Document and Entity Information [Abstract] Document Type Entity Registrant Name Entity Central Index Key Amendment Flag Year end fair value of performance awards granted in current year adjusted to compensation. Performance Based Awards, Adjustments To Compensation, Year End Fair Value Of Awards Granted In Current Year Year-end Fair Value of Unvested Awards Granted During the Year NA Fair Value at Prior Year-end of Awards Forfeited During the Year [Member] Fair Value at Prior Year-end of Awards Forfeited During the Year Change in fair value as of year end of outstanding and unvested performance awards granted in prior years adjusted to compensation. Performance Based Awards, Adjustments To Compensation, Change In Fair Value As Of Year End Of Outstanding And Unvested Awards Granted In Prior Years Year-over-year Change in Fair Value of Unvested Awards Granted in Prior Year(s) Change in fair value as of year end fair value of performance awards forfeited in current year adjusted to compensation. Performance Based Awards, Adjustments To Compensation, Year End Fair Value Of Awards Forfeited In Current Year Fair Value at Prior Year-end of Awards Forfeited During the Year Value of performance awards adjusted to compensation. Performance Based Awards, Adjustments To Compensation CAP Adjustment