Accounting for Stock-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2011

Accounting for Stock-Based Compensation [Abstract]

Impact of Total Compensation Expense

	Three Months Ended						Six Months Ended
	June 30,						June 30,
	2011			2010			2011			2010
Effect on income from continuing operations before income taxes	$	(10,814	)	$	(10,655	)	$	(20,732	)	$	(20,418	)
Effect on net income	$	(6,867	)	$	(6,473	)	$	(13,165	)	$	(12,404	)

Fair value of stock options

	Three Months Ended						Six Months Ended
	June 30,						June 30,
	2011			2010			2011			2010
Expected volatility		38.1	%		35.3	%		31.5	%		33.6	%
Expected dividends		—			—			—			—
Expected term	4 years			3 years			4 years			3.1 years
Risk-free interest rate		1.35	%		1.20	%		1.73	%		1.47	%

Options outstanding and exercisable

						Weighted -
				Weighted -		Average	Aggregate
				Average		Remaining	Intrinsic
				Exercise		Contractual	Value as of
	Shares			Price		Term	June 30, 2011
Outstanding at December 31, 2010		7,834,332		$	32.08
Granted		1,329,000			37.96
Exercised		(595,431	)		30.44
Forfeited and cancelled		(64,508	)		34.84
Outstanding at March 31, 2011		8,503,393			33.10
Granted		45,000			28.12
Exercised		(23,579	)		29.98
Forfeited and cancelled		(50,342	)		32.70
Outstanding at June 30, 2011		8,474,472		$	33.08	5.8 years	$	9,910
Exercisable at June 30, 2011		5,804,556		$	32.78	4.3 years	$	7,468

Restricted stock outstanding

				Weighted -
				Average
				Grant Date
	Shares			Fair Value
Unvested at December 31, 2010		2,125,291		$	27.92
Granted		1,084,949			37.96
Vested		(962,662	)		27.27
Forfeited		—			—
Unvested at March 31, 2011		2,247,578			33.04
Granted		8,000			28.12
Vested		(12,000	)		33.49
Forfeited		—			—
Unvested at June 30, 2011		2,243,578			33.02

Deferred Director's Fee

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2011		2010		2011		2010
Directors’ fees earned and deferred into plan	$	55	$	45	$	110	$	90
Share equivalent units		2,142		1,331		3,517		2,549