Expense Example	Jul. 28, 2025 USD ($)
Schwab Ariel Opportunities ETF \| Schwab Ariel Opportunities ETF
Prospectus [Line Items]
Expense Example, with Redemption, 1 Year	$ 60
Expense Example, with Redemption, 3 Years	189
Expense Example, with Redemption, 5 Years	329
Expense Example, with Redemption, 10 Years	738
Schwab Crypto Thematic ETF \| Schwab Crypto Thematic ETF
Prospectus [Line Items]
Expense Example, with Redemption, 1 Year	31
Expense Example, with Redemption, 3 Years	97
Expense Example, with Redemption, 5 Years	169
Expense Example, with Redemption, 10 Years	$ 381

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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