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Basis of Presentation (Tables)

9 Months Ended

Sep. 30, 2012

Basis of Presentation

Reconciliation of basic earnings per share ("EPS") to diluted EPS

		Three Months Ended						Nine Months Ended
		September 30,						September 30,
(in thousands, except per share amounts)		2012			2011			2012			2011
Net income available to common stockholders		$	12,976		$	19,380		$	36,036		$	45,951
Basic weighted average shares outstanding		48,346			48,253			48,322			49,247
Dilutive effect of potential common stock equivalents — stock options		44			35			63			49
Diluted weighted average shares outstanding		48,390			48,288			48,385			49,296
Earnings per common share:
Basic		$	0.27		$	0.40		$	0.75		$	0.93
Diluted		0.27			0.40			0.74			0.93
Potentially dilutive securities excluded from earnings per diluted share because their effect is anti-dilutive		1,709			1,752			1,714			1,746

Stock option and restricted stock unit activity of the entity

		Three Months Ended						Nine Months Ended
		September 30,						September 30,
(in thousands)		2012			2011			2012			2011
Stock-based compensation expense recognized in operating expenses		$	1,966		$	1,230		$	7,086		$	3,524
Tax benefit of stock-based compensation expense in provision for income taxes		691			449			2,462			1,267
Stock-based compensation expense, net of tax		$	1,275		$	781		$	4,624		$	2,257
Fair value of shares vested		$	2,043		$	1,287		$	7,048		$	3,405
Proceeds to the Company from the exercise of stock-based compensation		$	201		$	—		$	2,184		$	154
Tax effect from exercise of stock-based compensation, including shortfall tax benefits		$	(4	)	$	—		$	(60	)	$	(71	)

		At September 30,
		2012			2011
Stock-based compensation cost capitalized in inventory		$	354		$	166

Schedule of effective tax rates and income tax expense

		Three Months Ended						Nine Months Ended
(in thousands, except		September 30,						September 30,
percentage amounts)		2012			2011			2012			2011
Effective tax rate		41.4		%	34.2		%	42.6		%	37.1		%
Provision for income taxes		$	9,069		$	10,052		$	26,788		$	27,069

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- Definition

Tabular disclosure of the amount of total share-based compensation cost, including the amounts attributable to each share-based compensation plan and any related tax benefits.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (h)(1)

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- Definition

Tabular disclosure of the reconciliation of basic net earnings per share (or unit) to diluted earnings per share (or unit).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 260

-SubTopic 10

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

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Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 12

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