Subsequent Events	3 Months Ended
Aug. 31, 2011
Subsequent Events
Subsequent Events	NOTE P – Subsequent Events On September 14, 2011, we amended the terms of the market-based restricted common share awards granted during the first quarter of fiscal 2012. As more fully described in "NOTE I – Stock-Based Compensation," the amended awards were accounted for as a modification of the original awards in accordance with the applicable accounting guidance. On September 30, 2011, we completed the acquisition of Poland-based STAKO sp.z o.o. ("STAKO") for cash consideration of approximately $42,000,000, subject to certain post-closing adjustments. STAKO is a leading European producer of automotive liquefied propane gas tanks. The operations of STAKO became part of our Pressure Cylinders operating segment upon closing of this transaction.

Subsequent Events

3 Months Ended

Aug. 31, 2011

NOTE P – Subsequent Events

On September 14, 2011, we amended the terms of the market-based restricted common share awards granted during the first quarter of fiscal 2012. As more fully described in "NOTE I – Stock-Based Compensation," the amended awards were accounted for as a modification of the original awards in accordance with the applicable accounting guidance.

On September 30, 2011, we completed the acquisition of Poland-based STAKO sp.z o.o. ("STAKO") for cash consideration of approximately $42,000,000, subject to certain post-closing adjustments. STAKO is a leading European producer of automotive liquefied propane gas tanks. The operations of STAKO became part of our Pressure Cylinders operating segment upon closing of this transaction.