v3.26.3

Shareholder Fees	Jun. 30, 2026
SIT LARGE CAP GROWTH FUND INC \| SIT LARGE CAP GROWTH FUND INC
Prospectus [Line Items]
Redemption Fee (as a percentage of Amount Redeemed)	(2.00%)

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- References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Form N-1A
-Section 1
-Subsection a

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- References

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

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