Share-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2015

For the three and six months ended June 30, 2015 and 2014, we recorded share-based compensation and related tax benefits as follows:



	Three months ended June 30,						Six months ended June 30,
(Dollars in thousands)	2015			2014			2015			2014
Share-based compensation expense	$	8,215		$	7,687		$	15,986		$	14,765
Income tax benefit related to share-based compensation expense	(2,692		)	(2,515		)	(5,330		)	(4,675		)

As of June 30, 2015, unrecognized share-based compensation expense was as follows:



(Dollars in thousands)	Unrecognized Expense		Average Expected Recognition Period - in Years
Stock options	$	14,464	2.63
Restricted stock units	46,877		2.81
Total unrecognized share-based compensation expense	$	61,341

The table below provides stock option information related to the 2006 Equity Incentive Plan for the six months ended June 30, 2015:



	Options		Weighted Average Exercise Price		Weighted Average Remaining Contractual Life in Years	Aggregate Intrinsic Value of In-The- Money Options
Outstanding at December 31, 2014	1,394,888		$	66.03
Granted	122,120		129.30
Exercised	(286,282	)	51.34
Forfeited	(17,383	)	86.09
Expired	(1,520	)	48.76
Outstanding at June 30, 2015	1,211,823		75.61		4.22	$	82,851,473
Vested and expected to vest at June 30, 2015	1,168,962		74.62		4.17	81,084,324
Exercisable at June 30, 2015	678,385		59.89		3.23	57,044,065

The table below provides information for restricted stock units under the 2006 Equity Incentive Plan for the six months ended June 30, 2015:



	Shares		Weighted Average Grant Date Fair Value
Nonvested at December 31, 2014	614,666		$	79.92
Granted	230,120		129.15
Vested	(208,257	)	73.94
Forfeited	(15,638	)	85.25
Nonvested at June 30, 2015	620,891		100.04