Consolidated Statements of Cash Flows (USD $) In Millions, unless otherwise specified	12 Months Ended
	Nov. 30, 2011	Nov. 30, 2010	Nov. 30, 2009
Operating Activities
Net income	$ 2.9	$ 6.8	$ 52.2
Adjustments to reconcile net income to net cash provided by operating activities:
(Income) loss from discontinued operations, net of income taxes		(0.8)	6.7
Depreciation and amortization	24.6	27.9	25.7
Amortization of debt discount and financing costs	6.7	10.5	12.7
Stock-based compensation	3.7	0.4	2.9
Savings plan expense, non-cash			1.5
Net recognized gain on marketable securities		(0.1)
Impairment of long-lived asset		1.6
Tax benefit on stock-based awards	(0.2)
Loss on debt repurchased	0.2	1.2
Loss on bank amendment	1.3	0.7	0.2
Changes in assets and liabilities:
Accounts receivable	(0.3)	9.6	(19.0)
Inventories	1.6	10.7	8.6
Grantor trust	1.7	3.9	10.7
Other receivables, prepaid expenses and other	4.0	5.4	0.2
Income tax receivable	2.3	(5.1)	8.2
Real estate held for entitlement and leasing	(4.4)	(5.2)	(5.9)
Other noncurrent assets	20.5	1.8	10.1
Accounts payable	6.7	8.7	(14.3)
Pension benefits	44.5	39.4	(29.0)
Postretirement medical and life benefits	(5.4)	(5.6)	(10.7)
Advance payments on contracts	(1.5)	44.0	19.3
Other current liabilities	(1.6)	(2.2)	(17.9)
Deferred income taxes		(2.0)	1.3
Other noncurrent liabilities and other	(30.2)	(2.4)	(12.0)
Net cash provided by continuing operations	77.1	149.2	51.5
Net cash used in discontinued operations	(0.3)	(1.1)	(1.2)
Net Cash Provided by Operating Activities	76.8	148.1	50.3
Investing Activities
Capital expenditures	(21.1)	(16.9)	(14.3)
Purchases of marketable securities	(15.0)	(154.2)
Sales of marketable securities	41.7	127.6
Purchases of restricted cash investments		(195.0)
Sales of restricted cash investments		195.0
Net Cash Provided by (Used in) Investing Activities	5.6	(43.5)	(14.3)
Financing Activities
Proceeds from the issuance of debt		200.0
Repayments on debt	(70.1)	(240.2)	(2.0)
Debt issuance costs	(4.2)	(7.7)	(0.4)
Tax benefit on stock-based awards	0.2
Vendor financing repayments	(1.8)	(1.5)
Net Cash Used in Financing Activities	(75.9)	(49.4)	(2.4)
Net increase in cash and cash equivalents	6.5	55.2	33.6
Cash and cash equivalents at beginning of year	181.5	126.3	92.7
Cash and Cash Equivalents at End of Year	188.0	181.5	126.3
Supplemental Disclosures of Cash Flow Information
Capital expenditure purchased with a note payable		4.4
Capital leases		1.3
Cash paid for income taxes	3.7	3.5	3.3
Cash paid for interest	$ 22.4	$ 23.6	$ 23.7