Share Based Compensation (Tables)

12 Months Ended

Dec. 31, 2011

Share Based Compensation [Abstract]

Share based compensation effect on earnings per share

Share-based compensation expense reduced the Company's results of operations as follows (in thousands, except per share amounts):

	2011			2010			2009
Share-based compensation expense recognized:
General and administrative, options	$	-		$	41		$	214
General and administrative, Units		4,145			3,803			3,624
Related deferred income tax benefit		(1,652	)		(1,532	)		(1,529	)
Decrease in net income	$	2,493		$	2,312		$	2,309
Decrease in basic earnings per share	$	0.10		$	0.09		$	0.09
Decrease in diluted earnings per share	$	0.10		$	0.09		$	0.09

Stock option activity

The following is a summary of stock option activity:

	2011					2010					2009
	Number of Options			Weighted Average Exercise Price		Number of Options			Weighted Average Exercise Price		Number of Options			Weighted Average Exercise Price
Outstanding, beginning of year		428,000		$	12.28		454,400		$	12.37		462,900		$	12.22
Options granted		-		$	-		-		$	-		-		$	-
Options exercised		(168,850	)	$	6.89		(25,500	)	$	14.19		(8,500	)	$	3.96
Options cancelled		-		$	-		(900	)	$	3.62		-		$	-
Outstanding, end of year		259,150		$	15.80		428,000		$	12.28		454,400		$	12.37
Exercisable, end of year		259,150		$	15.80		428,000		$	12.28		448,400		$	12.28

Restricted stock units activity

The following is a summary of Unit activity:

	2011					2010					2009
	Units			Weighted Average Grant Fair Value		Units			Weighted Average Grant Fair Value		Units			Weighted Average Grant Fair Value
Outstanding, beginning of year		399,684		$	28.40		363,924		$	32.47		271,264		$	45.90
Granted		109,834		$	42.12		166,205		$	22.98		198,350		$	19.35
Vested		(135,957	)	$	31.26		(118,245	)	$	33.25		(82,340	)	$	41.57
Forfeited		(10,834	)	$	30.33		(12,200	)	$	43.58		(23,350	)	$	44.98
Non-vested Units at end of year		362,727		$	31.43		399,684		$	28.40		363,924		$	32.47

Stock options outstanding and exercisable by price range

The following table summarizes information regarding options outstanding and options exercisable at December 31, 2011:

	Outstanding and Exercisable
Range of Exercise Prices	Number of Options		Average Remaining Contractual Life (Years)		Weighted Average Exercise Price		Aggregate Intrinsic Value (000s)
$2.98 - $4.58		55,350		0.70	$	3.42	$	1,293
$16.90 - $18.80		114,450		1.84	$	17.06	$	1,113
$21.50 - $22.67		89,350		2.65	$	21.85	$	441
		259,150		1.87	$	15.80	$	2,847

Restricted stock units outstanding by price range

The following table summarizes information regarding Units outstanding at December 31, 2011:

		Outstanding
Range of Grant Prices		Number of Units		Average Remaining Contractual Life (Years)		Weighted Average Grant Fair Value
	$16.53 - $31.69		301,607		2.65	$	29.30
	$35.67 - $39.43		32,400		1.44	$	38.60
	$40.73 - $45.70		19,600		1.42	$	44.59
	$52.47 - $62.07		3,900		0.22	$	56.52
	$66.35 - $81.18		5,220		0.48	$	70.42
			362,727		2.42	$	31.84