Goodwill and Intangible Assets - Schedule of Amortizable Intangible Assets (Details) (USD $) In Thousands, unless otherwise specified	Feb. 28, 2014	Feb. 28, 2013
Amortizable intangible assets
Finite-lived intangible assets, gross	$ 209,732	$ 124,865
Less accumulated amortization	(39,300)	(21,440)
Finite-Lived Intangible Assets, Net	170,432	103,425
Customer Related Intangibles [Member]
Amortizable intangible assets
Finite-lived intangible assets, gross	158,913	81,110
Less accumulated amortization	(19,992)	(11,633)
Noncompete Agreements [Member]
Amortizable intangible assets
Finite-lived intangible assets, gross	5,037	5,219
Less accumulated amortization	(3,740)	(3,437)
Trademarks [Member]
Amortizable intangible assets
Finite-lived intangible assets, gross	5,110	5,169
Technology [Member]
Amortizable intangible assets
Finite-lived intangible assets, gross	7,400	0
Certification Marks [Member]
Amortizable intangible assets
Finite-lived intangible assets, gross	232	253
Engineering Drawings [Member]
Amortizable intangible assets
Finite-lived intangible assets, gross	24,600	24,600
Backlog [Member]
Amortizable intangible assets
Finite-lived intangible assets, gross	$ 8,440	$ 8,514