Compensation Programs (Schedule Of Option Award Activity) (Detail) (USD $)	12 Months Ended
	Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Option awards outstanding at beginning of year	256,250
Exercises	(158,750)
Option awards outstanding at end of year	97,500
Weighted Average Exercise Price, Option awards outstanding at beginning of year	$ 10.71
Weighted Average Exercise Price, Exercises	$ 10.14
Weighted Average Exercise Price, Option awards outstanding at end of year	$ 11.63