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Summary of Significant Accounting Policies - Revised Consolidated Statements of Operations (Detail) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2016 | Sep. 30, 2016 | Jun. 30, 2016 | Mar. 31, 2016 | Dec. 31, 2015 | Sep. 30, 2015 | Jun. 30, 2015 | Mar. 31, 2015 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Revenue |  |  |  |  |  |  |  |  |  |  |
Product and license |  |  |  |  |  |  |  |  | $ 156,057 | $ 218,908 | $ 182,556
Service and Other |  |  |  |  |  |  |  |  | 36,247 | 22,535 | 18,981
Total Revenue | $ 47,597 | $ 43,648 | $ 54,293 | $ 46,767 | $ 50,889 | $ 60,027 | $ 65,393 | $ 65,135 | 192,304 | 241,443 | 201,537
Cost of goods sold |  |  |  |  |  |  |  |  |  |  |
Product and License |  |  |  |  |  |  |  |  | 53,191 | 95,028 | 72,802
Service and Other |  |  |  |  |  |  |  |  | 8,456 | 2,875 | 3,093
Total Cost of Goods Sold |  |  |  |  |  |  |  |  | 61,647 | 97,903 | 75,895
Gross profit | 31,954 | 30,050 | 36,551 | 32,104 | 33,000 | 35,695 | 37,739 | 37,106 | 130,657 | 143,540 | 125,642
Operating costs |  |  |  |  |  |  |  |  |  |  |
Sales and marketing |  |  |  |  |  |  |  |  | 57,347 | 38,199 | 42,189
Research and development |  |  |  |  |  |  |  |  | 23,214 | 17,457 | 18,546
General and administrative |  |  |  |  |  |  |  |  | 31,648 | 32,489 | 22,287
Amortization of purchased intangibles |  |  |  |  |  |  |  |  | 8,849 | 4,942 | 4,532
Total operating costs | 29,765 | 29,138 | 33,165 | 28,990 | 27,832 | 22,240 | 21,986 | 21,030 | 121,058 | 93,087 | 87,554
Operating income | $ 2,186 | $ 912 | $ 3,386 | $ 3,115 | $ 5,168 | $ 13,455 | $ 15,753 | $ 16,077 | $ 9,599 | 50,453 | 38,088
As Previously Reported [Member] |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  |  |  |
Total Revenue |  |  |  |  |  |  |  |  |  | 241,443 | 201,537
Cost of goods sold |  |  |  |  |  |  |  |  |  |  |
Total Cost of Goods Sold |  |  |  |  |  |  |  |  |  | 95,351 | 73,771
Gross profit |  |  |  |  |  |  |  |  |  | 146,092 | 127,766
Operating costs |  |  |  |  |  |  |  |  |  |  |
Sales and marketing |  |  |  |  |  |  |  |  |  | 39,670 | 43,362
Research and development |  |  |  |  |  |  |  |  |  | 18,538 | 19,497
General and administrative |  |  |  |  |  |  |  |  |  | 32,489 | 22,287
Amortization of purchased intangibles |  |  |  |  |  |  |  |  |  | 4,942 | 4,532
Total operating costs |  |  |  |  |  |  |  |  |  | 95,639 | 89,678
Operating income |  |  |  |  |  |  |  |  |  | 50,453 | 38,088
Adjustment [Member] |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  |  |  |
Product and license |  |  |  |  |  |  |  |  |  | 218,908 | 182,556
Service and Other |  |  |  |  |  |  |  |  |  | 22,535 | 18,981
Cost of goods sold |  |  |  |  |  |  |  |  |  |  |
Product and License |  |  |  |  |  |  |  |  |  | 95,028 | 72,802
Service and Other |  |  |  |  |  |  |  |  |  | 2,875 | 3,093
Total Cost of Goods Sold |  |  |  |  |  |  |  |  |  | 2,552 | 2,124
Gross profit |  |  |  |  |  |  |  |  |  | (2,552) | (2,124)
Operating costs |  |  |  |  |  |  |  |  |  |  |
Sales and marketing |  |  |  |  |  |  |  |  |  | (1,471) | (1,173)
Research and development |  |  |  |  |  |  |  |  |  | (1,081) | (951)
General and administrative |  |  |  |  |  |  |  |  |  | 0 |
Amortization of purchased intangibles |  |  |  |  |  |  |  |  |  | 0 |
Total operating costs |  |  |  |  |  |  |  |  |  | (2,552) | $ (2,124)
Operating income |  |  |  |  |  |  |  |  |  | $ 0 |

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