Label	Element	Value
U.S. Diversified Real Estate ETF \| Equinix, Inc. [Member]
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	4.60%
U.S. Diversified Real Estate ETF \| Prologis, Inc. [Member]
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	4.20%
U.S. Diversified Real Estate ETF \| Four Corners Property Trust, Inc. [Member]
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	4.00%
U.S. Diversified Real Estate ETF \| Digital Realty Trust, Inc. [Member]
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	3.60%
U.S. Diversified Real Estate ETF \| AvalonBay Communities, Inc. [Member]
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	3.60%
U.S. Diversified Real Estate ETF \| Welltower, Inc. [Member]
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	3.00%
U.S. Diversified Real Estate ETF \| Equity Residential [Member]
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	2.90%
U.S. Diversified Real Estate ETF \| Simon Property Group, Inc. [Member]
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	2.80%
U.S. Diversified Real Estate ETF \| Terreno Realty Corp. [Member]
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	2.70%
U.S. Diversified Real Estate ETF \| Kilroy Realty Corp. [Member]
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	2.50%
U.S. Diversified Real Estate ETF \| Multi-Family Residential REITs [Member]
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	15.70%
U.S. Diversified Real Estate ETF \| Retail REITs [Member]
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	15.60%
U.S. Diversified Real Estate ETF \| Industrial REITs [Member]
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	14.90%
U.S. Diversified Real Estate ETF \| Office REITs [Member]
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	12.90%
U.S. Diversified Real Estate ETF \| Health Care REITs [Member]
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	10.00%
U.S. Diversified Real Estate ETF \| Data Center REITs [Member]
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	8.30%
U.S. Diversified Real Estate ETF \| Hotels, Resorts & Cruise Lines [Member]
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	5.50%
U.S. Diversified Real Estate ETF \| Single-Family Residential REITs [Member]
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	5.00%
U.S. Diversified Real Estate ETF \| Other Specialized REITs [Member]
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	4.00%
U.S. Diversified Real Estate ETF \| Cash & Other [Member]
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	8.10%

U.S. Diversified Real Estate ETF | Equinix, Inc. [Member]