Segment Reporting (Details 1) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Reconciliation of earnings before taxes to segment profit
Earnings before taxes	$ 90,873	$ 81,726	$ 160,009	$ 151,034
Amortization	5,807	5,357	10,929	10,556
Interest expense	5,543	5,706	10,943	11,529
Restructuring Charges	3,196	7,835	8,198	8,143
Other charges (income), net	987	433	1,760	589
Segment Profit Information	$ 106,406	$ 101,057	$ 191,839	$ 181,851