Expense Example, No Redemption - DFA Global Core Plus Real Return Portfolio - Institutional Class	Apr. 13, 2021 USD ($)
Expense Example, No Redemption:
Expense Example, No Redemption, 1 Year	$ 31
Expense Example, No Redemption, 3 Years	$ 99

You would pay the following expenses if you did not redeem your shares. Include the second 1-, 3-, 5-, and 10-year periods and related narrative explanation only if a sales charge (load) or other fee is charged upon redemption.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 3
-Subsection example
-Paragraph 2
-Subparagraph 1

Name:	rr_ExpenseExampleNoRedemptionYear01
Namespace Prefix:	rr_
Data Type:	rr:NonNegativeMonetaryType
Balance Type:	na
Period Type:	duration