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     "lang": {
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    "rr_PerformanceMeasureDomain": {
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     "lang": {
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     "lang": {
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        "documentation": "This element represents disclosure when presented performance information for a class is different from the class selected for the most immediately preceding period (Form N-1A, Item 2., Instr. 3.(c).(ii).(D))."
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     "lang": {
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    "rr_PerformanceTableMarketIndexChanged": {
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     "lang": {
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     "auth_ref": [
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    "rr_PerformanceTableOneClassOfAfterTaxShown": {
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     "lang": {
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        "label": "Performance Table One Class of after Tax Shown [Text]",
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     "auth_ref": [
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    },
    "rr_PerformanceTableUsesHighestFederalRate": {
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     "presentation": [
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     "lang": {
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       "role": {
        "terseLabel": "Performance Table Uses Highest Federal Rate",
        "label": "Performance Table Uses Highest Federal Rate",
        "documentation": "Provide a brief explanation that after-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes."
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     },
     "auth_ref": [
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    "rr_PortfolioTurnoverHeading": {
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     "lang": {
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       "role": {
        "terseLabel": "Portfolio Turnover [Heading]",
        "label": "Portfolio Turnover [Heading]",
        "documentation": "Disclose the portfolio turnover rate provided in response to Item 14(a) for the most recent fiscal year (or for such shorter period as the Fund has been in operation). Disclose the period for which the information is provided if less than a full fiscal year. A Fund that is a Money Market Fund may omit the portfolio turnover information required by this Item."
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     "auth_ref": [
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    },
    "rr_PortfolioTurnoverRate": {
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     "lang": {
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        "label": "Portfolio Turnover, Rate",
        "documentation": "This element represents the rate of portfolio turnover presented as a percentage (SEC Form N-1A 2006-09-14 A.3.example.3 Portfolio Turnover  A.3.instructions.5 Portfolio Turnover)."
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     "lang": {
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        "label": "Portfolio Turnover [Text Block]",
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     "lang": {
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        "label": "Prospectus Date",
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     "lang": {
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     "lang": {
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     "lang": {
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     "presentation": [
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     "lang": {
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        "label": "Redemption Fee",
        "documentation": "\"Redemption Fee\" (as a percentage of amount redeemed, if applicable) If the Fund is an Exchange-Traded Fund and issues or redeems shares in creation units of not less than 25,000 shares each, exclude any fees charged for the purchase and redemption of the Fund's creation units.   \"Redemption Fee\" includes a fee charged for any redemption of the Fund's shares, but does not include a deferred sales charge (load) imposed upon redemption."
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    "rr_RedemptionFeeOverRedemption": {
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     "presentation": [
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     "lang": {
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        "label": "Redemption Fee (as a percentage of Amount Redeemed)",
        "documentation": "\"Redemption Fee\" (as a percentage of amount redeemed, if applicable) If the Fund is an Exchange-Traded Fund and issues or redeems shares in creation units of not less than 25,000 shares each, exclude any fees charged for the purchase and redemption of the Fund's creation units.   \"Redemption Fee\" includes a fee charged for any redemption of the Fund's shares, but does not include a deferred sales charge (load) imposed upon redemption."
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     "lang": {
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        "terseLabel": "Risk [Axis]",
        "label": "Risk [Axis]",
        "documentation": "The Risk Axis has members that distinguish different !TODO!"
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     },
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    "rr_RiskCaption": {
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     "lang": {
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        "label": "Risk Caption",
        "documentation": "Narrative Risk Disclosure."
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     "lang": {
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