Stock Compensation Plans (Tables)

6 Months Ended

Jun. 30, 2013

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Stock-Based Compensation Expense and Related Tax Benefits

Stock-based compensation expense and related tax benefits were as follows:

	Three Months Ended June 30,						Six Months Ended June 30,
(DOLLARS IN THOUSANDS)	2013			2012			2013			2012
Equity-based awards	$	9,527		$	8,282		$	14,050		$	11,272
Liability-based awards		600			640			2,051			1,571
Total stock-based compensation expense		10,127			8,922			16,101			12,843
Less: tax benefit		(3,114	)		(2,772	)		(5,021	)		(4,035	)
Total stock-based compensation expense, after tax	$	7,013		$	6,150		$	11,080		$	8,808