Average Value of Dividends or Other Earnings Paid on Stock or Option Awards not Otherwise Reflected in Fair Value or Total Compensation [Member] Equity Additions [Member] Equity Deductions [Member] Fair Value as of Vesting Date of Equity Awards Granted and Vested in the Year [Member] Fair Value at the End of the Prior Year of Equity Awards that Failed to Meet Vesting Conditions in the Year [Member] Total Equity Award Adjustments [Member] Year End Fair Value of Current Year Equity Awards [Member] Year Over Year Change in Fair Value of Equity Awards Granted in Prior Year that Vested in the Year [Member] Year Over Year Change in Fair Value of Outstanding and Unvested Equity Awards [Member]