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Disclosure - State Street SPDR FactSet Innovative Technology ETF Investment Strategy Sheet http://www.ssgafunds.com/2/role/InvestmentStrategy State Street SPDR FactSet Innovative Technology ETF Investment Strategy Risk/Return 126 false false R127.htm 210005 - Disclosure - State Street SPDR FactSet Innovative Technology ETF Investment Risks Sheet http://www.ssgafunds.com/2/role/InvestmentRisks State Street SPDR FactSet Innovative Technology ETF Investment Risks Risk/Return 127 false false R128.htm 210006 - Disclosure - State Street SPDR FactSet Innovative Technology ETF Performance Management Sheet http://www.ssgafunds.com/2/role/PerformanceManagement State Street SPDR FactSet Innovative Technology ETF Performance Management Risk/Return 128 false false R129.htm 2110000 - Disclosure - State Street SPDR SP 400 Mid Cap Growth ETF N-1A Cover Sheet http://www.ssgafunds.com/21/role/N1aCover State Street SPDR SP 400 Mid Cap Growth ETF N-1A Cover Risk/Return 129 false false R130.htm 2110002 - Disclosure - 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State Street SPDR SP 400 Mid Cap Value ETF Average Annual Total Returns Sheet http://www.ssgafunds.com/22/role/PerformanceTableData State Street SPDR SP 400 Mid Cap Value ETF Average Annual Total Returns Risk/Return 152 false false R153.htm 2310000 - Disclosure - State Street SPDR SP 500 Fossil Fuel Reserves Free ETF N-1A Cover Sheet http://www.ssgafunds.com/23/role/N1aCover State Street SPDR SP 500 Fossil Fuel Reserves Free ETF N-1A Cover Risk/Return 153 false false R154.htm 2310002 - Disclosure - State Street SPDR SP 500 Fossil Fuel Reserves Free ETF Investment Objectives and Goals Sheet http://www.ssgafunds.com/23/role/RiskReturn State Street SPDR SP 500 Fossil Fuel Reserves Free ETF Investment Objectives and Goals Risk/Return 154 false false R155.htm 2310003 - Disclosure - State Street SPDR SP 500 Fossil Fuel Reserves Free ETF Fees and Expenses Sheet http://www.ssgafunds.com/23/role/FeesAndExpenses State Street SPDR SP 500 Fossil Fuel Reserves Free ETF Fees and Expenses Risk/Return 155 false false R156.htm 2310004 - 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Disclosure - State Street SPDR Global Dow ETF Performance Management Sheet http://www.ssgafunds.com/3/role/PerformanceManagement State Street SPDR Global Dow ETF Performance Management Risk/Return 238 false false R239.htm 3110000 - Disclosure - State Street SPDR SP Dividend ETF N-1A Cover Sheet http://www.ssgafunds.com/31/role/N1aCover State Street SPDR SP Dividend ETF N-1A Cover Risk/Return 239 false false R240.htm 3110002 - Disclosure - State Street SPDR SP Dividend ETF Investment Objectives and Goals Sheet http://www.ssgafunds.com/31/role/RiskReturn State Street SPDR SP Dividend ETF Investment Objectives and Goals Risk/Return 240 false false R241.htm 3110003 - Disclosure - State Street SPDR SP Dividend ETF Fees and Expenses Sheet http://www.ssgafunds.com/31/role/FeesAndExpenses State Street SPDR SP Dividend ETF Fees and Expenses Risk/Return 241 false false R242.htm 3110004 - Disclosure - State Street SPDR SP Dividend ETF Investment Strategy Sheet http://www.ssgafunds.com/31/role/InvestmentStrategy State Street SPDR SP Dividend ETF Investment Strategy Risk/Return 242 false false R243.htm 3110005 - Disclosure - State Street SPDR SP Dividend ETF Investment Risks Sheet http://www.ssgafunds.com/31/role/InvestmentRisks State Street SPDR SP Dividend ETF Investment Risks Risk/Return 243 false false R244.htm 3110006 - Disclosure - State Street SPDR SP Dividend ETF Performance Management Sheet http://www.ssgafunds.com/31/role/PerformanceManagement State Street SPDR SP Dividend ETF Performance Management Risk/Return 244 false false R245.htm 3120020 - Disclosure - State Street SPDR SP Dividend ETF Annual Fund Operating Expenses Sheet http://www.ssgafunds.com/31/role/OperatingExpensesData State Street SPDR SP Dividend ETF Annual Fund Operating Expenses Risk/Return 245 false false R246.htm 3120030 - Disclosure - State Street SPDR SP Dividend ETF Expense Example Sheet http://www.ssgafunds.com/31/role/ExpenseExample State Street SPDR SP Dividend ETF Expense Example Risk/Return 246 false false R247.htm 3120050 - Disclosure - State Street SPDR SP Dividend ETF Annual Total Returns Sheet http://www.ssgafunds.com/31/role/BarChartData State Street SPDR SP Dividend ETF Annual Total Returns Risk/Return 247 false false R248.htm 3120060 - Disclosure - State Street SPDR SP Dividend ETF Average Annual Total Returns Sheet http://www.ssgafunds.com/31/role/PerformanceTableData State Street SPDR SP Dividend ETF Average Annual Total Returns Risk/Return 248 false false R249.htm 320020 - Disclosure - State Street SPDR Global Dow ETF Annual Fund Operating Expenses Sheet http://www.ssgafunds.com/3/role/OperatingExpensesData State Street SPDR Global Dow ETF Annual Fund Operating Expenses Risk/Return 249 false false R250.htm 320030 - Disclosure - State Street SPDR Global Dow ETF Expense Example Sheet http://www.ssgafunds.com/3/role/ExpenseExample State Street SPDR Global Dow ETF Expense Example Risk/Return 250 false false R251.htm 320050 - Disclosure - State Street SPDR Global Dow ETF Annual Total Returns Sheet http://www.ssgafunds.com/3/role/BarChartData State Street SPDR Global Dow ETF Annual Total Returns Risk/Return 251 false false R252.htm 320060 - Disclosure - State Street SPDR Global Dow ETF Average Annual Total Returns Sheet http://www.ssgafunds.com/3/role/PerformanceTableData State Street SPDR Global Dow ETF Average Annual Total Returns Risk/Return 252 false false R253.htm 3210000 - Disclosure - State Street SPDR SP Health Care Equipment ETF N-1A Cover Sheet http://www.ssgafunds.com/32/role/N1aCover State Street SPDR SP Health Care Equipment ETF N-1A Cover Risk/Return 253 false false R254.htm 3210002 - Disclosure - State Street SPDR SP Health Care Equipment ETF Investment Objectives and Goals Sheet http://www.ssgafunds.com/32/role/RiskReturn State Street SPDR SP Health Care Equipment ETF Investment Objectives and Goals Risk/Return 254 false false R255.htm 3210003 - Disclosure - State Street SPDR SP Health Care Equipment ETF Fees and Expenses Sheet http://www.ssgafunds.com/32/role/FeesAndExpenses State Street SPDR SP Health Care Equipment ETF Fees and Expenses Risk/Return 255 false false R256.htm 3210004 - Disclosure - State Street SPDR SP Health Care Equipment ETF Investment Strategy Sheet http://www.ssgafunds.com/32/role/InvestmentStrategy State Street SPDR SP Health Care Equipment ETF Investment Strategy Risk/Return 256 false false R257.htm 3210005 - Disclosure - State Street SPDR SP Health Care Equipment ETF Investment Risks Sheet http://www.ssgafunds.com/32/role/InvestmentRisks State Street SPDR SP Health Care Equipment ETF Investment Risks Risk/Return 257 false false R258.htm 3210006 - Disclosure - State Street SPDR SP Health Care Equipment ETF Performance Management Sheet http://www.ssgafunds.com/32/role/PerformanceManagement State Street SPDR SP Health Care Equipment ETF Performance Management Risk/Return 258 false false R259.htm 3220020 - Disclosure - State Street SPDR SP Health Care Equipment ETF Annual Fund Operating Expenses Sheet http://www.ssgafunds.com/32/role/OperatingExpensesData State Street SPDR SP Health Care Equipment ETF Annual Fund Operating Expenses Risk/Return 259 false false R260.htm 3220030 - Disclosure - State Street SPDR SP Health Care Equipment ETF Expense Example Sheet http://www.ssgafunds.com/32/role/ExpenseExample State Street SPDR SP Health Care Equipment ETF Expense Example Risk/Return 260 false false R261.htm 3220050 - Disclosure - State Street SPDR SP Health Care Equipment ETF Annual Total Returns Sheet http://www.ssgafunds.com/32/role/BarChartData State Street SPDR SP Health Care Equipment ETF Annual Total Returns Risk/Return 261 false false R262.htm 3220060 - Disclosure - State Street SPDR SP Health Care Equipment ETF Average Annual Total Returns Sheet http://www.ssgafunds.com/32/role/PerformanceTableData State Street SPDR SP Health Care Equipment ETF Average Annual Total Returns Risk/Return 262 false false R263.htm 3310000 - Disclosure - State Street SPDR SP Health Care Services ETF N-1A Cover Sheet http://www.ssgafunds.com/33/role/N1aCover State Street SPDR SP Health Care Services ETF N-1A Cover Risk/Return 263 false false R264.htm 3310002 - Disclosure - State Street SPDR SP Health Care Services ETF Investment Objectives and Goals Sheet http://www.ssgafunds.com/33/role/RiskReturn State Street SPDR SP Health Care Services ETF Investment Objectives and Goals Risk/Return 264 false false R265.htm 3310003 - Disclosure - State Street SPDR SP Health Care Services ETF Fees and Expenses Sheet http://www.ssgafunds.com/33/role/FeesAndExpenses State Street SPDR SP Health Care Services ETF Fees and Expenses Risk/Return 265 false false R266.htm 3310004 - Disclosure - State Street SPDR SP Health Care Services ETF Investment Strategy Sheet http://www.ssgafunds.com/33/role/InvestmentStrategy State Street SPDR SP Health Care Services ETF Investment Strategy Risk/Return 266 false false R267.htm 3310005 - Disclosure - State Street SPDR SP Health Care Services ETF Investment Risks Sheet http://www.ssgafunds.com/33/role/InvestmentRisks State Street SPDR SP Health Care Services ETF Investment Risks Risk/Return 267 false false R268.htm 3310006 - Disclosure - State Street SPDR SP Health Care Services ETF Performance Management Sheet http://www.ssgafunds.com/33/role/PerformanceManagement State Street SPDR SP Health Care Services ETF Performance Management Risk/Return 268 false false R269.htm 3320020 - Disclosure - State Street SPDR SP Health Care Services ETF Annual Fund Operating Expenses Sheet http://www.ssgafunds.com/33/role/OperatingExpensesData State Street SPDR SP Health Care Services ETF Annual Fund Operating Expenses Risk/Return 269 false false R270.htm 3320030 - Disclosure - State Street SPDR SP Health Care Services ETF Expense Example Sheet http://www.ssgafunds.com/33/role/ExpenseExample State Street SPDR SP Health Care Services ETF Expense Example Risk/Return 270 false false R271.htm 3320050 - Disclosure - State Street SPDR SP Health Care Services ETF Annual Total Returns Sheet http://www.ssgafunds.com/33/role/BarChartData State Street SPDR SP Health Care Services ETF Annual Total Returns Risk/Return 271 false false R272.htm 3320060 - Disclosure - State Street SPDR SP Health Care Services ETF Average Annual Total Returns Sheet http://www.ssgafunds.com/33/role/PerformanceTableData State Street SPDR SP Health Care Services ETF Average Annual Total Returns Risk/Return 272 false false R273.htm 3410000 - Disclosure - State Street SPDR SP Homebuilders ETF N-1A Cover Sheet http://www.ssgafunds.com/34/role/N1aCover State Street SPDR SP Homebuilders ETF N-1A Cover Risk/Return 273 false false R274.htm 3410002 - Disclosure - State Street SPDR SP Homebuilders ETF Investment Objectives and Goals Sheet http://www.ssgafunds.com/34/role/RiskReturn State Street SPDR SP Homebuilders ETF Investment Objectives and Goals Risk/Return 274 false false R275.htm 3410003 - Disclosure - State Street SPDR SP Homebuilders ETF Fees and Expenses Sheet http://www.ssgafunds.com/34/role/FeesAndExpenses State Street SPDR SP Homebuilders ETF Fees and Expenses Risk/Return 275 false false R276.htm 3410004 - Disclosure - State Street SPDR SP Homebuilders ETF Investment Strategy Sheet http://www.ssgafunds.com/34/role/InvestmentStrategy State Street SPDR SP Homebuilders ETF Investment Strategy Risk/Return 276 false false R277.htm 3410005 - Disclosure - State Street SPDR SP Homebuilders ETF Investment Risks Sheet http://www.ssgafunds.com/34/role/InvestmentRisks State Street SPDR SP Homebuilders ETF Investment Risks Risk/Return 277 false false R278.htm 3410006 - Disclosure - State Street SPDR SP Homebuilders ETF Performance Management Sheet http://www.ssgafunds.com/34/role/PerformanceManagement State Street SPDR SP Homebuilders ETF Performance Management Risk/Return 278 false false R279.htm 3420020 - Disclosure - State Street SPDR SP Homebuilders ETF Annual Fund Operating Expenses Sheet http://www.ssgafunds.com/34/role/OperatingExpensesData State Street SPDR SP Homebuilders ETF Annual Fund Operating Expenses Risk/Return 279 false false R280.htm 3420030 - Disclosure - State Street SPDR SP Homebuilders ETF Expense Example Sheet http://www.ssgafunds.com/34/role/ExpenseExample State Street SPDR SP Homebuilders ETF Expense Example Risk/Return 280 false false R281.htm 3420050 - Disclosure - State Street SPDR SP Homebuilders ETF Annual Total Returns Sheet http://www.ssgafunds.com/34/role/BarChartData State Street SPDR SP Homebuilders ETF Annual Total Returns Risk/Return 281 false false R282.htm 3420060 - Disclosure - State Street SPDR SP Homebuilders ETF Average Annual Total Returns Sheet http://www.ssgafunds.com/34/role/PerformanceTableData State Street SPDR SP Homebuilders ETF Average Annual Total Returns Risk/Return 282 false false R283.htm 3510000 - Disclosure - State Street SPDR SP Insurance ETF N-1A Cover Sheet http://www.ssgafunds.com/35/role/N1aCover State Street SPDR SP Insurance ETF N-1A Cover Risk/Return 283 false false R284.htm 3510002 - Disclosure - State Street SPDR SP Insurance ETF Investment Objectives and Goals Sheet http://www.ssgafunds.com/35/role/RiskReturn State Street SPDR SP Insurance ETF Investment Objectives and Goals Risk/Return 284 false false R285.htm 3510003 - Disclosure - State Street SPDR SP Insurance ETF Fees and Expenses Sheet http://www.ssgafunds.com/35/role/FeesAndExpenses State Street SPDR SP Insurance ETF Fees and Expenses Risk/Return 285 false false R286.htm 3510004 - Disclosure - State Street