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Acquisitions (Details Textual) (USD $)
0 Months Ended 0 Months Ended
Nov. 30, 2013
Feb. 28, 2013
Mar. 29, 2013
Aquilex [Member]
Jan. 02, 2013
G3 Galvananizing Limited [Member]
Oct. 01, 2012
Galvcast Manufacturing Inc [Member]
Jun. 02, 2012
Nuclear Logistics Incorporated [Member]
Business Acquisition [Line Items]            
Purchase price paid     $ 275,700,000     $ 77,000,000
Payments to Acquire Businesses, Gross     271,800,000      
Additional payment on performance     3,900,000     20,000,000
Acquisiton Related Costs Excluded From Pro Form Earnings     4,300,000      
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities       3,100,000 900,000  
Goodwill 281,711,232 171,886,270   4,200,000 15,700,000  
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets       12,000,000 48,000,000  
Certain liabilities payoff           3,800,000
Fair value the earn           $ 9,000,000
Goodwill, Deductible         75.00%