Basis Of Presentation And Significant Accounting Policies (Schedule of Adjustments to Consolidated Statements of Operations) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	7 Months Ended		12 Months Ended			3 Months Ended	9 Months Ended	3 Months Ended	9 Months Ended	3 Months Ended	9 Months Ended
	Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2011	May 31, 2010	May 31, 2009	Sep. 30, 2011 As Adjusted	Sep. 30, 2011 As Adjusted	Sep. 30, 2011 As Reported	Sep. 30, 2011 As Reported	Sep. 30, 2011 Adjustments	Sep. 30, 2011 Adjustments
Revenue	$ 613,309	$ 383,479	$ 1,444,077	$ 704,502	$ 548,439	$ 363,736	$ 1,055,875	$ 368,763	$ 1,060,902	$ 5,027	$ 5,027
Cost of Revenue			28,000			201,763	566,257	201,763	566,257	0	0
Gross Profit	298,169	209,867	665,565	388,844	292,151	161,973	489,618	167,000	494,645	5,027	5,027
Selling, general and administrative expenses	232,788	126,569	387,571	224,995	199,902	92,152	297,832	94,120	299,800	1,968	1,968
Research and development	43,261	27,238	104,106	49,206	39,431	26,032	72,800	26,032	72,800	0	0
Amortization of intangible assets	16,235	5,914	37,344	10,060	6,884	9,422	28,071	9,422	28,071	0	0
Income from operations	5,885	50,146	136,544	104,583	45,934	34,367	90,915	37,426	93,974	3,059	3,059
Interest expense	(9,687)	(1,302)	(20,750)	(1,993)	(2,162)	(3,746)	(16,723)	(3,746)	(16,723)	0	0
Interest income and other, net	843	240	1,685	946	626	425	1,184	425	1,184	0	0
Income before income taxes	(2,959)	49,084	117,479	103,536	44,398	31,046	75,376	34,105	78,435	3,059	3,059
Provision for income taxes	(2,606)	(18,596)	(43,870)	(40,666)	(18,376)	(11,909)	(27,750)	(13,121)	(28,962)	(1,212)	(1,212)
Net income	$ (5,565)	$ 30,488	$ 73,609	$ 62,870	$ 26,022	$ 19,137	$ 47,626	$ 20,984	$ 49,473	$ 1,847	$ 1,847
Earnings per share - basic and diluted						$ 0.10	$ 0.25	$ 0.11	$ 0.26	$ 0.01	$ 0.01