10. Other Income and Expenses (Details) (USD $)	3 Months Ended	12 Months Ended			3 Months Ended		12 Months Ended
	Dec. 31, 2013	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013 Clinical Diagnostics [Member]	Dec. 31, 2012 Clinical Diagnostics [Member]	Dec. 31, 2012 Clinical Diagnostics [Member]
Consideration for sale of building						$ 6,400,000
Gain (loss) on sale of property, plant and equipment - Diagnostics						4,300,000
Interest and investment income		(13,400,000)	(11,400,000)	(8,200,000)
Net realized losses (gains) on investments		300,000	(8,700,000)	(700,000)
Other-than-temporary impairment losses on investments		300,000	1,000,000	2,100,000
Loss (gain) on disposal of property plant equipment		500,000		200,000
(Gain) loss on sale of property, plant and equipment - consolidated			(3,800,000)
Miscellaneous Other (Income) Expense Items, Net		(500,000)	1,000,000	(1,000,000)
Other (income) expense, net		12,766,000	21,883,000	7,583,000
Goodwill, Written off Related to Sale of Business Unit	$ 0	$ 0	$ 1,000,000	$ 0	$ 0	$ 1,000,000	$ 1,000,000