Goodwill and Other Intangible Assets (Narrative) (Details) - USD ($)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Goodwill [Line Items]
Goodwill, currency translation losses	$ 12,200,000	$ 2,100,000
Goodwill, additions from new business combinations	0	19,500,000
Amortization expense, intangible assets	7,300,000	$ 4,600,000
Earn-Out Arrangements [Member]
Goodwill [Line Items]
Goodwill, accruals of acquisition-related contingent consideration	$ 0