Acquisitions (Acquired Intangible Assets and Weighted Average Amortization Periods) (Details) - 6 months ended Jun. 30, 2015 - Novotema, SpA and Alfa Valvole, s.r.l - USD ($) $ in Thousands	Total
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets, Total	$ 64,711
Trade names
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets, Total	$ 4,352
Acquired intangible assets, Weighted Average Life	15 years
Customer relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets, Total	$ 50,074
Acquired intangible assets, Weighted Average Life	14 years
Unpatented technology
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets, Total	$ 10,285
Acquired intangible assets, Weighted Average Life	8 years