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Stockholders' Equity and Share Based Compensation Plans (Tables)

6 Months Ended

Jun. 30, 2012

Stockholders' Equity and Share Based Compensation Plans [Abstract]

Assumptions used to determine the fair value of options

		2012				2011
Dividend yield			0.0	%			0.2	%
Expected life			5 years				5 years
Volatility			60.1	%			78.3	%
Risk free interest rate			0.43	%			1.22	%

Summary of transactions of the Company's stock option plans

		Number of Options				Weighted Average Exercise Price
Outstanding at March 31, 2012			1,297,438			$	5.68
Exercised			(176,061	)		$	2.90
Forfeited			(4,735	)		$	9.78
Outstanding at June 30, 2012			1,116,642			$	6.10

		Number of Options				Weighted Average Exercise Price				Weighted Average Fair Value
Outstanding at December 31, 2011			1,229,220			$	5.44
Granted:
At discount			71,132			$	0.00			$	21.39
At market value			31,012			$	29.56			$	16.70
Exercised			(208,409	)		$	3.51
Forfeited			(6,313	)		$	10.08
Outstanding at June 30, 2012			1,116,642			$	6.10

Summary of information about options outstanding

Range of Exercise Price		Number Outstanding				Weighted Average Remaining Life in Years				Weighted Average Exercise Price				Number Exercisable and Fully Vested				Weighted Average Remaining Life in Years				Weighted Average Exercise Price
$0-$5			641,549				7.43			$	0.57				102,855				6.25			$	1.21
$5-$10			22,654				3.00			$	9.66				22,654				3.00			$	9.66
$10-$15			386,946				2.51			$	11.48				0				0.00			$	0.00
$20-$25			12,385				5.68			$	20.53				12,385				5.68			$	20.53
$25-$30			51,728				8.29			$	28.57				12,416				4.65			$	27.09
$30-$35			1,380				8.87			$	32.60				0				0.00			$	0.00
			1,116,642												150,310

Schedule of fair value of liability cash settled stock appreciation rights

(in millions)		2012				2011
Balance at January 1		$	2.2			$	0.8
Compensation charge			3.0				1.6
Balance at June 30		$	5.2			$	2.4

Assumptions used in the Monte Carlo model

		2012				2011
Dividend yield			0.0	%			0.2	%
Volatility			29.5	%			45.7	%
Risk free interest rate			0.40	%			0.81	%

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Schedule of fair value of liability cash settled stock appreciation rights.

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Tabular disclosure of schedule of share based payment award stock appreciation rights valuation assumptions.

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Tabular disclosure of option exercise prices, by grouped ranges, including the upper and lower limits of the price range, the number of shares under option, weighted average exercise price and remaining contractual option terms.

+ References

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-Publisher FASB

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-Section 50

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



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Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year.

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Tabular disclosure of the significant assumptions used during the year to estimate the fair value of employee stock purchase plans, including, but not limited to: (a) expected term, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.

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