Arrangements with Off-Balance Sheet Risk	6 Months Ended
May 31, 2012
Commitments and Contingencies and Arrangements with Off-Balance Sheet Risk [Abstract]
Arrangements with Off-Balance Sheet Risk	9. Arrangements with Off-Balance Sheet Risk As of May 31, 2012, arrangements with off-balance sheet risk consisted of: — $60.6 million in outstanding commercial letters of credit expiring within the next twelve months, the majority of which may be renewed by either a letter of credit, or in some cases, a surety bond, primarily to collateralize obligations for environmental remediation and insurance coverage. — Up to $120.0 million aggregate in guarantees by GenCorp of Aerojet’s obligations to U.S. government agencies for environmental remediation activities (See Note 7(b) for additional information). — Guarantees, jointly and severally, by the Company’s material domestic subsidiaries of its obligations under its Senior Credit Facility. In addition to the items discussed above, the Company will from time to time enter into certain types of contracts that require the Company to indemnify parties against potential third-party and other claims. These contracts primarily relate to: (i) divestiture agreements, under which the Company may provide customary indemnification to purchasers of its businesses or assets including, for example, claims arising from the operation of the businesses prior to disposition, liability to investigate and remediate environmental contamination existing prior to disposition; (ii) certain real estate leases, under which the Company may be required to indemnify property owners for claims arising from the use of the applicable premises; and (iii) certain agreements with officers and directors, under which the Company may be required to indemnify such persons for liabilities arising out of their relationship with the Company. The terms of such obligations vary. Generally, a maximum obligation is not explicitly stated. The Company also may use surety bonds to collateralize obligations for environmental remediation, other financial commitments, and insurance coverage. Additionally, the Company issues purchase orders and makes other commitments to suppliers for equipment, materials, and supplies in the normal course of business. These purchase commitments are generally for volumes consistent with anticipated requirements to fulfill purchase orders or contracts for product deliveries received, or expected to be received, from customers and would be subject to reimbursement if a cost-plus contract is terminated.

Arrangements with Off-Balance Sheet Risk

6 Months Ended

May 31, 2012

Commitments and Contingencies and Arrangements with Off-Balance Sheet Risk [Abstract]

Arrangements with Off-Balance Sheet Risk

9. Arrangements with Off-Balance Sheet Risk

As of May 31, 2012, arrangements with off-balance sheet risk consisted of:

— $60.6 million in outstanding commercial letters of credit expiring within the next twelve months, the majority of which may be renewed by either a letter of credit, or in some cases, a surety bond, primarily to collateralize obligations for environmental remediation and insurance coverage.

— Up to $120.0 million aggregate in guarantees by GenCorp of Aerojet’s obligations to U.S. government agencies for environmental remediation activities (See Note 7(b) for additional information).

— Guarantees, jointly and severally, by the Company’s material domestic subsidiaries of its obligations under its Senior Credit Facility.

In addition to the items discussed above, the Company will from time to time enter into certain types of contracts that require the Company to indemnify parties against potential third-party and other claims. These contracts primarily relate to: (i) divestiture agreements, under which the Company may provide customary indemnification to purchasers of its businesses or assets including, for example, claims arising from the operation of the businesses prior to disposition, liability to investigate and remediate environmental contamination existing prior to disposition; (ii) certain real estate leases, under which the Company may be required to indemnify property owners for claims arising from the use of the applicable premises; and (iii) certain agreements with officers and directors, under which the Company may be required to indemnify such persons for liabilities arising out of their relationship with the Company. The terms of such obligations vary. Generally, a maximum obligation is not explicitly stated.

The Company also may use surety bonds to collateralize obligations for environmental remediation, other financial commitments, and insurance coverage. Additionally, the Company issues purchase orders and makes other commitments to suppliers for equipment, materials, and supplies in the normal course of business. These purchase commitments are generally for volumes consistent with anticipated requirements to fulfill purchase orders or contracts for product deliveries received, or expected to be received, from customers and would be subject to reimbursement if a cost-plus contract is terminated.