Share-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2018

A summary of the RSUs outstanding under the LTIP for the six months ended June 30, 2018 is as follows:

	Restricted Share Units
	Performance and Service Required ⁽¹⁾			Service Required		Total Restricted Share Units			Weighted-Average Grant-Date Fair Value
Nonvested as of January 1, 2018		200,572			18,214		218,786		$	52.68
Granted		63,122			8,155		71,277			73.86
Vested		(19,277	)		0		(19,277	)		45.85
Forfeited		(30,793	)		0		(30,793	)		45.85
Nonvested as of June 30, 2018		213,624			26,369		239,993		$	53.89

(1)	Nonvested performance-based RSUs are reflected above at the maximum performance achievement level.

Stock option activity under the Company’s LTIP for six months ended June 30, 2018 was as follows:

	Number of Shares			Weighted Average Exercise Price per Share		Weighted Average Remaining Contractual Term (Years)		Aggregate Intrinsic Value (000's)
Outstanding at January 1, 2018		29,250		$	56.84
Granted		0		$	0.00
Exercised		(1,500	)	$	52.81
Forfeited	0			$	0.00
Outstanding (vested and expected to vest) at June 30, 2018		27,750		$	57.05		6.7	$	880
Exercisable at June 30, 2018		23,125		$	59.44		6.1	$	678

Activity in the Company’s 1999 Stock Option Plan for the six months ended June 30, 2018 was as follows:

	Number of Shares		Weighted Average Exercise Price per Share		Weighted Average Remaining Contractual Term (Years)		Aggregate Intrinsic Value (000's)
Outstanding at January 1, 2018		750	$	39.10
Granted		0	$	0.00
Exercised	0		$	0.00
Forfeited		0	$	0.00
Outstanding (exercisable and vested) at June 30, 2018		750	$	39.10		1.3	$	37