Acquisitions (Allocation of Acquisition Costs to Assets Acquired and Liabilities Assumed) (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Business Acquisition [Line Items]
Goodwill	$ 1,397,660	$ 1,321,277
Novotema, SpA and Alfa Valvole, s.r.l
Business Acquisition [Line Items]
Current assets, net of cash acquired	40,296
Property, plant and equipment	12,233
Goodwill	94,481
Intangible assets	64,711
Total assets acquired	211,721
Current liabilities	(15,321)
Deferred tax liability	(20,863)
Other liabilities	(2,204)
Net assets acquired	$ 173,333