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         | Share-based Payment Award, Employee Stock Purchase Plan, Valuation Assumptions [Hierarchy] | 
      
         
         | SharebasedPaymentAwardEmployeeStockPurchasePlanValuationAssumptions | 
      
         
         | StockCompensation | 
      
         
         | Disclosure of the significant assumptions used during the year to estimate the fair value of employee stock purchase plans, including, but not limited to: (a) expected term, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. | 
      
         
         | Missing [Table] | 
      
         
         |  | 
      
         
         | us-gaap:ScheduleOfShareBasedPaymentAwardEmployeeStockPurchasePlanValuationAssumptionsTableTextBlock | 
      
         
         | List of human readable examples | 
      
         
         | List of machine readable examples | 
      
         
         | http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsStockCompensation | XML | HTML |