Quarterly report pursuant to Section 13 or 15(d)

REVISION OF PRIOR PERIOD FINANCIAL STATEMENTS (Consolidated Statements of Operations) (Details)

v2.4.0.8
REVISION OF PRIOR PERIOD FINANCIAL STATEMENTS (Consolidated Statements of Operations) (Details) (USD $)
In Thousands, except Per Share data, unless otherwise specified
 3 Months Ended 9 Months Ended 3 Months Ended 9 Months Ended 12 Months Ended 3 Months Ended 9 Months Ended 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2013
Dec. 31, 2012
Mar. 31, 2013
As Reported [Member]
Dec. 31, 2012
As Reported [Member]
Sep. 30, 2012
As Reported [Member]
Jun. 30, 2012
As Reported [Member]
Mar. 31, 2012
As Reported [Member]
Dec. 31, 2011
As Reported [Member]
Sep. 30, 2011
As Reported [Member]
Jun. 30, 2011
As Reported [Member]
Dec. 31, 2012
As Reported [Member]
Dec. 31, 2011
As Reported [Member]
Mar. 31, 2013
As Reported [Member]
Mar. 31, 2012
As Reported [Member]
Mar. 31, 2011
As Reported [Member]
Mar. 31, 2013
As Revised [Member]
Dec. 31, 2012
As Revised [Member]
Sep. 30, 2012
As Revised [Member]
Jun. 30, 2012
As Revised [Member]
Mar. 31, 2012
As Revised [Member]
Dec. 31, 2011
As Revised [Member]
Sep. 30, 2011
As Revised [Member]
Jun. 30, 2011
As Revised [Member]
Dec. 31, 2012
As Revised [Member]
Dec. 31, 2011
As Revised [Member]
Mar. 31, 2013
As Revised [Member]
Mar. 31, 2012
As Revised [Member]
Mar. 31, 2011
As Revised [Member]
Error Corrections And Prior Period Adjustments Revisions [Line Items]                                                            
Product revenue $ 98,348 $ 112,490 $ 269,024 $ 306,316 $ 92,648 $ 112,517 $ 100,067 $ 93,811 $ 109,865 $ 124,081 $ 115,126 $ 102,268 $ 306,395 $ 341,475 $ 399,043 $ 451,340 $ 456,903 $ 92,621 $ 112,490 $ 100,041 $ 93,785 $ 109,897 $ 124,113 $ 115,158 $ 102,300 $ 306,316 $ 341,571 $ 398,937 $ 451,468 $ 457,505
Royalty revenue 10,656 11,538 46,693 34,081         14,031 14,049 14,015 14,571   42,635 44,492 56,666 64,272         14,031 14,049 14,015 14,059   42,123 44,492 56,154 64,784
Total revenue 145,930 159,368 425,329 447,535 139,958 159,395 147,340 140,879 160,304 173,492 165,039 153,535 447,614 492,066 587,572 652,370 672,270 139,931 159,368 147,314 140,853 160,336 173,524 165,071 153,055 447,535 491,650 587,466 651,986 673,384
Cost of service revenue 19,706 19,360 56,053 59,896 19,721 19,360 20,232 20,334 22,727 22,537 21,129 22,066 59,926 65,732 79,647 88,459 94,311 19,708 19,360 20,232 20,304 22,722 22,548 21,132 22,064 59,896 65,744 79,604 88,466 94,311
Total cost of revenue 84,496 91,367 237,597 264,537 82,354 91,367 88,116 85,084 95,059 99,775 93,428 90,273 264,567 283,476 346,921 378,535 389,288 82,341 91,367 88,116 85,054 95,054 99,786 93,431 90,271 264,537 283,488 346,878 378,542 389,288
Gross margin 61,434 68,001 187,732 182,998 57,604 68,028 59,224 55,795 65,245 73,717 71,611 63,262 183,047 208,590 240,651 273,835 282,982 57,590 68,001 59,198 55,799 65,282 73,738 71,640 62,784 182,998 208,162 240,588 273,444 284,096
Sales and marketing 29,424 33,588 89,577 102,473 33,734 33,588 34,441 35,278 35,948 33,350 31,115 30,525 103,307 94,990 137,041 130,938 122,768 34,400 33,588 34,441 34,444 36,069 33,736 31,171 30,263 102,473 95,170 136,873 131,239 122,767
Total operating expenses 61,471 73,656 186,954 212,624 69,893 73,656 69,195 70,607 72,251 66,738 66,211 64,943 213,458 197,892 283,351 270,143 258,278 70,559 73,656 69,195 69,773 72,372 67,124 66,267 64,681 212,624 198,072 283,183 270,444 258,277
Income (loss) from operations (37) (5,655) 778 (29,626) (12,289) (5,628) (9,971) (14,812) (7,006) 6,979 6,900 (1,681) (30,411) 12,198 (42,700) 5,192 24,704 (12,969) (5,655) (9,997) (13,974) (7,090) 6,614 6,873 (1,897) (29,626) 11,590 (42,595) 4,500 25,819
Income (loss) before income taxes (2,107) (7,825) (5,750) (35,910) (14,563) (7,798) (11,898) (16,999) (11,587) 4,387 3,866 (4,588) (36,695) 3,665 (51,258) (7,922) 4,554 (15,243) (7,825) (11,924) (16,161) (11,671) 4,022 3,839 (4,804) (35,910) 3,057 (51,153) (8,614) 5,669
Net income (loss) $ (2,415) $ (8,173) $ (6,982) $ (37,127) $ (14,507) $ (8,146) $ (12,268) $ (17,498) $ (11,058) $ 3,914 $ 3,561 $ (5,226) $ (37,912) $ 2,249 $ (52,419) $ (8,809) $ 4,541 $ (15,187) $ (8,173) $ (12,294) $ (16,660) $ (11,142) $ 3,549 $ 3,534 $ (5,442) $ (37,127) $ 1,641 $ (52,314) $ (9,501) $ 5,656
Diluted net income (loss) per share         $ (0.06) $ (0.04) $ (0.05) $ (0.07) $ (0.05) $ 0.02 $ 0.01 $ (0.02) $ (0.16) $ 0.01 $ (0.22) $ (0.04) $ 0.02 $ (0.06) $ (0.04) $ (0.05) $ (0.07) $ (0.05) $ 0.02 $ 0.01 $ (0.02) $ (0.16) $ 0.01 $ (0.22) $ (0.04) $ 0.02