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Basis of Presentation (Tables)

9 Months Ended

Sep. 30, 2013

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)		2013			2012			2013			2012
Net income available to common stockholders		$	20,006		$	12,976		$	43,303		$	36,036
Basic weighted-average shares outstanding		48,377			48,346			48,482			48,322
Dilutive effect of potential common stock equivalents — stock options		174			44			121			63
Diluted weighted-average shares outstanding		48,551			48,390			48,603			48,385
Earnings per common share:
Basic		$	0.41		$	0.27		$	0.89		$	0.75
Diluted		0.41			0.27			0.89			0.74
Potentially dilutive securities excluded from earnings per diluted share because their effect is anti-dilutive		—			1,709			—			1,714

Stock option and restricted stock unit activity of the entity

		Three Months Ended						Nine Months Ended
		September 30,						September 30,
(in thousands)		2013			2012			2013			2012
Stock-based compensation expense recognized in operating expenses		$	2,959		$	1,966		$	8,644		$	7,086
Tax benefit of stock-based compensation expense in provision for income taxes		1,087			691			3,031			2,462
Stock-based compensation expense, net of tax		$	1,872		$	1,275		$	5,613		$	4,624
Fair value of shares vested		$	3,007		$	2,043		$	8,656		$	7,048
Proceeds to the Company from the exercise of stock-based compensation		$	4,557		$	201		$	5,333		$	2,184
Tax effect from exercise of stock-based compensation, including shortfall tax benefits		$	(337	)	$	(4	)	$	(2,187	)	$	(60	)

		At September 30,
		2013			2012
Stock-based compensation cost capitalized in inventory		$	426		$	354

Summary of financial instruments

		At September 30,						At December 31,
(in thousands)		2013			2012			2012
Financial instruments		$	87,381		$	85,237		$	76,130

Schedule of effective tax rates and income tax expense

		Three Months Ended						Nine Months Ended
		September 30,						September 30,
(in thousands, except percentage amounts)		2013			2012			2013			2012
Effective tax rate		35.2		%	41.1		%	37.8		%	42.6		%
Provision for income taxes		$	10,870		$	9,069		$	26,304		$	26,788

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- Definition

Tabular disclosure of assets, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class that are measured at fair value on a recurring and/or nonrecurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3).

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=25499696&loc=d3e19190-110258



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-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (a),(b)

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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

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- Definition

Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 260

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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

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