Equity (Details 1) (USD $)	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Distributions Per Share
Ordinary income	$ 0.3528cpa17_OrdinaryIncomePerShare	$ 0.3104cpa17_OrdinaryIncomePerShare	$ 0.3022cpa17_OrdinaryIncomePerShare
Capital gain	$ 0.0000cpa17_CapitalGainPerShare	$ 0.0110cpa17_CapitalGainPerShare	$ 0.0000cpa17_CapitalGainPerShare
Return of capital	$ 0.2972cpa17_ReturnOfCapitalPerShare	$ 0.3286cpa17_ReturnOfCapitalPerShare	$ 0.3478cpa17_ReturnOfCapitalPerShare
Total distributions paid	$ 0.6500cpa17_DistributionsPaidPerShare	$ 0.6500cpa17_DistributionsPaidPerShare	$ 0.6500cpa17_DistributionsPaidPerShare

The distributions per share paid to stockholders reported, which consist of ordinary income, capital gains, return of capital or a combuination thereof for income tax purposes.

No definition available.

Name:	cpa17_DistributionsPaidPerShare
Namespace Prefix:	cpa17_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration