v3.26.1
Shareholder Report
6 Months Ended
Jun. 30, 2026
USD ($)
$ / shares
Shareholder Report [Line Items]  
Document Type N-CSRS
Amendment Flag false
Registrant Name Wilshire Variable Insurance Trust
Entity Central Index Key 0001026708
Entity Investment Company Type N-1A
Document Period End Date Jun. 30, 2026
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Wilshire Global Allocation Fund  
Shareholder Report [Line Items]  
Fund Name Wilshire Global Allocation Fund
Class Name Wilshire Global Allocation Fund
No Trading Symbol true
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Wilshire Global Allocation Fund (the “Fund”) for the period of January 1, 2026 to June 30, 2026.
Additional Information [Text Block] You can find additional information about the Fund at https://www.wilshire.com/research-insights/product-literature. You can also request this information by contacting us at 1-866-591-1658.
Additional Information Phone Number 1-866-591-1658
Additional Information Website https://www.wilshire.com/research-insights/product-literature
Expenses [Text Block]
WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS? (based on a hypothetical $10,000 investment)
Fund Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment*
Wilshire Global Allocation Fund
$23
0.45%
[1]
Expenses Paid, Amount $ 23
Expense Ratio, Percent 0.45%
Net Assets $ 522,148,326
Holdings Count | $ / shares 11
Advisory Fees Paid, Amount $ 310,912
Investment Company Portfolio Turnover 3.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of June 30, 2026)
Net Assets
$522,148,326
Number of Holdings
11
Net Advisory Fee
$310,912
Portfolio Turnover
3%
Holdings [Text Block]
WHAT DID THE FUND INVEST IN? (as of June 30, 2026)
Top Sectors
(% of Net Assets)
Cash & Other
100.0
%
Top 10 Issuers
(% of Net Assets)
Wilshire International Equity Fund
22.4
%
Wilshire Large Company Growth Portfolio
16.8
%
Wilshire Income Opportunities Fund
16.8
%
Wilshire Large Company Value Portfolio
16.6
%
Vanguard Total International Bond Index Fund
14.0
%
Vanguard Mega Cap Index Fund
4.0
%
Fidelity Emerging Markets Index Fund
2.1
%
Vanguard Long-Term Bond Index Fund
1.9
%
Fidelity U.S. Bond Index
1.9
%
Wilshire Small Company Growth Portfolio
1.6
%
Updated Prospectus Web Address https://www.wilshire.com/research-insights/product-literature
[1]
* Annualized.