SPDR SP Insurance ETF Investment Strategy Sheet http://www.ssgafunds.com/35/role/InvestmentStrategy State Street SPDR SP Insurance ETF Investment Strategy Risk/Return 286 false false R287.htm 3510005 - Disclosure - State Street SPDR SP Insurance ETF Investment Risks Sheet http://www.ssgafunds.com/35/role/InvestmentRisks State Street SPDR SP Insurance ETF Investment Risks Risk/Return 287 false false R288.htm 3510006 - Disclosure - State Street SPDR SP Insurance ETF Performance Management Sheet http://www.ssgafunds.com/35/role/PerformanceManagement State Street SPDR SP Insurance ETF Performance Management Risk/Return 288 false false R289.htm 3520020 - Disclosure - State Street SPDR SP Insurance ETF Annual Fund Operating Expenses Sheet http://www.ssgafunds.com/35/role/OperatingExpensesData State Street SPDR SP Insurance ETF Annual Fund Operating Expenses Risk/Return 289 false false R290.htm 3520030 - Disclosure - State Street SPDR SP Insurance ETF Expense Example Sheet http://www.ssgafunds.com/35/role/ExpenseExample State Street SPDR SP Insurance ETF Expense Example Risk/Return 290 false false R291.htm 3520050 - Disclosure - State Street SPDR SP Insurance ETF Annual Total Returns Sheet http://www.ssgafunds.com/35/role/BarChartData State Street SPDR SP Insurance ETF Annual Total Returns Risk/Return 291 false false R292.htm 3520060 - Disclosure - State Street SPDR SP Insurance ETF Average Annual Total Returns Sheet http://www.ssgafunds.com/35/role/PerformanceTableData State Street SPDR SP Insurance ETF Average Annual Total Returns Risk/Return 292 false false R293.htm 3610000 - Disclosure - State Street SPDR SP Kensho Final Frontiers ETF N-1A Cover Sheet http://www.ssgafunds.com/36/role/N1aCover State Street SPDR SP Kensho Final Frontiers ETF N-1A Cover Risk/Return 293 false false R294.htm 3610002 - Disclosure - State Street SPDR SP Kensho Final Frontiers ETF Investment Objectives and Goals Sheet http://www.ssgafunds.com/36/role/RiskReturn State Street SPDR SP Kensho Final Frontiers ETF Investment Objectives and Goals Risk/Return 294 false false R295.htm 3610003 - Disclosure - State Street SPDR SP Kensho Final Frontiers ETF Fees and Expenses Sheet http://www.ssgafunds.com/36/role/FeesAndExpenses State Street SPDR SP Kensho Final Frontiers ETF Fees and Expenses Risk/Return 295 false false R296.htm 3610004 - Disclosure - State Street SPDR SP Kensho Final Frontiers ETF Investment Strategy Sheet http://www.ssgafunds.com/36/role/InvestmentStrategy State Street SPDR SP Kensho Final Frontiers ETF Investment Strategy Risk/Return 296 false false R297.htm 3610005 - Disclosure - State Street SPDR SP Kensho Final Frontiers ETF Investment Risks Sheet http://www.ssgafunds.com/36/role/InvestmentRisks State Street SPDR SP Kensho Final Frontiers ETF Investment Risks Risk/Return 297 false false R298.htm 3610006 - Disclosure - State Street SPDR SP Kensho Final Frontiers ETF Performance Management Sheet http://www.ssgafunds.com/36/role/PerformanceManagement State Street SPDR SP Kensho Final Frontiers ETF Performance Management Risk/Return 298 false false R299.htm 3620020 - Disclosure - State Street SPDR SP Kensho Final Frontiers ETF Annual Fund Operating Expenses Sheet http://www.ssgafunds.com/36/role/OperatingExpensesData State Street SPDR SP Kensho Final Frontiers ETF Annual Fund Operating Expenses Risk/Return 299 false false R300.htm 3620030 - Disclosure - State Street SPDR SP Kensho Final Frontiers ETF Expense Example Sheet http://www.ssgafunds.com/36/role/ExpenseExample State Street SPDR SP Kensho Final Frontiers ETF Expense Example Risk/Return 300 false false R301.htm 3620050 - Disclosure - State Street SPDR SP Kensho Final Frontiers ETF Annual Total Returns Sheet http://www.ssgafunds.com/36/role/BarChartData State Street SPDR SP Kensho Final Frontiers ETF Annual Total Returns Risk/Return 301 false false R302.htm 3620060 - Disclosure - State Street SPDR SP Kensho Final Frontiers ETF Average Annual Total Returns Sheet http://www.ssgafunds.com/36/role/PerformanceTableData State Street SPDR SP Kensho Final Frontiers ETF Average Annual Total Returns Risk/Return 302 false false R303.htm 3710000 - Disclosure - State Street SPDR SP Kensho Future Security ETF N-1A Cover Sheet http://www.ssgafunds.com/37/role/N1aCover State Street SPDR SP Kensho Future Security ETF N-1A Cover Risk/Return 303 false false R304.htm 3710002 - Disclosure - State Street SPDR SP Kensho Future Security ETF Investment Objectives and Goals Sheet http://www.ssgafunds.com/37/role/RiskReturn State Street SPDR SP Kensho Future Security ETF Investment Objectives and Goals Risk/Return 304 false false R305.htm 3710003 - Disclosure - State Street SPDR SP Kensho Future Security ETF Fees and Expenses Sheet http://www.ssgafunds.com/37/role/FeesAndExpenses State Street SPDR SP Kensho Future Security ETF Fees and Expenses Risk/Return 305 false false R306.htm 3710004 - Disclosure - State Street SPDR SP Kensho Future Security ETF Investment Strategy Sheet http://www.ssgafunds.com/37/role/InvestmentStrategy State Street SPDR SP Kensho Future Security ETF Investment Strategy Risk/Return 306 false false R307.htm 3710005 - Disclosure - State Street SPDR SP Kensho Future Security ETF Investment Risks Sheet http://www.ssgafunds.com/37/role/InvestmentRisks State Street SPDR SP Kensho Future Security ETF Investment Risks Risk/Return 307 false false R308.htm 3710006 - Disclosure - State Street SPDR SP Kensho Future Security ETF Performance Management Sheet http://www.ssgafunds.com/37/role/PerformanceManagement State Street SPDR SP Kensho Future Security ETF Performance Management Risk/Return 308 false false R309.htm 3720020 - Disclosure - State Street SPDR SP Kensho Future Security ETF Annual Fund Operating Expenses Sheet http://www.ssgafunds.com/37/role/OperatingExpensesData State Street SPDR SP Kensho Future Security ETF Annual Fund Operating Expenses Risk/Return 309 false false R310.htm 3720030 - Disclosure - State Street SPDR SP Kensho Future Security ETF Expense Example Sheet http://www.ssgafunds.com/37/role/ExpenseExample State Street SPDR SP Kensho Future Security ETF Expense Example Risk/Return 310 false false R311.htm 3720050 - Disclosure - State Street SPDR SP Kensho Future Security ETF Annual Total Returns Sheet http://www.ssgafunds.com/37/role/BarChartData State Street SPDR SP Kensho Future Security ETF Annual Total Returns Risk/Return 311 false false R312.htm 3720060 - Disclosure - State Street SPDR SP Kensho Future Security ETF Average Annual Total Returns Sheet http://www.ssgafunds.com/37/role/PerformanceTableData State Street SPDR SP Kensho Future Security ETF Average Annual Total Returns Risk/Return 312 false false R313.htm 3810000 - Disclosure - State Street SPDR SP Kensho Grid Innovation ETF N-1A Cover Sheet http://www.ssgafunds.com/38/role/N1aCover State Street SPDR SP Kensho Grid