Significant Accounting Policies (Schedule of Intangible Assets) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Gross carrying amount	$ 1,066,633	$ 747,398
Accumulated amortization	510,428	404,026
Weighted average life of intangible assets	6 years 3 months 15 days	6 years 2 months 12 days
Product Related Intangible Assets [Member]
Gross carrying amount	620,032	472,582
Accumulated amortization	339,608	268,332
Weighted average life of intangible assets	5 years 7 months 6 days	5 years 9 months 29 days
Other Intangible Assets [Member]
Gross carrying amount	446,601	274,816
Accumulated amortization	$ 170,820	$ 135,694
Weighted average life of intangible assets	7 years 3 months 11 days	6 years 9 months 29 days