Cash collateral deposits for letter of credit facilities.

No definition available.

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Balance Type:	debit
Period Type:	instant

- Definition

Represents the common stock price which must be exceeded for a specified number of trading days within a specified period in order for the Company to have the option to redeem the convertible debt instrument for cash.

+ References

No definition available.

+ Details

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- Definition

Represents the number of trading days immediately preceding the date on which the Company provides notice of redemption, with regard to the consecutive trading days that constitute the trading period, within which there must be a specified number of trading days (whether or not consecutive) for which the stock price exceeds a specified threshold in order for the Company to have the option to redeem the convertible debt instrument for cash.

+ References

No definition available.

+ Details

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- Definition

Debt instrument, convertible, principal amount used in conversion rate calculation.

+ References

No definition available.

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Balance Type:	credit
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- Definition

Percentage price of original principal amount of debt at which debt may be required to be repurchased by the company.

+ References

No definition available.

+ Details

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Period Type:	duration

- Definition

The maximum leverage ratio permitted under a credit facility.

+ References

No definition available.

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- Definition

The minimum interest coverage ratio allowed under a credit facility.

+ References

No definition available.

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- Definition

The minimum tangible net worth requirement required under the line of credit facility.

+ References

No definition available.

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- Definition

Maximum Carve-out In Credit Facility Indebtedness.

+ References

No definition available.

+ Details

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- References

No definition available.

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- Definition

Number of credit facilities that the company were borrowed from.

+ References

No definition available.

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

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Balance Type:	na
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- Definition

The price per share of the conversion feature embedded in the debt instrument.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 5
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6928298&loc=SL6031898-161870

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Period Type:	instant

- Definition

Ratio applied to the conversion of debt instrument into equity with equity shares divided by debt principal amount.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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- Definition

Threshold period of specified consecutive trading days within which common stock price to conversion price of convertible debt instruments must exceed threshold percentage for a specified number of trading days to trigger conversion feature, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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- Definition

Threshold number of specified trading days that common stock price to conversion price of convertible debt instruments must exceed threshold percentage within a specified consecutive trading period to trigger conversion feature.

+ References

No definition available.

+ Details

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

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

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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-Paragraph 3
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- Definition

Weighted average interest rate of debt outstanding.

+ References

No definition available.

+ Details

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- Definition

For an unclassified balance sheet, the carrying amount (net of accumulated amortization) as of the balance sheet date of capitalized costs associated with the issuance of debt instruments (for example, legal, accounting, underwriting, printing, and registration costs) that will be charged against earnings over the life of the debt instruments to which such costs pertain.

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-SubTopic 30
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-Paragraph 3
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-Paragraph 1
-Subparagraph (SX 210.5-02.17)
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Period Type:	instant

- Definition

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

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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- Definition

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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-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 19, 20, 22
-Article 5

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Period Type:	instant

- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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-SubTopic 10
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-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
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Period Type:	instant

- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Balance Type:	credit
Period Type:	instant

- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Balance Type:	credit
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- Definition

The interest rate applicable to the portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a set, unchanging rate.

+ References

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- Definition

The cash outflow for a borrowing supported by a written promise to pay an obligation.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Financing Activities
-URI http://asc.fasb.org/extlink&oid=6513228

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-Name Accounting Standards Codification
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-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3291-108585

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- Definition

Carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized debt obligations (with maturities initially due after one year or beyond the operating cycle, if longer). Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower.