Innovation ETF N-1A Cover Risk/Return 313 false false R314.htm 3810002 - Disclosure - State Street SPDR SP Kensho Grid Innovation ETF Investment Objectives and Goals Sheet http://www.ssgafunds.com/38/role/RiskReturn State Street SPDR SP Kensho Grid Innovation ETF Investment Objectives and Goals Risk/Return 314 false false R315.htm 3810003 - Disclosure - State Street SPDR SP Kensho Grid Innovation ETF Fees and Expenses Sheet http://www.ssgafunds.com/38/role/FeesAndExpenses State Street SPDR SP Kensho Grid Innovation ETF Fees and Expenses Risk/Return 315 false false R316.htm 3810004 - Disclosure - State Street SPDR SP Kensho Grid Innovation ETF Investment Strategy Sheet http://www.ssgafunds.com/38/role/InvestmentStrategy State Street SPDR SP Kensho Grid Innovation ETF Investment Strategy Risk/Return 316 false false R317.htm 3810005 - Disclosure - State Street SPDR SP Kensho Grid Innovation ETF Investment Risks Sheet http://www.ssgafunds.com/38/role/InvestmentRisks State Street SPDR SP Kensho Grid Innovation ETF Investment Risks Risk/Return 317 false false R318.htm 3810006 - Disclosure - State Street SPDR SP Kensho Grid Innovation ETF Performance Management Sheet http://www.ssgafunds.com/38/role/PerformanceManagement State Street SPDR SP Kensho Grid Innovation ETF Performance Management Risk/Return 318 false false R319.htm 3820020 - Disclosure - State Street SPDR SP Kensho Grid Innovation ETF Annual Fund Operating Expenses Sheet http://www.ssgafunds.com/38/role/OperatingExpensesData State Street SPDR SP Kensho Grid Innovation ETF Annual Fund Operating Expenses Risk/Return 319 false false R320.htm 3820030 - Disclosure - State Street SPDR SP Kensho Grid Innovation ETF Expense Example Sheet http://www.ssgafunds.com/38/role/ExpenseExample State Street SPDR SP Kensho Grid Innovation ETF Expense Example Risk/Return 320 false false R321.htm 3820050 - Disclosure - State Street SPDR SP Kensho Grid Innovation ETF Annual Total Returns Sheet http://www.ssgafunds.com/38/role/BarChartData State Street SPDR SP Kensho Grid Innovation ETF Annual Total Returns Risk/Return 321 false false R322.htm 3820060 - Disclosure - State Street SPDR SP Kensho Grid Innovation ETF Average Annual Total Returns Sheet http://www.ssgafunds.com/38/role/PerformanceTableData State Street SPDR SP Kensho Grid Innovation ETF Average Annual Total Returns Risk/Return 322 false false R323.htm 3910000 - Disclosure - State Street SPDR SP Kensho Intelligent Structures ETF N-1A Cover Sheet http://www.ssgafunds.com/39/role/N1aCover State Street SPDR SP Kensho Intelligent Structures ETF N-1A Cover Risk/Return 323 false false R324.htm 3910002 - Disclosure - State Street SPDR SP Kensho Intelligent Structures ETF Investment Objectives and Goals Sheet http://www.ssgafunds.com/39/role/RiskReturn State Street SPDR SP Kensho Intelligent Structures ETF Investment Objectives and Goals Risk/Return 324 false false R325.htm 3910003 - 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Disclosure - State Street SPDR SP Kensho New Economies Composite ETF Annual Total Returns Sheet http://www.ssgafunds.com/40/role/BarChartData State Street SPDR SP Kensho New Economies Composite ETF Annual Total Returns Risk/Return 341 false false R342.htm 4020060 - Disclosure - State Street SPDR SP Kensho New Economies Composite ETF Average Annual Total Returns Sheet http://www.ssgafunds.com/40/role/PerformanceTableData State Street SPDR SP Kensho New Economies Composite ETF Average Annual Total Returns Risk/Return 342 false false R343.htm 410000 - Disclosure - State Street SPDR ICE Preferred Securities ETF N-1A Cover Sheet http://www.ssgafunds.com/4/role/N1aCover State Street SPDR ICE Preferred Securities ETF N-1A Cover Risk/Return 343 false false R344.htm 410002 - Disclosure - State Street SPDR ICE Preferred Securities ETF Investment Objectives and Goals Sheet http://www.ssgafunds.com/4/role/RiskReturn State Street SPDR ICE Preferred Securities ETF Investment Objectives and Goals Risk/Return 344 false false R345.htm 410003 - Disclosure - State Street SPDR ICE Preferred Securities ETF Fees and Expenses Sheet http://www.ssgafunds.com/4/role/FeesAndExpenses State Street SPDR ICE Preferred Securities ETF Fees and Expenses Risk/Return 345 false false R346.htm 410004 - Disclosure - State Street SPDR ICE Preferred Securities ETF Investment Strategy Sheet http://www.ssgafunds.com/4/role/InvestmentStrategy State Street SPDR ICE Preferred Securities ETF Investment Strategy Risk/Return 346 false false R347.htm 410005 - Disclosure - State Street SPDR ICE Preferred Securities ETF Investment Risks Sheet http://www.ssgafunds.com/4/role/InvestmentRisks State Street SPDR ICE Preferred Securities ETF Investment Risks Risk/Return 347 false false R348.htm 410006 - Disclosure - State Street SPDR ICE Preferred Securities ETF Performance Management Sheet http://www.ssgafunds.com/4/role/PerformanceManagement State Street SPDR ICE Preferred Securities ETF Performance Management Risk/Return 348 false false R349.htm 4110000 - Disclosure - State Street SPDR SP Kensho Smart Mobility ETF N-1A Cover Sheet http://www.ssgafunds.com/41/role/N1aCover State Street SPDR SP Kensho Smart Mobility ETF N-1A Cover Risk/Return 349 false false R350.htm 4110002 - Disclosure - State Street SPDR SP Kensho Smart Mobility ETF Investment Objectives and Goals Sheet http://www.ssgafunds.com/41/role/RiskReturn State Street SPDR SP Kensho Smart Mobility ETF Investment Objectives and Goals Risk/Return 350 false false R351.htm 4110003 - Disclosure - State Street SPDR SP Kensho Smart Mobility ETF Fees and Expenses Sheet http://www.ssgafunds.com/41/role/FeesAndExpenses State Street SPDR SP Kensho Smart Mobility ETF Fees and Expenses Risk/Return 351 false false R352.htm 4110004 - Disclosure - State Street SPDR SP Kensho Smart Mobility ETF Investment Strategy Sheet http://www.ssgafunds.com/41/role/InvestmentStrategy State Street SPDR SP Kensho Smart Mobility ETF Investment Strategy Risk/Return 352 false false R353.htm 4110005 - Disclosure - State Street SPDR SP Kensho Smart Mobility ETF Investment Risks Sheet http://www.ssgafunds.com/41/role/InvestmentRisks State Street SPDR SP Kensho Smart Mobility ETF Investment Risks Risk/Return 353 false false R354.htm 4110006 - Disclosure - State Street SPDR SP Kensho Smart Mobility ETF Performance Management Sheet http://www.ssgafunds.com/41/role/PerformanceManagement State Street SPDR SP Kensho Smart Mobility ETF Performance Management Risk/Return 354 false false R355.htm 4120020 - Disclosure - State Street SPDR SP Kensho Smart Mobility ETF Annual Fund Operating Expenses Sheet http://www.ssgafunds.com/41/role/OperatingExpensesData State Street SPDR SP Kensho Smart Mobility ETF Annual Fund Operating Expenses Risk/Return 355 false false R356.htm 4120030 - Disclosure - State Street SPDR SP Kensho Smart Mobility ETF Expense Example