Cash collateral deposits for letter of credit facilities.

No definition available.

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Namespace Prefix:	caa_
Data Type:	xbrli:monetaryItemType
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.

+ Details

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Namespace Prefix:	caa_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The maximum leverage ratio permitted under a credit facility.

+ References

No definition available.

+ Details

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Period Type:	instant

- Definition

The minimum interest coverage ratio allowed under a credit facility.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	instant

- Definition

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

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant

- Definition

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

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- 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

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
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
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 6
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21506-112644

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Conversion Rate
-URI http://asc.fasb.org/extlink&oid=6509012

Reference 3: 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)(5))
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Period Type:	duration

- 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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Balance Type:	na
Period Type:	duration

- Definition

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

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-Subparagraph e
-URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Weighted average interest rate of debt outstanding.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
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

Name:	us-gaap_LettersOfCreditOutstandingAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- 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.

+ 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(22))
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+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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

+ Details

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Data Type:	xbrli:monetaryItemType
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

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- 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

+ Details

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Balance Type:	na
Period Type:	instant

- Definition

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).

+ 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

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3255-108585

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The cash outflow for a long-term debt where the holder has highest claim on the entity's asset in case of bankruptcy or liquidation during the period.

+ 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

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3291-108585

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- 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

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
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-Subparagraph (SX 210.7-03(a)(16))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=caa_HomebuildingMember
Namespace Prefix:
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Balance Type:
Period Type:

- Details

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Balance Type:
Period Type:

- Details

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Namespace Prefix:
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- Details

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- Details

Name:	us-gaap_DebtInstrumentAxis=caa_FivePointTwentyFivePercentSeniorNotesDueJune2026Member
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- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_LetterOfCreditMember
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Period Type:

- Details

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Period Type:

- Details

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Period Type:

- Details

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Period Type:

- Details

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Note 8 - Homebuilding Indebtedness (Details Textual)	3 Months Ended	12 Months Ended
Note 8 - Homebuilding Indebtedness (Details Textual)	Jun. 30, 2016 USD ($)	Dec. 31, 2016 USD ($) $ / shares	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
Cash Collateral Deposits		$ 27,100,000
Proceeds from Issuance of Senior Long-term Debt		300,000,000		$ 300,000,000
Repayments of Senior Debt		$ 280,000,000	$ 29,789,000	$ 4,971,000
Debt, Weighted Average Interest Rate		5.70%	6.10%	7.20%
Homebuilding [Member]
Secured Debt		$ 27,579,000	$ 25,683,000
1.625% Convertible Senior Notes due May 2018 [Member]
Debt Instrument, Interest Rate, Stated Percentage		1.625%
Debt Instrument, Convertible, Conversion Ratio		31.8576
Debt Instrument, Convertible Principal Amount used in Conversion Rate Calculation		$ 1,000
Debt Instrument, Convertible, Conversion Price \| $ / shares		$ 31.39
0.25% Convertible Senior Notes Due June 2019 [Member]
Debt Instrument, Interest Rate, Stated Percentage		0.25%
Debt Instrument, Convertible, Conversion Ratio		13.6043
Debt Instrument, Convertible Principal Amount used in Conversion Rate Calculation		$ 1,000
Debt Instrument, Convertible, Conversion Price \| $ / shares		$ 73.51
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 days
Debt Instrument, Convertible, Condition of Redemption, Stock Price Threshold		130.00%
Debt Instrument, Redemption Price, Percentage		100.00%
1.25% Convertible Senior Notes Due August 2032 [Member]
Debt Instrument, Interest Rate, Stated Percentage		1.25%
Debt Instrument, Convertible, Conversion Ratio		24.8941
Debt Instrument, Convertible Principal Amount used in Conversion Rate Calculation		$ 1,000
Debt Instrument, Convertible, Conversion Price \| $ / shares		$ 40.17
Debt Instrument, Redemption Price, Percentage		100.00%
5.25% Senior Notes due June 2026 [Member]
Debt Instrument, Interest Rate, Stated Percentage	5.25%
Proceeds from Issuance of Senior Long-term Debt	$ 300,000,000
Repayments of Senior Debt	$ 280,000,000
Letter of Credit [Member]
Line of Credit Facility, Current Borrowing Capacity		$ 350,000,000
Letters of Credit Outstanding, Amount		112,100,000
Line of Credit Facility, Remaining Borrowing Capacity		637,900,000
Four Committed Letter of Credit [Member]
Line of Credit Facility, Maximum Borrowing Capacity		48,000,000
Letters of Credit Outstanding, Amount		26,700,000
Letter of Credit Facility, Matured in January 2017 [Member]
Line of Credit Facility, Maximum Borrowing Capacity		15,000,000
Letters of Credit Outstanding, Amount		7,200,000
Unsecured Revolving Credit Facility [Member]
Line of Credit Facility, Current Borrowing Capacity		750,000,000
Line of Credit Facility, Maximum Borrowing Capacity		1,200,000,000
Line of Credit Facility Covenant, Minimum Tangible Net Worth Requirement		$ 1,650,000,000
Line of Credit Facility Covenant, Maximum Leverage Ratio		2
Line of Credit Facility Covenant, Minimum Interest Coverage Ratio		1.25
Long-term Line of Credit		$ 0
Unsecured Revolving Credit Facility [Member] \| London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument, Basis Spread on Variable Rate		0.77%
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate		1.75%
Unsecured Revolving Credit Facility [Member] \| Prime Rate [Member]
Debt Instrument, Basis Spread on Variable Rate		3.75%
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate		0.75%