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Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

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Amount of unamortized debt discount (premium) and debt issuance costs.

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The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

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Date the credit facility terminates, in CCYY-MM-DD format.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

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No definition available.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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The carrying amount, as of the date of the latest financial statement presented, of real estate owned but transferred to serve as collateral for the payment of the related debt obligation, primarily a secured borrowing or repurchase agreement, and for which the transferee is not permitted to sell or re-pledge them to an unrelated party.

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The cash inflow from a borrowing with the highest claim on the assets of the entity in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle, if longer).

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The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

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Notes Payable (Narratives) (Details) - USD ($)				3 Months Ended
Notes Payable (Narratives) (Details) - USD ($)	Mar. 08, 2019	Feb. 20, 2019	Feb. 01, 2019	Feb. 28, 2019	Feb. 28, 2018	Nov. 30, 2018
Debt Instrument [Line Items]
Unamortized debt issuance costs, premiums and discounts				$ 8,400,000		$ 9,800,000
Letters of credit outstanding				33,400,000		$ 28,000,000
Inventories pledged to collateralize mortgages and land contracts, carrying value				138,200,000
Repayment of senior notes				230,000,000	$ 0
Proceeds from issuance of debt		$ 400,000,000		405,250,000	$ 0
Repayments of principal, 2019				412,000,000
Repayments of principal, 2020				350,000,000
Repayments of principal, 2021				0
Repayments of principal, 2022				800,000,000
Repayments of principal, 2023				350,000,000
Repayments of principal, thereafter				$ 300,000,000
1.375% Convertible senior notes due February 1, 2019 [Member] \| Convertible Notes Payable [Member]
Debt Instrument [Line Items]
Repayment of senior notes			$ 230,000,000
Senior notes, rate			1.375%			1.375%
6.875% Senior notes due June 15, 2027 [Member] \| Senior Notes [Member]
Debt Instrument [Line Items]
Senior notes, rate				6.875%
Proceeds from issuance of debt		300,000,000
Debt Instrument, Redemption Price, Percentage				100.00%
7.625% Senior notes due May 15, 2023 [Member] \| Senior Notes [Member]
Debt Instrument [Line Items]
Senior notes, rate				7.625%		7.625%
Proceeds from issuance of debt		$ 100,000,000
Debt Instrument, Redemption Price, Percentage				105.25%
4.75% Senior notes due May 15, 2019 [Member] \| Senior Notes [Member]
Debt Instrument [Line Items]
Senior notes, rate				4.75%		4.75%
4.75% Senior notes due May 15, 2019 [Member] \| Senior Notes [Member] \| Subsequent Event [Member]
Debt Instrument [Line Items]
Repayment of senior notes	$ 400,000,000
Senior notes, rate	4.75%
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Unsecured revolving credit facility, borrowing capacity				$ 500,000,000
Unsecured revolving credit facility, expiration date				Jul. 27, 2021
Unsecured revolving credit facility, maximum borrowing capacity				$ 600,000,000
Credit facility, letters of credit outstanding				0
Unsecured revolving credit facility, remaining borrowing capacity				$ 466,900,000
Revolving Credit Facility [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Line of credit facility, unused capacity, commitment fee percentage				0.30%
Revolving Credit Facility [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Line of credit facility, unused capacity, commitment fee percentage				0.45%
Letter of Credit [Member]
Debt Instrument [Line Items]
Unsecured revolving credit facility, maximum borrowing capacity				$ 250,000,000
Credit facility, letters of credit outstanding				33,100,000
Unsecured revolving credit facility, remaining borrowing capacity				216,900,000
LOC Facilities [Member]
Debt Instrument [Line Items]
Unsecured revolving credit facility, borrowing capacity				50,000,000
Letters of credit outstanding				$ 270,000.000		$ 0