Sheet http://www.ssgafunds.com/41/role/ExpenseExample State Street SPDR SP Kensho Smart Mobility ETF Expense Example Risk/Return 356 false false R357.htm 4120050 - Disclosure - State Street SPDR SP Kensho Smart Mobility ETF Annual Total Returns Sheet http://www.ssgafunds.com/41/role/BarChartData State Street SPDR SP Kensho Smart Mobility ETF Annual Total Returns Risk/Return 357 false false R358.htm 4120060 - Disclosure - State Street SPDR SP Kensho Smart Mobility ETF Average Annual Total Returns Sheet http://www.ssgafunds.com/41/role/PerformanceTableData State Street SPDR SP Kensho Smart Mobility ETF Average Annual Total Returns Risk/Return 358 false false R359.htm 420020 - Disclosure - State Street SPDR ICE Preferred Securities ETF Annual Fund Operating Expenses Sheet http://www.ssgafunds.com/4/role/OperatingExpensesData State Street SPDR ICE Preferred Securities ETF Annual Fund Operating Expenses Risk/Return 359 false false R360.htm 420030 - Disclosure - State Street SPDR ICE Preferred Securities ETF Expense Example Sheet http://www.ssgafunds.com/4/role/ExpenseExample State Street SPDR ICE Preferred Securities ETF Expense Example Risk/Return 360 false false R361.htm 420050 - Disclosure - State Street SPDR ICE Preferred Securities ETF Annual Total Returns Sheet http://www.ssgafunds.com/4/role/BarChartData State Street SPDR ICE Preferred Securities ETF Annual Total Returns Risk/Return 361 false false R362.htm 420060 - Disclosure - State Street SPDR ICE Preferred Securities ETF Average Annual Total Returns Sheet http://www.ssgafunds.com/4/role/PerformanceTableData State Street SPDR ICE Preferred Securities ETF Average Annual Total Returns Risk/Return 362 false false R363.htm 4210000 - Disclosure - State Street SPDR SP Metals and Mining ETF N-1A Cover Sheet http://www.ssgafunds.com/42/role/N1aCover State Street SPDR SP Metals and Mining ETF N-1A Cover Risk/Return 363 false false R364.htm 4210002 - Disclosure - State Street SPDR SP Metals and Mining ETF Investment Objectives and Goals Sheet http://www.ssgafunds.com/42/role/RiskReturn State Street SPDR SP Metals and Mining ETF Investment Objectives and Goals Risk/Return 364 false false R365.htm 4210003 - Disclosure - State Street SPDR SP Metals and Mining ETF Fees and Expenses Sheet http://www.ssgafunds.com/42/role/FeesAndExpenses State Street SPDR SP Metals and Mining ETF Fees and Expenses Risk/Return 365 false false R366.htm 4210004 - Disclosure - State Street SPDR SP Metals and Mining ETF Investment Strategy Sheet http://www.ssgafunds.com/42/role/InvestmentStrategy State Street SPDR SP Metals and Mining ETF Investment Strategy Risk/Return 366 false false R367.htm 4210005 - Disclosure - State Street SPDR SP Metals and Mining ETF Investment Risks Sheet http://www.ssgafunds.com/42/role/InvestmentRisks State Street SPDR SP Metals and Mining ETF Investment Risks Risk/Return 367 false false R368.htm 4210006 - Disclosure - State Street SPDR SP Metals and Mining ETF Performance Management Sheet http://www.ssgafunds.com/42/role/PerformanceManagement State Street SPDR SP Metals and Mining ETF Performance Management Risk/Return 368 false false R369.htm 4220020 - Disclosure - State Street SPDR SP Metals and Mining ETF Annual Fund Operating Expenses Sheet http://www.ssgafunds.com/42/role/OperatingExpensesData State Street SPDR SP Metals and Mining ETF Annual Fund Operating Expenses Risk/Return 369 false false R370.htm 4220030 - Disclosure - State Street SPDR SP Metals and Mining ETF Expense Example Sheet http://www.ssgafunds.com/42/role/ExpenseExample State Street SPDR SP Metals and Mining ETF Expense Example Risk/Return 370 false false R371.htm 4220050 - Disclosure - State Street SPDR SP Metals and Mining ETF Annual Total Returns Sheet http://www.ssgafunds.com/42/role/BarChartData State Street SPDR SP Metals and Mining ETF Annual Total Returns Risk/Return 371 false false R372.htm 4220060 - Disclosure - State Street SPDR SP Metals and Mining ETF Average Annual Total Returns Sheet http://www.ssgafunds.com/42/role/PerformanceTableData State Street SPDR SP Metals and Mining ETF Average Annual Total Returns Risk/Return 372 false false R373.htm 4310000 - Disclosure - State Street SPDR SP Oil and Gas Equipment and Services ETF N-1A Cover Sheet http://www.ssgafunds.com/43/role/N1aCover State Street SPDR SP Oil and Gas Equipment and Services ETF N-1A Cover Risk/Return 373 false false R374.htm 4310002 - Disclosure - State Street SPDR SP Oil and Gas Equipment and Services ETF Investment Objectives and Goals Sheet http://www.ssgafunds.com/43/role/RiskReturn State Street SPDR SP Oil and Gas Equipment and Services ETF Investment Objectives and Goals Risk/Return 374 false false R375.htm 4310003 - Disclosure - State Street SPDR SP Oil and Gas Equipment and Services ETF Fees and Expenses Sheet http://www.ssgafunds.com/43/role/FeesAndExpenses State Street SPDR SP Oil and Gas Equipment and Services ETF Fees and Expenses Risk/Return 375 false false R376.htm 4310004 - Disclosure - State Street SPDR SP Oil and Gas Equipment and Services ETF Investment Strategy Sheet http://www.ssgafunds.com/43/role/InvestmentStrategy State Street SPDR SP Oil and Gas Equipment and Services ETF Investment Strategy Risk/Return 376 false false R377.htm 4310005 - Disclosure - State Street SPDR SP Oil and Gas Equipment and Services ETF Investment Risks Sheet http://www.ssgafunds.com/43/role/InvestmentRisks State Street SPDR SP Oil and Gas Equipment and Services ETF Investment Risks Risk/Return 377 false false R378.htm 4310006 - Disclosure - State Street SPDR SP Oil and Gas Equipment and Services ETF Performance Management Sheet http://www.ssgafunds.com/43/role/PerformanceManagement State Street SPDR SP Oil and Gas Equipment and Services ETF Performance Management Risk/Return 378 false false R379.htm 4320020 - Disclosure - State Street SPDR SP Oil and Gas Equipment and Services ETF Annual Fund Operating Expenses Sheet http://www.ssgafunds.com/43/role/OperatingExpensesData State Street SPDR SP Oil and Gas Equipment and Services ETF Annual Fund Operating Expenses Risk/Return 379 false false R380.htm 4320030 - Disclosure - State Street SPDR SP Oil and Gas Equipment and Services ETF Expense Example Sheet http://www.ssgafunds.com/43/role/ExpenseExample State Street SPDR SP Oil and Gas Equipment and Services ETF Expense Example Risk/Return 380 false false R381.htm 4320050 - Disclosure - State Street SPDR SP Oil and Gas Equipment and Services ETF Annual Total Returns Sheet http://www.ssgafunds.com/43/role/BarChartData State Street SPDR SP Oil and Gas Equipment and Services ETF Annual Total Returns Risk/Return 381 false false R382.htm 4320060 - Disclosure - State Street SPDR SP Oil and Gas Equipment and Services ETF Average Annual Total Returns Sheet http://www.ssgafunds.com/43/role/PerformanceTableData State Street SPDR SP Oil and Gas