Equity Incentive Plans (Tables)

6 Months Ended

Jun. 30, 2014

Share-based Compensation [Abstract]

Summary Of Share Option Activity

A summary of the Company’s share option activity and related information is as follows:

	Number of shares		Option price per share					Weighted avg. exercise price
Outstanding at December 31, 2013	840,665		$	18.18	—	$	65.50	$	40.85
Exercised	(24,602	)	32.50		—	47.99		40.82
Granted	172,178		51.64		—	51.64		51.64
Outstanding at June 30, 2014	988,241		$	18.18	—	$	65.50	$	42.73

Summary Of Outstanding Options

The following table summarizes outstanding options at June 30, 2014:

Exercise price range	Options outstanding	Weighted avg. life remaining	Weighted avg. exercise price		Aggregate intrinsic value  (in thousands)
$ 18.18 - 19.99	201,859	4.6
20.00 - 29.99	—	0.0
30.00 - 39.99	15,050	5.6
40.00 - 49.99	488,301	5.2
50.00 - 59.99	189,678	9.2
60.00 - 65.50	93,353	2.5
	988,241	5.6	$	42.73	$	13,824

Summary Of Exercisable Options

The following table summarizes exercisable options at June 30, 2014:

Exercise price range	Options outstanding	Weighted avg. life  remaining	Weighted avg. exercise price		Aggregate  intrinsic value (in thousands)
$ 18.18 - 19.99	201,859	4.6
20.00 - 29.99	—	0.0
30.00 - 39.99	15,050	5.6
40.00 - 49.99	344,397	4.0
50.00 - 59.99	11,875	4.6
60.00 - 65.50	93,353	2.5
	666,534	4.0	$	39.48	$	11,752

Summary Of Nonvested Share Activity

A summary of the Company’s nonvested share activity and related information is as follows:

	Number  of shares		Weighted avg. grant  date fair value		Weighted avg. life remaining
Outstanding at December 31, 2013	371,864		$	46.00
Granted	280,193		51.64
Vested	(149,324	)	45.26
Outstanding at June 30, 2014	502,733		$	49.36	1.50

Summary Of Restricted Share Unit Activity

A summary of the Company’s restricted share unit activity and related information is as follows:

	Number  of Shares		Weighted Average Grant Date Fair Value		Weighted Average Life Remaining
Outstanding at December 31, 2013	17,530		$	58.38
Granted	19,685		53.55
Vested	(17,530	)	58.38
Outstanding at June 30, 2014	19,685		$	53.55	0.88