Stock-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2011

Stock-Based Compensation [Abstract]

Schedule Of Stock-Based Compensation Expense And Realized Excess Tax Benefits

	Three Months Ended September 30,						Nine Months Ended September 30,
	2011			2010			2011			2010
Selling and administrative expenses	$	1,058		$	1,103		$	5,320		$	4,125
Total stock-based compensation expense included in operating expenses	$	1,058		$	1,103		$	5,320		$	4,125
Income before income taxes		(1,058	)		(1,103	)		(5,320	)		(4,125	)
Provision for income taxes		279			327			1,511			1,291
Net income	$	(779	)	$	(776	)	$	(3,809	)	$	(2,834	)
Net cash provided by operating activities	$	(300	)	$	(482	)	$	(2,537	)	$	(2,385	)
Net cash used in financing activities	$	300		$	482		$	2,537		$	2,385

Schedule Of Stock Option Awards

	Shares			Outstanding Weighted- Average Exercise Price (per share)		Aggregate Intrinsic Value		Weighted- Average Remaining Contractual Life
Outstanding at December 31, 2010		863		$	32.69
Granted		183		$	76.55
Exercised		(186	)	$	30.49
Forfeited		(49	)	$	47.22
Expired or canceled		—		$	—
Outstanding at September 30, 2011		811		$	42.10	$	19,554		4.3 years
Exercisable at September 30, 2011		447		$	32.56	$	13,880		3.3 years

Schedule Of Other Information About Stock Options

	Three Months Ended September 30,				Nine Months Ended September 30,
	2011		2010		2011		2010
Weighted-average estimated grant-date fair value of employee stock options granted (per share)	$	29.70			$	28.26
Total pre-tax intrinsic value of stock options exercised	$	1,306	$	3,625	$	8,741	$	11,855
Pre-tax unrecognized compensation expense, net of estimated forfeitures as of September 30, 2011					$	4,212
Weighted-average period (in years) to be recognized as expense						2.0

Schedule Of Weighted-Average Valuation Assumptions

	Three Months Ended September 30,						Nine Months Ended September 30,
	2011			2010			2011			2010
Assumptions:
Risk-free interest rate		1.3	%		1.6	%		1.9	%		2.3	%
Dividend yield		0.2	%		0.5	%		0.3	%		0.5	%
Volatility factor		45			45			44			43
Expected life (in years)		3.8			4.4			4.3			4.7

Schedule Of Restricted Share Award Activity

	Shares			Weighted- Average Grant- Date Fair Value (per share)
Nonvested at December 31, 2010		161		$	35.13
Granted		44		$	77.89
Vested		(51	)	$	38.27
Forfeited		(10	)	$	43.18
Nonvested at September 30, 2011		144		$	46.55

Schedule Of Other Information About Restricted Share Awards

	Nine Months Ended September 30,
	2011		2010
Total fair value of awards vested during the period	$	3,828	$	950
Pre-tax unrecognized compensation expense, net of estimated forfeitures as of September 30, 2011	$	3,327
Weighted-average period (in years) to be recognized as expense		2.0