Share Based Compensation (Tables)

12 Months Ended

Dec. 31, 2012

Share Based Compensation Tables [Abstract]

Valuation and Expense Information

Valuation and Expense Information
		Year Ended December 31,
		2012		2011		2010
Total cost of share-based payment plans	$	15,835	$	21,688	$	21,805
Amounts capitalized in fixed assets	$	5,079	$	7,769	$	8,861
Amounts charged against income, before
income tax benefit	$	10,756	$	13,919	$	12,944
Amount of related income tax benefit recognized
in income	$	4,463	$	4,997	$	4,595

Securities Authorized for Issuance Under Equity Compensation Plans

			Number of Securities
			Remaining Available
	Number of		for Future Issuance
	Securities to	Weighted	Under Equity
	be Issued	Average	Compensation Plans
	Upon Exercise of	Exercise Price of	(Excluding Securities
	Outstanding	Outstanding	Reflected in the
Plan Category	Options	Options	First Column)
Equity compensation plans approved by
security holders	1,357	$49.03	3,075
Equity compensation plans not approved
by security holders	n/a	n/a	n/a
Total	1,357	$49.03	3,075

Changes in Stock Options Outstanding

		Weighted
		Average
	Number of	Exercise Price
	Options	(US$)
Balance, December 31, 2009	3,504	$ 1.49	to	$ 98.87
Forfeited	(68)	$ 51.60	to	$ 76.01
Exercised	(1,206)	$ 1.49	to	$ 45.95
Balance, December 31, 2010	2,230	$ 3.91	to	$ 98.87
Forfeited	(99)	$ 51.60	to	$ 75.18
Exercised	(672)	$ 3.91	to	$ 33.57
Balance, December 31, 2011	1,459	$ 16.97	to	$ 98.87
Forfeited	(68)	$ 25.08	to	$ 75.18
Exercised	(34)	$ 16.97	to	$ 19.18
Balance, December 31, 2012	1,357	$ 16.97	to	$ 98.87

Share Based Compensation by Exercise Price Table

The following table summarizes information about the stock options outstanding and exercisable at December 31, 2012:
					Options Outstanding and Exercisable
						Weighted	Weighted
						Average	Average	Aggregate
					Number	Remaining	Exercise	Intrinsic
Range of Exercise Price					Outstanding	Contractual Life	Price	Value
						(Years)
$	16.97	-	$	16.97	40	1.32	$ 16.97	$ 46
$	25.68	-	$	55.58	604	2.61	$ 39.21	$ -
$	46.05	-	$	65.04	166	3.53	$ 56.44	$ -
$	49.05	-	$	65.94	362	4.31	$ 54.66	$ -
$	51.14	-	$	98.87	185	5.42	$ 70.24	$ -

Weighted Average Grant Date Fair Value of Stock Options

		2012		2011		2010
Non-vested share options at beginning of year	$	-	$	30.72	$	26.28
Non-vested share options at end of year	$	-	$	-	$	30.72
Options vested during the year	$	-	$	30.73	$	23.86
Options forfeited during the year	$	27.05	$	25.80	$	28.36