Change in Fair Value of Outstanding Unvested Stock Awards from Prior Years [Member] Change in fair value of outstanding unvested stock awards from prior years. Change in Fair Value of Stock and Option Awards from Prior Years that Vested in the Covered Year [Member] Change in fair value of stock and option awards from prior years that vested in the covered year. Fair Value as of Year End for Stock Awards Granted in the Covered Year [Member] Fair value as of year end for stock awards granted in the covered year. Fair Value of Stock Awards Forfeited during the Covered Year [Member] Fair value of stock awards forfeited during the covered year. Stock Award Values Reported in SCT for the Covered Year [Member] Stock award values reported in SCT for the covered year.