Equipment and Services ETF Average Annual Total Returns Risk/Return 382 false false R383.htm 4410000 - Disclosure - State Street SPDR SP Oil and Gas Exploration and Production ETF N-1A Cover Sheet http://www.ssgafunds.com/44/role/N1aCover State Street SPDR SP Oil and Gas Exploration and Production ETF N-1A Cover Risk/Return 383 false false R384.htm 4410002 - Disclosure - State Street SPDR SP Oil and Gas Exploration and Production ETF Investment Objectives and Goals Sheet http://www.ssgafunds.com/44/role/RiskReturn State Street SPDR SP Oil and Gas Exploration and Production ETF Investment Objectives and Goals Risk/Return 384 false false R385.htm 4410003 - Disclosure - State Street SPDR SP Oil and Gas Exploration and Production ETF Fees and Expenses Sheet http://www.ssgafunds.com/44/role/FeesAndExpenses State Street SPDR SP Oil and Gas Exploration and Production ETF Fees and Expenses Risk/Return 385 false false R386.htm 4410004 - Disclosure - State Street SPDR SP Oil and Gas Exploration and Production ETF Investment Strategy Sheet http://www.ssgafunds.com/44/role/InvestmentStrategy State Street SPDR SP Oil and Gas Exploration and Production ETF Investment Strategy Risk/Return 386 false false R387.htm 4410005 - 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Disclosure - State Street SPDR SP Pharmaceuticals ETF Fees and Expenses Sheet http://www.ssgafunds.com/45/role/FeesAndExpenses State Street SPDR SP Pharmaceuticals ETF Fees and Expenses Risk/Return 395 false false R396.htm 4510004 - Disclosure - State Street SPDR SP Pharmaceuticals ETF Investment Strategy Sheet http://www.ssgafunds.com/45/role/InvestmentStrategy State Street SPDR SP Pharmaceuticals ETF Investment Strategy Risk/Return 396 false false R397.htm 4510005 - Disclosure - State Street SPDR SP Pharmaceuticals ETF Investment Risks Sheet http://www.ssgafunds.com/45/role/InvestmentRisks State Street SPDR SP Pharmaceuticals ETF Investment Risks Risk/Return 397 false false R398.htm 4510006 - Disclosure - State Street SPDR SP Pharmaceuticals ETF Performance Management Sheet http://www.ssgafunds.com/45/role/PerformanceManagement State Street SPDR SP Pharmaceuticals ETF Performance Management Risk/Return 398 false false R399.htm 4520020 - Disclosure - State Street SPDR SP Pharmaceuticals ETF Annual Fund Operating Expenses Sheet http://www.ssgafunds.com/45/role/OperatingExpensesData State Street SPDR SP Pharmaceuticals ETF Annual Fund Operating Expenses Risk/Return 399 false false R400.htm 4520030 - Disclosure - State Street SPDR SP Pharmaceuticals ETF Expense Example Sheet http://www.ssgafunds.com/45/role/ExpenseExample State Street SPDR SP Pharmaceuticals ETF Expense Example Risk/Return 400 false false R401.htm 4520050 - Disclosure - State Street SPDR SP Pharmaceuticals ETF Annual Total Returns Sheet http://www.ssgafunds.com/45/role/BarChartData State Street SPDR SP Pharmaceuticals ETF Annual Total Returns Risk/Return 401 false false R402.htm 4520060 - Disclosure - State Street SPDR SP Pharmaceuticals ETF Average Annual Total Returns Sheet http://www.ssgafunds.com/45/role/PerformanceTableData State Street SPDR SP Pharmaceuticals ETF Average Annual Total Returns Risk/Return 402 false false R403.htm 4610000 - Disclosure - State Street SPDR SP Regional Banking ETF N-1A Cover Sheet http://www.ssgafunds.com/46/role/N1aCover State Street SPDR SP Regional Banking ETF N-1A Cover Risk/Return 403 false false R404.htm 4610002 - Disclosure - State Street SPDR SP Regional Banking ETF Investment Objectives and Goals Sheet http://www.ssgafunds.com/46/role/RiskReturn State Street SPDR SP Regional Banking ETF Investment Objectives and Goals Risk/Return 404 false false R405.htm 4610003 - Disclosure - State Street SPDR SP Regional Banking ETF Fees and Expenses Sheet http://www.ssgafunds.com/46/role/FeesAndExpenses State Street SPDR SP Regional Banking ETF Fees and Expenses Risk/Return 405 false false R406.htm 4610004 - Disclosure - State Street SPDR SP Regional Banking ETF Investment Strategy Sheet http://www.ssgafunds.com/46/role/InvestmentStrategy State Street SPDR SP Regional Banking ETF Investment Strategy Risk/Return 406 false false R407.htm 4610005 - Disclosure - State Street SPDR SP Regional Banking ETF Investment Risks Sheet http://www.ssgafunds.com/46/role/InvestmentRisks State Street SPDR SP Regional Banking ETF Investment Risks Risk/Return 407 false false R408.htm 4610006 - Disclosure - State Street SPDR SP Regional Banking ETF Performance Management Sheet http://www.ssgafunds.com/46/role/PerformanceManagement State Street SPDR SP Regional Banking ETF Performance Management Risk/Return 408 false false R409.htm 4620020 - Disclosure - State Street SPDR SP Regional Banking ETF Annual Fund Operating Expenses Sheet http://www.ssgafunds.com/46/role/OperatingExpensesData State Street SPDR SP Regional Banking ETF Annual Fund Operating Expenses Risk/Return 409 false false R410.htm 4620030 - Disclosure - State Street SPDR SP Regional Banking ETF Expense Example Sheet http://www.ssgafunds.com/46/role/ExpenseExample State Street SPDR SP Regional Banking ETF Expense Example Risk/Return 410 false false R411.htm 4620050 - Disclosure - State Street SPDR SP Regional Banking ETF Annual Total Returns Sheet http://www.ssgafunds.com/46/role/BarChartData State Street SPDR SP Regional Banking ETF Annual Total Returns Risk/Return 411 false false R412.htm 4620060 - Disclosure - State Street SPDR SP Regional Banking ETF Average Annual Total Returns Sheet http://www.ssgafunds.com/46/role/PerformanceTableData State Street SPDR SP Regional Banking ETF Average Annual Total Returns Risk/Return 412 false false R413.htm 4710000 - Disclosure - State Street SPDR SP Retail ETF N-1A Cover Sheet http://www.ssgafunds.com/47/role/N1aCover State Street SPDR SP Retail ETF N-1A Cover Risk/Return 413 false false R414.htm 4710002 - Disclosure - State Street SPDR SP Retail ETF Investment Objectives and Goals Sheet http://www.ssgafunds.com/47/role/RiskReturn State Street SPDR SP Retail ETF Investment Objectives and Goals Risk/Return 414 false false R415.htm 4710003 - Disclosure - State Street SPDR SP Retail ETF Fees and Expenses Sheet http://www.ssgafunds.com/47/role/FeesAndExpenses State Street SPDR SP Retail ETF Fees and Expenses Risk/Return 415 false false R416.htm 4710004 - Disclosure - State Street SPDR SP Retail ETF Investment Strategy Sheet http://www.ssgafunds.com/47/role/InvestmentStrategy State Street SPDR SP Retail ETF Investment Strategy Risk/Return 416 false false R417.htm 4710005 - Disclosure - State Street SPDR SP Retail ETF Investment Risks Sheet http://www.ssgafunds.com/47/role/InvestmentRisks State Street SPDR SP Retail ETF Investment Risks Risk/Return 417 false false R418.htm 4710006 - Disclosure - State Street SPDR SP Retail ETF Performance Management Sheet http://www.ssgafunds.com/47/role/PerformanceManagement