3.26.1 html 271 25 1 true 31 0 false 3 false false R1.htm 030000 - Disclosure - Form N-CSR Cover Sheet http://xbrl.sec.gov/oef/role/NcsrCover Form N-CSR Cover Cover 1 false false R2.htm 030001 - Disclosure - Shareholder Report Sheet http://xbrl.sec.gov/oef/role/ShareholderReport Shareholder Report Notes 2 false false R3.htm 040020 - Disclosure - Shareholder Report, Holdings (Details) Sheet http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails Shareholder Report, Holdings (Details) Details 3 false false All Reports Book All Reports 8df03079a9099cd.htm cik0001655146-20260630.xsd chartimages_1654595.jpg chartimages_1654639.jpg chartimages_1654683.jpg chartimages_1654771.jpg chartimages_1654815.jpg chartimages_1654859.jpg chartimages_1654903.jpg chartimages_1654947.jpg chartimages_1654991.jpg chartimages_1655035.jpg chartimages_1655079.jpg chartimages_1655123.jpg chartimages_1655167.jpg chartimages_1655211.jpg chartimages_1655255.jpg chartimages_1655299.jpg chartimages_1655431.jpg chartimages_1655475.jpg images_2581.jpg img5d96732f1.jpg http://fasb.org/us-gaap/2026 http://xbrl.sec.gov/dei/2026 http://xbrl.sec.gov/oef/2026 false false