InvestmentsMovement SHOULD be equal to the summation of the underlying values.
Reported value of InvestmentsBookValue at end of period SHOULD be equal to sum of reported value of InvestmentsBookValue at beginning of period and changes in that value during period, InvestmentsMovement.
The summation of the reported values for children members SHOULD be equal to the reported value for parent member.
The summation of the reported values for children members SHOULD be equal to the reported value for parent member.