State Street SPDR SP Retail ETF Performance Management Risk/Return 418 false false R419.htm 4720020 - Disclosure - State Street SPDR SP Retail ETF Annual Fund Operating Expenses Sheet http://www.ssgafunds.com/47/role/OperatingExpensesData State Street SPDR SP Retail ETF Annual Fund Operating Expenses Risk/Return 419 false false R420.htm 4720030 - Disclosure - State Street SPDR SP Retail ETF Expense Example Sheet http://www.ssgafunds.com/47/role/ExpenseExample State Street SPDR SP Retail ETF Expense Example Risk/Return 420 false false R421.htm 4720050 - Disclosure - State Street SPDR SP Retail ETF Annual Total Returns Sheet http://www.ssgafunds.com/47/role/BarChartData State Street SPDR SP Retail ETF Annual Total Returns Risk/Return 421 false false R422.htm 4720060 - Disclosure - State Street SPDR SP Retail ETF Average Annual Total Returns Sheet http://www.ssgafunds.com/47/role/PerformanceTableData State Street SPDR SP Retail ETF Average Annual Total Returns Risk/Return 422 false false R423.htm 4810000 - Disclosure - State Street SPDR SP Semiconductor ETF N-1A Cover Sheet http://www.ssgafunds.com/48/role/N1aCover State Street SPDR SP Semiconductor ETF N-1A Cover Risk/Return 423 false false R424.htm 4810002 - Disclosure - State Street SPDR SP Semiconductor ETF Investment Objectives and Goals Sheet http://www.ssgafunds.com/48/role/RiskReturn State Street SPDR SP Semiconductor ETF Investment Objectives and Goals Risk/Return 424 false false R425.htm 4810003 - Disclosure - State Street SPDR SP Semiconductor ETF Fees and Expenses Sheet http://www.ssgafunds.com/48/role/FeesAndExpenses State Street SPDR SP Semiconductor ETF Fees and Expenses Risk/Return 425 false false R426.htm 4810004 - Disclosure - State Street SPDR SP Semiconductor ETF Investment Strategy Sheet http://www.ssgafunds.com/48/role/InvestmentStrategy State Street SPDR SP Semiconductor ETF Investment Strategy Risk/Return 426 false false R427.htm 4810005 - Disclosure - State Street SPDR SP Semiconductor ETF Investment Risks Sheet http://www.ssgafunds.com/48/role/InvestmentRisks State Street SPDR SP Semiconductor ETF Investment Risks Risk/Return 427 false false R428.htm 4810006 - Disclosure - State Street SPDR SP Semiconductor ETF Performance Management Sheet http://www.ssgafunds.com/48/role/PerformanceManagement State Street SPDR SP Semiconductor ETF Performance Management Risk/Return 428 false false R429.htm 4820020 - Disclosure - State Street SPDR SP Semiconductor ETF Annual Fund Operating Expenses Sheet http://www.ssgafunds.com/48/role/OperatingExpensesData State Street SPDR SP Semiconductor ETF Annual Fund Operating Expenses Risk/Return 429 false false R430.htm 4820030 - Disclosure - State Street SPDR SP Semiconductor ETF Expense Example Sheet http://www.ssgafunds.com/48/role/ExpenseExample State Street SPDR SP Semiconductor ETF Expense Example Risk/Return 430 false false R431.htm 4820050 - Disclosure - State Street SPDR SP Semiconductor ETF Annual Total Returns Sheet http://www.ssgafunds.com/48/role/BarChartData State Street SPDR SP Semiconductor ETF Annual Total Returns Risk/Return 431 false false R432.htm 4820060 - Disclosure - State Street SPDR SP Semiconductor ETF Average Annual Total Returns Sheet http://www.ssgafunds.com/48/role/PerformanceTableData State Street SPDR SP Semiconductor ETF Average Annual Total Returns Risk/Return 432 false false R433.htm 4910000 - Disclosure - State Street SPDR SP Software and Services ETF N-1A Cover Sheet http://www.ssgafunds.com/49/role/N1aCover State Street SPDR SP Software and Services ETF N-1A Cover Risk/Return 433 false false R434.htm 4910002 - Disclosure - State Street SPDR SP Software and Services ETF Investment Objectives and Goals Sheet http://www.ssgafunds.com/49/role/RiskReturn State Street SPDR SP Software and Services ETF Investment Objectives and Goals Risk/Return 434 false false R435.htm 4910003 - Disclosure - State Street SPDR SP Software and Services ETF Fees and Expenses Sheet http://www.ssgafunds.com/49/role/FeesAndExpenses State Street SPDR SP Software and Services ETF Fees and Expenses Risk/Return 435 false false R436.htm 4910004 - Disclosure - State Street SPDR SP Software and Services ETF Investment Strategy Sheet http://www.ssgafunds.com/49/role/InvestmentStrategy State Street SPDR SP Software and Services ETF Investment Strategy Risk/Return 436 false false R437.htm 4910005 - Disclosure - State Street SPDR SP Software and Services ETF Investment Risks Sheet http://www.ssgafunds.com/49/role/InvestmentRisks State Street SPDR SP Software and Services ETF Investment Risks Risk/Return 437 false false R438.htm 4910006 - Disclosure - State Street SPDR SP Software and Services ETF Performance Management Sheet http://www.ssgafunds.com/49/role/PerformanceManagement State Street SPDR SP Software and Services ETF Performance Management Risk/Return 438 false false R439.htm 4920020 - 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Disclosure - State Street SPDR Bloomberg Short Term High Yield Bond ETF Fees and Expenses Sheet http://www.ssgafunds.com/61/role/FeesAndExpenses State Street SPDR Bloomberg Short Term High Yield Bond ETF Fees and Expenses Risk/Return 571 false false R572.htm 6110004 - Disclosure - State Street SPDR Bloomberg Short Term High Yield Bond ETF Investment Strategy Sheet http://www.ssgafunds.com/61/role/InvestmentStrategy State Street SPDR Bloomberg Short Term High Yield Bond ETF Investment Strategy Risk/Return 572 false false R573.htm 6110005 - Disclosure - State Street SPDR Bloomberg Short Term High Yield Bond ETF Investment Risks Sheet http://www.ssgafunds.com/61/role/InvestmentRisks State Street SPDR Bloomberg Short Term High Yield Bond ETF Investment Risks Risk/Return 573 false false R574.htm 6110006 - Disclosure - State Street SPDR Bloomberg Short Term High Yield Bond ETF Performance Management Sheet http://www.ssgafunds.com/61/role/PerformanceManagement State Street SPDR Bloomberg Short Term High Yield Bond ETF Performance Management Risk/Return 574 false false R575.htm 6120020 - 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Disclosure - State Street SPDR Nuveen ICE High Yield Municipal Bond ETF Investment Risks Sheet http://www.ssgafunds.com/62/role/InvestmentRisks State Street SPDR Nuveen ICE High Yield Municipal Bond ETF Investment Risks Risk/Return 587 false false R588.htm 6210006 - Disclosure - State Street SPDR Nuveen ICE High Yield Municipal Bond ETF Performance Management Sheet http://www.ssgafunds.com/62/role/PerformanceManagement State Street SPDR Nuveen ICE High Yield Municipal Bond ETF Performance Management Risk/Return 588 false false R589.htm 6220020 - Disclosure - State Street SPDR Nuveen ICE High Yield Municipal Bond ETF Annual Fund Operating Expenses Sheet http://www.ssgafunds.com/62/role/OperatingExpensesData State Street SPDR Nuveen ICE High Yield