1. Basis of Presentation and Use of Estimates Immaterial Errors (Details) (USD $)	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Payments for Acquisitions, Net of Cash Received, and Long-Term Investments	$ 42,010,000	$ 65,883,000
Payments of contingent consideration	0	13,074,000
Payments to Suppliers and Employees	918,152,000	911,227,000
Payments for (proceeds from) derivative instruments, operating activities	1,355,000	(4,992,000)
Scenario, Previously Reported [Member] | Immaterial Error [Member]
Payments for Acquisitions, Net of Cash Received, and Long-Term Investments		(13,500,000)
Payments for (Proceeds from) Derivative Instrument, Investing Activities		(5,000,000)
Restatement Adjustment [Member] | Immaterial Error [Member]
Payments of contingent consideration		13,100,000
Payments to Suppliers and Employees		400,000
Payments for (proceeds from) derivative instruments, operating activities		$ 5,000,000