Summary of Significant Accounting Policies - Assets Held for Sale (Details)	Jun. 30, 2018 properties disposition_group
Accounting Policies [Abstract]
Number of disposition groups classified as held for sale \| disposition_group	1
Number of properties, held for sale \| properties	17

Number Of Disposition Groups Classified As Held For Sale

No definition available.

Name:	doc_NumberOfDispositionGroupsClassifiedAsHeldForSale
Namespace Prefix:	doc_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant