Acquisitions - Purchase Price Allocation (Details) (USD $)	Feb. 28, 2014	Feb. 28, 2013	Feb. 29, 2012	Jun. 02, 2012 Aquilex [Member]	Jun. 02, 2012 Nuclear Logistics Incorporated [Member]
Purchase Price Allocation
Current Assets				$ 78,619,000	$ 22,901,000
Property and Equipment				27,669,000	1,416,000
Intangible Assets				87,100,000	50,600,000
Goodwill	278,556,040	171,886,270	121,383,863	109,636,000	32,323,000
Other Assets				205,000	58,000
Total Assets Acquired				303,229,000	107,298,000
Current Liabilities				(27,527,000)	(17,866,000)
Long Term Liabilities					(12,388,000)
Net Assets Acquired				$ 275,702,000	$ 77,044,000