Nature Of Business And Summary Of Significant Accounting Policies (Tables)

12 Months Ended

Nov. 30, 2012

Allowances Against Accounts Receivable

A summary of activity in the allowances for doubtful accounts is as follows (in thousands):

	Fiscal Year Ended
	November 30, 2012			November 30, 2011			November 30, 2010
Beginning balance	$	6,683		$	4,980		$	7,650
Charge (benefit) to costs and expenses	1,140			1,963			(1,400		)
Write-offs and other	(5,094		)	(117		)	(981		)
Translation adjustments	295			(143		)	(289		)
Ending balance	$	3,024		$	6,683		$	4,980

Accumulated Other Comprehensive Loss

Accumulated other comprehensive loss is comprised of the following components (in thousands):

	Fiscal Year Ended
	November 30, 2012			November 30, 2011			November 30, 2010
Accumulated unrealized losses on investments	$	(2,581	)	$	(4,108	)	$	(4,462	)
Cumulative translation adjustment	(8,183		)	(7,545		)	(3,277		)
Total accumulated comprehensive loss, net of tax	$	(10,764	)	$	(11,653	)	$	(7,739	)

Balance Sheet [Member]

Schedule of Error Corrections and Prior Period Adjustments

The effect of the corrections to the consolidated balance sheet as of November 30, 2011, is as follows (in thousands):

	As Previously Reported			Impact of Purchase Accounting Measurement Period Adjustments		Adjustment			As Corrected
Assets:
Other current assets	$	21,143		—		$	967		$	22,110
Deferred tax assets	14,291			—		(833		)	13,458
Total current assets	407,777			—		134			407,911
Goodwill	263,239			(5,415	)	(1,613		)	256,211
Total assets	865,310			432		(1,479		)	864,263
Liabilities and shareholders’ equity:
Income taxes payable	11,412			—		(5,364		)	6,048
Total current liabilities	231,508			—		(5,364		)	226,144
Other noncurrent liabilities	3,350			432		1,075			4,857
Retained earnings	326,135			—		1,407			327,542
Accumulated other comprehensive loss	(13,056		)	—		1,403			(11,653		)
Total shareholders’ equity	622,300			—		2,810			625,110
Total liabilities and shareholders’ equity	865,310			432		(1,479		)	864,263

Income Statement [Member]

Schedule of Error Corrections and Prior Period Adjustments

The effect of the corrections to the consolidated statement of income for the year ended November 30, 2011, is as follows (in thousands, except per share data; per share data may not foot due to rounding):

	As Previously Reported		Impact of Discontinued Operations		Adjustment			As Corrected
Provision for income taxes	$	28,943	$	6,305	$	(868	)	$	34,380
Income from continuing operations	—		65,474		868			66,342
Net income	58,761		—		868			59,629
Earnings per share:
Basic:
Continuing operations	—		1.00		0.01			1.01
Net income per share	0.89		—		0.01			0.91
Diluted:
Continuing operations	—		0.97		0.01			0.98
Net income per share	0.87		—		0.01			0.88

The effect of the corrections to the consolidated statement of income for the year ended November 30, 2010, is as follows (in thousands, except per share data; per share data may not foot due to rounding):

	As Previously Reported		Impact of Discontinued Operations			Adjustment			As Corrected
Provision for income taxes	$	22,857	$	9,565		$	244		$	32,666
Income from continuing operations	—		62,812			(244		)	62,568
Loss from discontinued operations	—		(14,241		)	(229		)	(14,470		)
Net income	48,571		—			(473		)	48,098
Earnings per share:
Basic:
Continuing operations	—		0.98			—			0.98
Discontinued operations	—		(0.22		)	—			(0.23		)
Net income per share	0.76		—			(0.01		)	0.75
Diluted:
Continuing operations	—		0.95			—			0.94
Discontinued operations	—		(0.22		)	—			(0.22		)
Net income per share	0.73		—			(0.01		)	0.73

Shareholders Equity Statement [Member]

Schedule of Error Corrections and Prior Period Adjustments

The effect of the corrections to the consolidated statements of shareholders' equity for the years ended November 30, 2011 and 2010, is as follows (in thousands):

	Fiscal Year Ended 2011								Fiscal Year Ended 2010
	As Previously Reported			Adjustment		As Corrected			As Previously Reported			Adjustment			As Corrected
Total stockholders' equity, beginning of period	$	688,331		$	1,942	$	690,273		$	555,452		$	2,415		$	557,867
Retained earnings:
Retained earnings, beginning of year	349,870			539		350,409			311,576			1,012			312,588
Net income	58,761			868		59,629			48,571			(473		)	48,098
Retained earnings, end of year	326,135			1,407		327,542			349,870			539			350,409
Accumulated other comprehensive loss:
Accumulated other comprehensive loss, beginning of year	(9,142		)	1,403		(7,739		)	(3,389		)	1,403			(1,986		)
Accumulated other comprehensive loss, end of year	(13,056		)	1,403		(11,653		)	(9,142		)	1,403			(7,739		)
Total stockholders' equity, end of period	622,300			2,810		625,110			688,331			1,942			690,273

Cash Flow Statement [Member]

Schedule of Error Corrections and Prior Period Adjustments

The effect of the corrections to the consolidated statements of cash flows for the years ended November 30, 2011 and 2010, is as follows (in thousands):

	Fiscal Year Ended 2011							Fiscal Year Ended 2010
	As Previously Reported		Adjustment			As Corrected		As Previously Reported			Adjustment			As Corrected
Cash flows from operating activities:
Net income	$	58,761	$	868		$	59,629	$	48,571		$	(473	)	$	48,098
Adjustments to reconcile net income to net cash provided by operating activities:
Deferred income taxes	1,869		599			2,468		4,004			(242		)	3,762
Changes in operating assets and liabilities:
Income taxes payable and uncertain tax positions	11,107		(1,467		)	9,640		(7,347		)	715			(6,632		)