Summary of Significant Accounting Policies (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2020	Jun. 30, 2020
Accounting Policies [Abstract]
Cash basis lease revenue unrecognized	$ (12.0)	$ (14.8)

Cash basis lease revenue unrecognized until cash is collected or tenant resumes payment and is considered creditworthy.

No definition available.

Name:	cik0001476204_Cashbasisleaserevenueunrecognized
Namespace Prefix:	cik0001476204_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration