75000 - Document - Document and Entity Information link:presentationLink link:calculationLink link:definitionLink Amendment Flag Document Type Entity Central Index Key Change In Fair Value Of Outstanding Unvested Stock Awards Granted In Prior Fiscal Years [Member] Change in fair value of outstanding unvested stock awards granted in prior fiscal years. Change in Fair Value of Outstanding Unvested Stock Awards Granted in Prior Fiscal Years Fair Value At Fiscal Year End Of Outstanding Unvested Stock Awards Granted In Fiscal Year [Member] Fair value at fiscal year-end of outstanding unvested stock awards granted in fiscal year. Fair Value at Fiscal Year-End of Outstanding Unvested Stock Awards Granted in Fiscal Year Grant Date Fair Value Of Stock Awards Granted In Fiscal Year [Member] Grant date fair value of stock awards granted in fiscal year member. Grant Date Fair Value of Stock Awards Granted in Fiscal Year Cover [Abstract] Change In Fair Value As Of Vesting Date Of Stock Awards Granted In Prior Fiscal Years For Which Applicable Vesting Conditions Were Satisfied During Fiscal Year [Member] Change in fair value as of vesting date of stock awards granted in prior fiscal years for which applicable vesting conditions were satisfied during fiscal year. Change in Fair Value as of Vesting Date of Stock Awards Granted in Prior Fiscal Years For Which Applicable Vesting Conditions Were Satisfied During Fiscal Year Entity Registrant Name