Acquisitions and Dispositions of Businesses (Acquired assets and liabilities assumed) (Details 1) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Business Acquisition [Line Items]
Goodwill	$ 1,122,954	$ 1,017,513	$ 1,348,710
Series of Individually Immaterial Business Acquisitions [Member]
Business Acquisition [Line Items]
Accounts receivable	8,538	30,537	15,912
Other assets	2,298	21,806	16,495
Property, plant and equipment	3,940	28,872	12,834
Goodwill	184,118	76,156	128,919
Indefinite-lived intangible assets	53,110	7,400	12,051
Amortized intangible assets	28,267	31,900	73,766
Deferred income taxes and other liabilities	(32,901)	(36,892)	(36,834)
Redeemable noncontrolling interest	0	0	(17,108)
Aggregate purchase price, net of cash received	$ 247,370	$ 159,779	$ 206,035