Organization and Summary of Significant Accounting Policies (Tables) (Impact of Adjustments To Financial Statements [Member])

3 Months Ended

6 Months Ended

Jun. 30, 2010

Jun. 30, 2010

Impact of Adjustments To Financial Statements [Member]

Consolidated Statement of Income

	For the Three Months Ended June 30, 2010
	Previously Reported		Revised		Effect of Change
Cost of sales	$	180,127	$	178,936	$	(1,191	)
Research and development		3,191		3,091		(100	)
Selling and administrative expense		32,308		32,030		(278	)
Income before provision for income taxes		48,719		50,288		1,569
Provision for income taxes		9,397		9,541		144
Net income		39,322		40,747		1,425
Earnings per share of common stock-basic		0.33		0.34		0.01
Earnings per share of common stock-diluted		0.32		0.34		0.02

	For the Six Months Ended June 30, 2010
	Previously Reported		Revised		Effect of Change
Cost of sales	$	327,688	$	325,306	$	(2,382	)
Research and development		5,726		5,526		(200	)
Selling and administrative expense		54,819		54,263		(556	)
Income before provision for income taxes		93,916		97,054		3,138
Provision for income taxes		21,066		21,354		288
Net income		72,850		75,700		2,850
Earnings per share of common stock-basic		0.61		0.63		0.02
Earnings per share of common stock-diluted		0.60		0.63		0.03

Consolidated Statement of Cash Flows

	For the Six Months Ended June 30, 2010
	Previously Reported			Revised			Effect of Change
Net income	$	72,850		$	75,700		$	2,850
Deferred income tax provision		(8,242	)		(8,239	)		3
Postretirement and pension plan		4,689			1,836			(2,853	)