Basis of Presentation and Nature of Operations (Tables)

3 Months Ended

Feb. 28, 2014

Accounting Policies [Abstract]

Schedule of Impact of Contracts in Progress on Statement of Operations

 The following table summarizes the impact from changes in estimates and assumptions on the statement of operations on key contracts, representing 85% of the Company’s net sales over the first quarters of fiscal 2014 and 2013, accounted for under the percentage-of-completion method of accounting (in millions, except per share amounts):

	Three Months Ended
	February 28, 2014		February 28, 2013
Favorable effect of the changes in contract estimates on loss from continuing operations before income taxes	$	2.3	$	6.2
Favorable effect of the changes in contract estimates on net loss		1.5		3.6
Favorable effect of the changes in contract estimates on basic and diluted loss per share		0.03		0.06