Income Taxes (Summary Of Taxes Computed At Statutory Federal Income Tax Rate Reconciled To Provision For Income Taxes) (Details)	7 Months Ended	12 Months Ended
Dec. 31, 2010	Dec. 31, 2011	May 31, 2010	May 31, 2009
Income Taxes [Abstract]
United States federal tax at statutory rate	35.00%	35.00%	35.00%	35.00%
Non-deductible acquisition and reorganization expenses	(59.50%)	0.00%	2.30%	0.00%
Research credits	33.10%	(2.70%)	(0.10%)	0.00%
Change in unrecognized tax benefits	(28.90%)	1.80%	0.00%	0.00%
State income taxes, net of federal benefit	(27.00%)	4.60%	5.10%	5.90%
Compensation	(26.20%)	1.40%	0.00%	0.00%
Meals and entertainment	(20.90%)	0.90%	0.90%	1.00%
Impact of foreign operations	16.70%	(1.60%)	0.00%	0.00%
Federal, state and local rate changes	(12.80%)	(3.20%)	0.00%	0.00%
Domestic manufacturing deduction	7.20%	0.00%	(0.50%)	(0.10%)
Non-deductible items	(4.40%)	0.20%	0.00%	0.00%
Valuation allowance	(0.40%)	0.00%	0.00%	0.00%
Other	0.00%	0.90%	(3.40%)	(0.40%)
Provision for income taxes	(88.10%)	37.30%	39.30%	41.40%

Effective Income Tax Rate Reconciliation Change In Unrecognized Tax Benefits

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Effective Income Tax Rate Reconciliation Nondeductible Expense Acquisition Costs

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- Definition

A ratio calculated by dividing the reported amount of income tax expense attributable to continuing operations for the period by GAAP-basis pretax income from continuing operations.

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The domestic federal statutory tax rate applicable under enacted tax laws to the Company's pretax income from continuing operations for the period. The "statutory" tax rate is the regular tax rate if there are alternative tax systems.

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The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate attributable to changes in the valuation allowance for deferred tax assets.

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The portion of the difference between total income tax expense or benefit as reported in the Income Statement and the expected income tax expense or benefit that is attributable to changes in the income tax laws or rates.

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The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate attributable to the deduction for qualified production activities received under enacted tax laws.

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The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate that can be explained by the difference between statutory income tax rates in foreign jurisdictions and the domestic federal statutory income tax rate recorded during the period.

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The sum of the differences between the effective income tax rate and domestic federal statutory income tax rate attributable to all nondeductible expenses under enacted tax laws.

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The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate attributable to nondeductible meals and entertainment expenses under enacted tax laws.

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The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate attributable to differences in the deductibility or nondeductibility of incentive stock options and other equity-based compensation costs in accordance with generally accepted accounting principles and enacted tax laws.

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The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate attributable to all other items not otherwise listed in the existing taxonomy.

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The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate that can be explained by the state and local income tax expense or benefit, net of the federal tax benefit (expense) thereon, recorded during the period.

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The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate that can be explained by research tax credits generated or utilized under enacted tax laws during the period.

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