Municipal Bond ETF Annual Fund Operating Expenses Risk/Return 589 false false R590.htm 6220030 - Disclosure - State Street SPDR Nuveen ICE High Yield Municipal Bond ETF Expense Example Sheet http://www.ssgafunds.com/62/role/ExpenseExample State Street SPDR Nuveen ICE High Yield Municipal Bond ETF Expense Example Risk/Return 590 false false R591.htm 6220050 - Disclosure - State Street SPDR Nuveen ICE High Yield Municipal Bond ETF Annual Total Returns Sheet http://www.ssgafunds.com/62/role/BarChartData State Street SPDR Nuveen ICE High Yield Municipal Bond ETF Annual Total Returns Risk/Return 591 false false R592.htm 6220060 - Disclosure - State Street SPDR Nuveen ICE High Yield Municipal Bond ETF Average Annual Total Returns Sheet http://www.ssgafunds.com/62/role/PerformanceTableData State Street SPDR Nuveen ICE High Yield Municipal Bond ETF Average Annual Total Returns Risk/Return 592 false false R593.htm 6310000 - Disclosure - State Street SPDR Nuveen ICE Municipal Bond ETF N-1A Cover Sheet http://www.ssgafunds.com/63/role/N1aCover State Street SPDR Nuveen ICE Municipal Bond ETF N-1A Cover Risk/Return 593 false false R594.htm 6310002 - Disclosure - State Street SPDR Nuveen ICE Municipal Bond ETF Investment Objectives and Goals Sheet http://www.ssgafunds.com/63/role/RiskReturn State Street SPDR Nuveen ICE Municipal Bond ETF Investment Objectives and Goals Risk/Return 594 false false R595.htm 6310003 - Disclosure - State Street SPDR Nuveen ICE Municipal Bond ETF Fees and Expenses Sheet http://www.ssgafunds.com/63/role/FeesAndExpenses State Street SPDR Nuveen ICE Municipal Bond ETF Fees and Expenses Risk/Return 595 false false R596.htm 6310004 - Disclosure - State Street SPDR Nuveen ICE Municipal Bond ETF Investment Strategy Sheet http://www.ssgafunds.com/63/role/InvestmentStrategy State Street SPDR Nuveen ICE Municipal Bond ETF Investment Strategy Risk/Return 596 false false R597.htm 6310005 - Disclosure - State Street SPDR Nuveen ICE Municipal Bond ETF Investment Risks Sheet http://www.ssgafunds.com/63/role/InvestmentRisks State Street SPDR Nuveen ICE Municipal Bond ETF Investment Risks Risk/Return 597 false false R598.htm 6310006 - Disclosure - State Street SPDR Nuveen ICE Municipal Bond ETF Performance Management Sheet http://www.ssgafunds.com/63/role/PerformanceManagement State Street SPDR Nuveen ICE Municipal Bond ETF Performance Management Risk/Return 598 false false R599.htm 6320020 - Disclosure - State Street SPDR Nuveen ICE Municipal Bond ETF Annual Fund Operating Expenses Sheet http://www.ssgafunds.com/63/role/OperatingExpensesData State Street SPDR Nuveen ICE Municipal Bond ETF Annual Fund Operating Expenses Risk/Return 599 false false R600.htm 6320030 - Disclosure - State Street SPDR Nuveen ICE Municipal Bond ETF Expense Example Sheet http://www.ssgafunds.com/63/role/ExpenseExample State Street SPDR Nuveen ICE Municipal Bond ETF Expense Example Risk/Return 600 false false R601.htm 6320050 - Disclosure - State Street SPDR Nuveen ICE Municipal Bond ETF Annual Total Returns Sheet http://www.ssgafunds.com/63/role/BarChartData State Street SPDR Nuveen ICE Municipal Bond ETF Annual Total Returns Risk/Return 601 false false R602.htm 6320060 - Disclosure - State Street SPDR Nuveen ICE Municipal Bond ETF Average Annual Total Returns Sheet http://www.ssgafunds.com/63/role/PerformanceTableData State Street SPDR Nuveen ICE Municipal Bond ETF Average Annual Total Returns Risk/Return 602 false false R603.htm 6410000 - Disclosure - State Street SPDR Nuveen ICE Short Term Municipal Bond ETF N-1A Cover Sheet http://www.ssgafunds.com/64/role/N1aCover State Street SPDR Nuveen ICE Short Term Municipal Bond ETF N-1A Cover Risk/Return 603 false false R604.htm 6410002 - Disclosure - State Street SPDR Nuveen ICE Short Term Municipal Bond ETF Investment Objectives and Goals Sheet http://www.ssgafunds.com/64/role/RiskReturn State Street SPDR Nuveen ICE Short Term Municipal Bond ETF Investment Objectives and Goals Risk/Return 604 false false R605.htm 6410003 - Disclosure - State Street SPDR Nuveen ICE Short Term Municipal Bond ETF Fees and Expenses Sheet http://www.ssgafunds.com/64/role/FeesAndExpenses State Street SPDR Nuveen ICE Short Term Municipal Bond ETF Fees and Expenses Risk/Return 605 false false R606.htm 6410004 - Disclosure - State Street SPDR Nuveen ICE Short Term Municipal Bond ETF Investment Strategy Sheet http://www.ssgafunds.com/64/role/InvestmentStrategy State Street SPDR Nuveen ICE Short Term Municipal Bond ETF Investment Strategy Risk/Return 606 false false R607.htm 6410005 - Disclosure - State Street SPDR Nuveen ICE Short Term Municipal Bond ETF Investment Risks Sheet http://www.ssgafunds.com/64/role/InvestmentRisks State Street SPDR Nuveen ICE Short Term Municipal Bond ETF Investment Risks Risk/Return 607 false false R608.htm 6410006 - Disclosure - State Street SPDR Nuveen ICE Short Term Municipal Bond ETF Performance Management Sheet http://www.ssgafunds.com/64/role/PerformanceManagement State Street SPDR Nuveen ICE Short Term Municipal Bond ETF Performance Management Risk/Return 608 false false R609.htm 6420020 - Disclosure - State Street SPDR Nuveen ICE Short Term Municipal Bond ETF Annual Fund Operating Expenses Sheet http://www.ssgafunds.com/64/role/OperatingExpensesData State Street SPDR Nuveen ICE Short Term Municipal Bond ETF Annual Fund Operating Expenses Risk/Return 609 false false R610.htm 6420030 - Disclosure - State Street SPDR Nuveen ICE Short Term Municipal Bond ETF Expense Example Sheet http://www.ssgafunds.com/64/role/ExpenseExample State Street SPDR Nuveen ICE Short Term Municipal Bond ETF Expense Example Risk/Return 610 false false R611.htm 6420050 - 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Disclosure - State Street SPDR Portfolio Corporate Bond Index ETF Investment Risks Sheet http://www.ssgafunds.com/66/role/InvestmentRisks State Street SPDR Portfolio Corporate Bond Index ETF Investment Risks Risk/Return 627 false false R628.htm 6610006 - Disclosure - State Street SPDR Portfolio Corporate Bond Index ETF Performance Management Sheet http://www.ssgafunds.com/66/role/PerformanceManagement State Street SPDR Portfolio Corporate Bond Index ETF Performance Management Risk/Return 628 false false R629.htm 6620020 - Disclosure - State Street SPDR Portfolio Corporate Bond Index ETF Annual Fund Operating Expenses Sheet http://www.ssgafunds.com/66/role/OperatingExpensesData State Street SPDR Portfolio Corporate Bond Index ETF Annual Fund Operating Expenses Risk/Return 629 false false R630.htm 6620030 - Disclosure - State Street SPDR Portfolio Corporate Bond Index ETF Expense Example Sheet http://www.ssgafunds.com/66/role/ExpenseExample State Street SPDR Portfolio Corporate Bond Index ETF Expense Example Risk/Return 630 false false R631.htm 6620050 - 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