+ References

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Note 8 - Homebuilding Indebtedness (Details)	1 Months Ended	12 Months Ended
Note 8 - Homebuilding Indebtedness (Details)	Aug. 31, 2015 USD ($)	Dec. 31, 2015 USD ($) $ / shares	Oct. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2013
Note 8 - Homebuilding Indebtedness (Details) [Line Items]
Cash Collateral Deposits (in Dollars)		$ 34,500,000
Deferred Finance Costs, Net (in Dollars)		$ 16,883,000
Debt Instrument, Repurchase Price, Percentage		100.00%
Maximum Carve-out In Credit Facility Indebtedness (in Dollars)		$ 1,100,000,000
Debt, Weighted Average Interest Rate		6.10%		7.20%	7.40%
Homebuilding [Member]
Note 8 - Homebuilding Indebtedness (Details) [Line Items]
Secured Debt (in Dollars)		$ 25,683,000		$ 4,689,000
London Interbank Offered Rate (LIBOR) [Member]
Note 8 - Homebuilding Indebtedness (Details) [Line Items]
Debt Instrument, Basis Spread on Variable Rate		0.43%
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate		1.75%
Prime Rate [Member]
Note 8 - Homebuilding Indebtedness (Details) [Line Items]
Debt Instrument, Basis Spread on Variable Rate		3.50%
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate		0.75%
Senior Notes [Member]
Note 8 - Homebuilding Indebtedness (Details) [Line Items]
Deferred Finance Costs, Net (in Dollars)		$ 16,900,000
Committed Letter Of Credit [Member]
Note 8 - Homebuilding Indebtedness (Details) [Line Items]
Number Of Credit Facilities		4
Line of Credit Facility, Maximum Borrowing Capacity (in Dollars)		$ 48,000,000
Letters of Credit Outstanding, Amount (in Dollars)		33,800,000
Unsecured Revolving Credit Facility [Member]
Note 8 - Homebuilding Indebtedness (Details) [Line Items]
Line of Credit Facility, Current Borrowing Capacity (in Dollars)			$ 750,000,000
Long-term Line of Credit (in Dollars)		0
Letter of Credit [Member]
Note 8 - Homebuilding Indebtedness (Details) [Line Items]
Letters of Credit Outstanding, Amount (in Dollars)		118,900,000
Line of Credit Facility, Current Borrowing Capacity (in Dollars)			350,000,000
Unsecured Revolving Credit Facility and Letters of Credit [Member]
Note 8 - Homebuilding Indebtedness (Details) [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity (in Dollars)			1,200,000,000
Line of Credit Facility, Covenant, Minimum Tangible Net Worth Requirement (in Dollars)			$ 1,650,000,000
Line of Credit Facility, Covenant, Maximum Leverage Ratio			2.00
Line of Credit Facility, Covenant, Minimum Interest Coverage Ratio			1.25
Line of Credit Facility, Remaining Borrowing Capacity (in Dollars)		$ 631,100,000
1.625% Convertible Senior Notes Due May 2018 [Member]
Note 8 - Homebuilding Indebtedness (Details) [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		1.625%
Debt Instrument, Convertible, Conversion Ratio		31.8207
Debt Instrument, Convertible, Principal Amount Used In Conversion Rate Calculation (in Dollars)		$ 1,000
Debt Instrument, Convertible, Conversion Price (in Dollars per share) \| $ / shares		$ 31.43
1.625% Convertible Senior Notes Due May 2018 [Member] \| Homebuilding [Member]
Note 8 - Homebuilding Indebtedness (Details) [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		1.625%
0.25% Convertible Senior Notes Due June 2019 [Member]
Note 8 - Homebuilding Indebtedness (Details) [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		0.25%
Debt Instrument, Convertible, Conversion Ratio		13.5886
Debt Instrument, Convertible, Principal Amount Used In Conversion Rate Calculation (in Dollars)		$ 1,000
Debt Instrument, Convertible, Conversion Price (in Dollars per share) \| $ / shares		$ 73.59
Debt Instrument, Convertible, Threshold Trading Days		20
Debt Instrument, Convertible, Threshold Consecutive Trading Days		30 days
Debt Instrument, Convertible, Condition of Redemption, Stock Price Threshold, Trading Period, Number of Trading Days, Number of Trading Days Immediately Preceding the Date On Which Notice of Redemption is Provided		5
Debt Instrument, Convertible, Condition of Redemption, Stock Price Threshold		130.00%
Debt Instrument, Redemption Price, Percentage		100.00%
0.25% Convertible Senior Notes Due June 2019 [Member] \| Homebuilding [Member]
Note 8 - Homebuilding Indebtedness (Details) [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		0.25%
1¼% Convertible Senior Notes [Member]
Note 8 - Homebuilding Indebtedness (Details) [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		1.25%
Debt Instrument, Convertible, Conversion Ratio		24.7787
Debt Instrument, Convertible, Principal Amount Used In Conversion Rate Calculation (in Dollars)		$ 1,000
Debt Instrument, Convertible, Conversion Price (in Dollars per share) \| $ / shares		$ 40.36
Debt Instrument, Redemption Price, Percentage		100.00%
7% Senior Notes [Member]
Note 8 - Homebuilding Indebtedness (Details) [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	7.00%
Repayments of Notes Payable (in Dollars)	$ 29,800,000
7% Senior Notes [Member] \| Homebuilding [Member]
Note 8 - Homebuilding Indebtedness (Details) [Line Items]
Debt Instrument, Interest Rate, Stated Percentage				7.00%