Intangible Assets and Liabilities (Details 3) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014
Net
2015	$ 36,321
2016	31,732
2017	28,970
2018	28,887
2019	28,850
Thereafter	255,896
Finite lived intangible assets liabilities, net	410,656
Net Increase in Rental Income
Net
2015	(1,244)
2016	(338)
2017	(100)
2018	(75)
2019	(67)
Thereafter	(25,761)
Finite lived intangible assets liabilities, net	(27,585)
Increase to Amortization/Property Expenses
Net
2015	37,565
2016	32,070
2017	29,070
2018	28,962
2019	28,917
Thereafter	281,657
Finite lived intangible assets liabilities, net	$ 438,241

Name:	cpa17_FiniteLivedIntangibleAssetsLiabilitiesFutureAmortizationExpenseAbstract
Namespace Prefix:	cpa17_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Amount after amortization of assets and liabilities, excluding financial assets and liabilities, lacking physical substance with a finite life.

+ References

No definition available.

+ Details

Name:	cpa17_FiniteLivedIntangibleAssetsLiabilitiesNet
Namespace Prefix:	cpa17_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized 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.

+ References

No definition available.

+ Details

Name:	us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during 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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 2

-Subparagraph (a)(3)

-URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275

+ Details

Name:	us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during 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.

+ References

+ Details

Name:	us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the fourth 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.

+ References

+ Details

Name:	us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during 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.

+ References

+ Details

Name:	us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the second 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.

+ References

+ Details

Name:	us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Details

Name:	cpa17_ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseAxis=cpa17_IncreasetoAmortizationPropertyExpenseMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	cpa17_ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseAxis=cpa17_NetChangeInRentalIncomeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: