Additional Debt Disclosures [Abstract]

No definition available.

Name:	cpa17_AdditionalDebtDisclosuresAbstract
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- Definition

The threshold applied for the rate at which used credit facility fees will be incurred.

+ References

No definition available.

+ Details

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- Definition

The amount of loans repaid during the period.

+ References

No definition available.

+ Details

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- Definition

The number of loans assumed from a business acquisition.

+ References

No definition available.

+ Details

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- Definition

We are required to ensure that the total Restricted Payments (as defined in the Credit Agreement) in an aggregate amount in any fiscal year does not exceed the amount of Restricted Payments required in order for us to (i) maintain our REIT status and (ii) avoid the payment of federal or state income or excise tax. Restricted Payments include quarterly dividends and the total amount of shares repurchased by us, if any, in excess of $100.0 million per year.

+ References

No definition available.

+ Details

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- Definition

Represents a (noncash) issuance of additional equity interests to the parent by a subsidiary during the period, thereby effecting a change in total (consolidated) equity attributable to the parent. The additional equity interest represented by this element increases the parent's controlling interest in the subsidiary.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
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- Definition

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

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-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
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- Definition

Period of time between issuance and maturity of debt instrument, 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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Period Type:	duration

- Definition

The amount of debt discount that was originally recognized at the issuance of the instrument that has yet to be amortized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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Balance Type:	debit
Period Type:	instant

- Definition

Weighted average interest rate of debt outstanding.

+ References

No definition available.

+ Details

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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+ Details

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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 942
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-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 19, 20, 22
-Article 5

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

Amount of the fees associated with providing collateral for the credit facility.

+ References

No definition available.

+ Details

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

- 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
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+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

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

+ References

No definition available.

+ Details

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Stated maturity date of the mortgage loan receivable on real estate, in CCYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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+ Details

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Balance Type:	na
Period Type:	duration

- Definition

The highest stated interest rate within the mortgage loans included in the loan grouping.

+ References

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

The lowest stated interest rate within the mortgage loans included in the loan grouping.

+ References

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- Definition

Amount of debt for which creditor does not have general recourse to the debtor but rather has recourse only to the property used for collateral in the transaction or other specific property.

+ References

No definition available.

+ Details

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

- Definition

Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 830
-SubTopic 30
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-Paragraph 20
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- Definition

The cash outflow to repay long-term debt that is wholly or partially secured by collateral. Excludes repayments of tax exempt secured debt.

+ References

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-Publisher FASB
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-Glossary Financing Activities
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- Details

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- Details

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- Details

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- Details

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Debt (Narratives) (Details)	3 Months Ended			6 Months Ended
Debt (Narratives) (Details)	Jun. 30, 2016 USD ($)	Mar. 31, 2016 USD ($)	Jun. 30, 2015 USD ($)	Jun. 30, 2016 USD ($) loan	Jun. 30, 2015 USD ($)	Dec. 31, 2015 USD ($)
Additional Debt Disclosures
Number of loans assumed \| loan				4
Non-recourse mortgage loans	$ 108,200,000			$ 108,200,000
Unamortized discount	$ 1,000,000			$ 1,000,000
Debt, weighted average interest rate	1.30%			1.30%
Debt instrument terms (years)				7 years 3 months 18 days
Payments of mortgage principal				$ 57,969,000	$ 36,139,000
Line of credit, maximum borrowing capacity	$ 230,000,000	$ 250,000,000		$ 230,000,000
Commitment fee threshold	50.00%			50.00%
Credit facility fees				$ 1,900,000
Line of credit outstanding	$ 19,682,000			19,682,000		$ 112,834,000
Restriction payment threshold	100,000,000.0			100,000,000.0
Effects of foreign currency translation on balance sheet item	(19,592,000)		$ 28,840,000	$ 11,736,000	$ (59,890,000)
Minimum
Additional Debt Disclosures
Debt maturity date				Aug. 31, 2016
Credit facility fee, rate				0.15%
Maximum
Additional Debt Disclosures
Debt maturity date				Aug. 31, 2031
Credit facility fee, rate				0.30%
Investments made in prior years
Additional Debt Disclosures
Non-recourse mortgage loans	96,200,000			$ 96,200,000
Current
Additional Debt Disclosures
Non-recourse mortgage loans	12,000,000			12,000,000
Self storage
Additional Debt Disclosures
Non-recourse mortgage loans	69,800,000			69,800,000
Additional ownership interest acquired				0.15
Unamortized discount	$ 1,200,000			$ 1,200,000
Debt, weighted average interest rate	4.50%			4.50%
Debt instrument terms (years)				1 year 1 month 6 days
Fixed interest rate
Additional Debt Disclosures
Mortgage loan real estate, minimum interest rate				1.90%
Mortgage loan real estate, maximum interest rate				10.90%
Variable interest rate
Additional Debt Disclosures
Mortgage loan real estate, minimum interest rate				1.30%
Mortgage loan real estate, maximum interest rate				6.10%
Mortgages
Additional Debt Disclosures
Debt, weighted average interest rate	4.30%			4.30%
Debt instrument terms (years)				6 years 7 months 6 days
Loans repaid \| loan				3
Payments of mortgage principal				$ 42,900,000
Loss on the extinguishment of debt				7,600,000
Non-recourse debt
Additional Debt Disclosures
Effects of foreign currency translation on balance sheet item				10,800,000
Revolver
Additional Debt Disclosures
Line of credit, maximum borrowing capacity	$ 180,000,000	$ 200,000,000		180,000,000
Debt maturity date		Aug. 26, 2018
Line of credit outstanding	20,000,000			20,000,000
Term Loan
Additional Debt Disclosures
Line of credit, maximum borrowing capacity	$ 50,000,000.0	$ 50,000,000		$ 50,000,000.0
Base Rate \| Revolver \| Minimum
Additional Debt Disclosures
Interest rate on debt	0.50%			0.50%
Base Rate \| Revolver \| Maximum
Additional Debt Disclosures
Interest rate on debt	1.25%			1.25%
Base Rate \| Term Loan \| Minimum
Additional Debt Disclosures
Interest rate on debt	0.45%			0.45%
Base Rate \| Term Loan \| Maximum
Additional Debt Disclosures
Interest rate on debt	1.20%			1.20%
Accordion \| Revolver
Additional Debt Disclosures
Line of credit, maximum borrowing capacity		$ 250,000,000
LIBOR \| Euro Currency Rate \| Revolver \| Minimum
Additional Debt Disclosures
Interest rate on debt	1.50%			1.50%
LIBOR \| Euro Currency Rate \| Revolver \| Maximum
Additional Debt Disclosures
Interest rate on debt	2.25%			2.25%
LIBOR \| Euro Currency Rate \| Term Loan \| Minimum
Additional Debt Disclosures
Interest rate on debt	1.45%			1.45%
LIBOR \| Euro Currency Rate \| Term Loan \| Maximum
Additional Debt Disclosures
Interest rate on debt	2.20%			2.20%