Goodwill and Intangible Assets - Schedule of Amortizable Intangible Assets (Details) - USD ($) $ in Thousands	Feb. 28, 2018	Feb. 28, 2017
Amortizable intangible assets
Finite-lived intangible assets, gross	$ 246,833	$ 227,334
Less accumulated amortization	(105,642)	(88,314)
Finite-Lived Intangible Assets, Net	141,191	139,020
Customer-Related Intangible Assets [Member]
Amortizable intangible assets
Finite-lived intangible assets, gross	194,712	177,514
Noncompete Agreements [Member]
Amortizable intangible assets
Finite-lived intangible assets, gross	7,952	5,651
Trademarks [Member]
Amortizable intangible assets
Finite-lived intangible assets, gross	4,569	4,569
Technology [Member]
Amortizable intangible assets
Finite-lived intangible assets, gross	7,400	7,400
Engineering Drawings [Member]
Amortizable intangible assets
Finite-lived intangible assets, gross	24,600	24,600
Order or Production Backlog [Member]
Amortizable intangible assets
Finite-lived intangible assets, gross	$ 7,600	$ 7,600