(5,359)	(3,458)	(4,108)
Unrecognized tax benefits at the end of the period		26,381	24,771	26,381	20,215
Estimated interest and penalties included in provision for income taxes			197	(315)	(566)
Tax-related interest and penalties liability for unrecognized tax benefits		2,812	3,009	2,812	3,131
Minimum number of tax jurisdictions			60
Unrecognized tax benefits, anticipated adjustment for changing facts and circumstances, over the next twelve month period			$ 1,800