Year over Year Change in Fair Value of Outstanding and Unvested Equity Awards [Member] Average Value of Dividends or other Earnings Paid on Stock or Option Awards not Otherwise Reflected in Fair Value or Total Compensation [Member] Year over year Change in Fair Value of Equity Awards Granted in Prior Year that Vested in the Year [Member] Amounts reported the "Stock Awards" and "Option Awards" in Summary Compensation table for applicable fiscal year [Member] Year End Fair Value of Current Year Unvested Equity Awards [Member] Donald S. Barbour [Member]