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Summary of Quarterly Results (Detail) (USD $)
In Thousands, except Share data, unless otherwise specified
 3 Months Ended 12 Months Ended
Jun. 30, 2012
Mar. 31, 2012
Dec. 31, 2011
Sep. 30, 2011
Jun. 30, 2011
Jul. 02, 2011
Apr. 02, 2011
Dec. 31, 2010
Sep. 30, 2010
Jun. 30, 2010
Mar. 31, 2012
Apr. 02, 2011
Apr. 03, 2010
Quarterly Financial Information [Line Items]                          
Total Revenue $ 414,865 $ 379,990 $ 373,606 $ 305,532 $ 243,126 $ 243,126 $ 240,003 $ 222,451 $ 189,369 $ 151,516 $ 1,302,254 $ 803,339 $ 508,099
Gross profit 251,000 219,122 221,905 175,100 136,969 136,969 134,121 126,763 102,827 82,354 753,096 446,065 266,734
Income from operations 111,943 78,841 64,587 59,278 44,976 44,976 42,634 44,930 32,122 17,180 247,682 136,866 56,174
Net income $ 68,645 $ 43,612 $ 39,031 $ 40,606 $ 24,115 $ 24,115 $ 17,373 $ 27,790 $ 15,591 $ 11,752 $ 147,364 $ 72,506 $ 39,248
Weighted average ordinary shares outstanding:                          
Basic 192,790,454 191,184,171 154,738,356 146,555,601 140,554,377 140,554,377 140,554,377 140,554,377 140,554,377 140,554,377 158,258,126 140,554,377 140,554,377
Diluted 199,391,127 196,855,404 193,583,954 187,580,161 179,177,268 179,177,268 179,177,268 179,177,268 179,177,268 179,177,268 189,299,197 179,177,268 179,177,268