Carrying amount as of the balance sheet date of the unpaid sum of the known and estimated amounts payable to satisfy all currently due domestic and foreign income tax obligations.

+ References+ Details

The current portion of the aggregate tax effects as of the balance sheet date of all future tax deductions arising from temporary differences between tax basis and generally accepted accounting principles basis recognition of assets, liabilities, revenues and expenses, which can only be deducted for tax purposes when permitted under enacted tax laws; after deducting the allocated valuation allowance, if any, to reduce such amount to net realizable value. Deferred tax liabilities and assets are classified as current or noncurrent based on the classification of the related asset or liability for financial reporting. A deferred tax liability or asset that is not related to an asset or liability for financial reporting, including deferred tax assets related to carryforwards, are classified according to the expected reversal date of the temporary difference. An unrecognized tax benefit that is directly related to a position taken in a tax year that results in a net operating loss carryforward is presented as a reduction of the related deferred tax asset.

+ References+ Details

- Definition

The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.

+ References

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+ Details

Summary Of Significant Accounting Policies (Schedule Of Tax Correction) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended						156 Months Ended		96 Months Ended			12 Months Ended			12 Months Ended			12 Months Ended			12 Months Ended			12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2011 Increase/(Decrease) [Member]	Dec. 31, 2010 Increase/(Decrease) [Member]	Dec. 31, 2009 Increase/(Decrease) [Member]	Dec. 31, 2011 Increase/(Decrease) [Member]	Dec. 31, 2006 Cumulative 1999 Through 2006 [Member]	Dec. 31, 2006 Cumulative 1999 Through 2006 [Member] Increase/(Decrease) [Member]	Dec. 31, 2006 Cumulative 1999 Through 2006 [Member] Cumulative [Member]	Dec. 31, 2007 2007 [Member]	Dec. 31, 2007 2007 [Member] Increase/(Decrease) [Member]	Dec. 31, 2007 2007 [Member] Cumulative [Member]	Dec. 31, 2008 2008 [Member]	Dec. 31, 2008 2008 [Member] Increase/(Decrease) [Member]	Dec. 31, 2008 2008 [Member] Cumulative [Member]	Dec. 31, 2009 2009 [Member]	Dec. 31, 2009 2009 [Member] Increase/(Decrease) [Member]	Dec. 31, 2009 2009 [Member] Cumulative [Member]	Dec. 31, 2010 2010 [Member]	Dec. 31, 2010 2010 [Member] Increase/(Decrease) [Member]	Dec. 31, 2010 2010 [Member] Cumulative [Member]	Dec. 31, 2011 2011 [Member]	Dec. 31, 2011 2011 [Member] Increase/(Decrease) [Member]	Dec. 31, 2011 2011 [Member] Cumulative [Member]
R & D Deduction Error	$ 166,191	$ 151,896	$ 144,370				$ 4,493		$ 3,284												$ 989			$ 220
Interest & Penalties	5,200	4,300					4,697		1,792			599			538			341			479			948
Other Income/ Expense	(4,750)	(7,034)	707	(52)	(1,377)	(1,842)	(3,425)		(1,080)			(752)			1,574			(1,842)			(1,377)			52
Net income	50,950	95,722	68,176	(1,116)	(2,845)	(2,183)	(12,615)		(6,156)			(1,351)			1,036			(2,183)			(2,845)			(1,116)
Income taxes payable	14,482	13,091		14,482	13,091		14,482	6,677	6,677		8,274	1,597		7,277	(997)		9,851	2,574		13,091	3,240		14,482	1,391
Deferred income taxes, net	21,647	8,269		1,867	1,592		1,867		521	521		246	767		39	806		391	1,197		395	1,592		275	1,867
Retained Earnings	$ 333,057	$ 290,198		$ (12,615)	$ (11,499)		$ (12,615)			$ 6,156			$ 7,507			$ 6,471			$ 8,654			$ 11,499			$ 12,615