Subsequent Events (Notes)	12 Months Ended
Feb. 28, 2017
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events On March 21, 2017, we executed the Amended and Restated Credit Agreement (the “2017 Credit Agreement”) with Bank of America and other lenders. The 2017 Credit Agreement amended the Credit Agreement entered into on March 27, 2013 by the following: (i) extending the maturity date until March 21, 2022, (ii) providing for a senior revolving credit facility in a principal amount of up to $450 million, with an additional $150 million accordion, (iii) including a $75 million sublimit for the issuance of standby and commercial letters of credit, (iv) including a $30 million sublimit for swing line loans, (v) restricting indebtedness incurred in respect of capital leases, synthetic lease obligations and purchase money obligations not to exceed $20 million, (vi) restricting investments in any foreign subsidiaries not to exceed $50 million in the aggregate, and (vii) including various financial covenants and certain restricted payments relating to dividends and share repurchases as specifically set forth in the 2017 Credit Agreement. The 2017 Credit Agreement will be used to finance working capital needs, capital improvements, dividends, future acquisitions and letter of credit needs. Two of the Company’s indirectly held subsidiaries, The Calvert Company, Inc. and Nuclear Logistics LLC, have existing contracts with subsidiaries of Westinghouse Electric Company (“WEC”). WEC and the relevant subsidiaries filed relief under Chapter 11 of the Bankruptcy Code on March 29, 2017 in the United States Bankruptcy Court for the Southern District of New York, jointly administered as In re Westinghouse Electric Company, et al., Case No. 17-10751 (the "Bankruptcy Case"). The Bankruptcy Court overseeing the Bankruptcy Case has approved, on an interim basis, an $800M Debtor-in-Possession Financing Facility (“DIP Financing”) to help WEC finance its business operations during the reorganization process. A final hearing on the DIP Financing is scheduled for April 26, 2017. The Company estimates it had approximately $7.2 million in pre-petition exposure with WEC to the Company’s two subsidiaries as of March 29, 2017. The Company’s subsidiaries will continue, for the time being and while it monitors and evaluates the Bankruptcy Case, to honor its executory contracts and has applied for critical vendor status with WEC. At this time, the Company cannot accurately estimate what recovery may be had on any pre-petition amounts or the potential future negative effects if the existing nuclear plant construction projects currently in backlog are cancelled. The Company expects to collect all post-petition amounts due and owing. It will likely be several months before WEC determines who to pay as its critical vendors, if anyone, or otherwise makes a determination as to which contracts to assume and which to reject as part of its reorganization process. The Company does not believe that rejection of the outstanding contracts with WEC, taken in part or combined, would have a material adverse impact on the Company’s cash flow or operations.

Subsequent Events

On March 21, 2017, we executed the Amended and Restated Credit Agreement (the “2017 Credit Agreement”) with Bank of America and other lenders. The 2017 Credit Agreement amended the Credit Agreement entered into on March 27, 2013 by the following: (i) extending the maturity date until March 21, 2022, (ii) providing for a senior revolving credit facility in a principal amount of up to $450 million, with an additional $150 million accordion, (iii) including a $75 million sublimit for the issuance of standby and commercial letters of credit, (iv) including a $30 million sublimit for swing line loans, (v) restricting indebtedness incurred in respect of capital leases, synthetic lease obligations and purchase money obligations not to exceed $20 million, (vi) restricting investments in any foreign subsidiaries not to exceed $50 million in the aggregate, and (vii) including various financial covenants and certain restricted payments relating to dividends and share repurchases as specifically set forth in the 2017 Credit Agreement. The 2017 Credit Agreement will be used to finance working capital needs, capital improvements, dividends, future acquisitions and letter of credit needs.

Two of the Company’s indirectly held subsidiaries, The Calvert Company, Inc. and Nuclear Logistics LLC, have existing contracts with subsidiaries of Westinghouse Electric Company (“WEC”). WEC and the relevant subsidiaries filed relief under Chapter 11 of the Bankruptcy Code on March 29, 2017 in the United States Bankruptcy Court for the Southern District of New York, jointly administered as In re Westinghouse Electric Company, et al., Case No. 17-10751 (the "Bankruptcy Case"). The Bankruptcy Court overseeing the Bankruptcy Case has approved, on an interim basis, an $800M Debtor-in-Possession Financing Facility (“DIP Financing”) to help WEC finance its business operations during the reorganization process. A final hearing on the DIP Financing is scheduled for April 26, 2017. The Company estimates it had approximately $7.2 million in pre-petition exposure with WEC to the Company’s two subsidiaries as of March 29, 2017. The Company’s subsidiaries will continue, for the time being and while it monitors and evaluates the Bankruptcy Case, to honor its executory contracts and has applied for critical vendor status with WEC. At this time, the Company cannot accurately estimate what recovery may be had on any pre-petition amounts or the potential future negative effects if the existing nuclear plant construction projects currently in backlog are cancelled. The Company expects to collect all post-petition amounts due and owing. It will likely be several months before WEC determines who to pay as its critical vendors, if anyone, or otherwise makes a determination as to which contracts to assume and which to reject as part of its reorganization process. The Company does not believe that rejection of the outstanding contracts with WEC, taken in part or combined, would have a material adverse impact on the Company’s cash flow or operations.