XML 35 R53.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Fair Value Disclosures (Financial Assets And Liabilities Measured At Fair Value) (Details) (USD $) In Millions, unless otherwise specified | 9 Months Ended |
--- | --- | ---
Sep. 30, 2014 | Dec. 31, 2013
Deferred compensation plan investments (1) | $ 53.8 | [1] | $ 43.8
Participant Withdrawals From Deferred Compensation Plan Investments | 1.4 |  |
Level 1 [Member] |  |  |
Deferred compensation plan investments (1) | 53.8 | [1] | 43.8
Level 2 [Member] |  |  |
Deferred compensation plan investments (1) | 0 | [1] | 0
Level 3 [Member] |  |  |
Deferred compensation plan investments (1) | $ 0 | [1] | $ 0
[1] | Approximately $1.4 million of participant cash was withdrawn from our deferred compensation plan investments during the nine months ended September 30, 2014.

X
- Definition Participant withdrawals from deferred compensation plan investments + References No definition available. + Details
Name: | cpt_ParticipantWithdrawalsFromDeferredCompensationPlanInvestments
Namespace Prefix: | cpt_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Carrying amount as of the balance sheet date of assets held under deferred compensation agreements. + 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 210.5-02.17) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 17 -Article 5 + Details
Name: | us-gaap_DeferredCompensationPlanAssets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant