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Stock Compensation | 6 Months Ended
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Apr. 30, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Stock Compensation | Stock Compensation The compensation cost recognized in the unaudited condensed consolidated statements of operations for the Company’s stock compensation arrangements was as follows:
| Three Months Ended April 30, |  | Six Months Ended April 30,
| 2017 |  | 2016 |  | 2017 |  | 2016
| (in thousands)
Cost of products | $ | 2,813 |  |  | $ | 2,608 |  |  | $ | 5,812 |  |  | $ | 5,204 |
Cost of maintenance and service | 947 |  |  | 563 |  |  | 1,808 |  |  | 1,142 |
Research and development expense | 12,568 |  |  | 11,838 |  |  | 25,452 |  |  | 23,423 |
Sales and marketing expense | 4,807 |  |  | 4,741 |  |  | 9,936 |  |  | 9,442 |
General and administrative expense | 4,427 |  |  | 3,709 |  |  | 8,388 |  |  | 7,261 |
Stock compensation expense before taxes | 25,562 |  |  | 23,459 |  |  | 51,396 |  |  | 46,472 |
Income tax benefit | (7,065 | ) |  | (6,135 | ) |  | (14,206 | ) |  | (12,152 | )
Stock compensation expense after taxes | $ | 18,497 |  |  | $ | 17,324 |  |  | $ | 37,190 |  |  | $ | 34,320 |
In addition to the tax benefit disclosed above, the Company recorded net excess tax benefits from stock-based compensation in the provision for income taxes of $8.3 million and $11.3 million, respectively, for the three and six months ended April 30, 2017. As of April 30, 2017, there was $173.0 million of unamortized share-based compensation expense relating to options and restricted stock units and awards, which is expected to be amortized over a weighted-average period of approximately 2.4 years. The intrinsic values of equity awards exercised during the periods are as follows:
| Three Months Ended April 30, |  | Six Months Ended April 30,
| 2017 |  | 2016 |  | 2017 |  | 2016
| (in thousands)
Intrinsic value of awards exercised | $ | 22,369 |  |  | $ | 7,224 |  |  | $ | 28,656 |  |  | $ | 8,498 |
In March 2016, the Financial Accounting Standards Board (FASB) issued ASU 2016-09, "Compensation-Stock Compensation (Topic 718), Improvements to Employee Share-Based Payment Accounting." The Company elected to early adopt ASU 2016-09 in the first quarter of fiscal 2017. As required by ASU 2016-09, excess tax benefits recognized on stock-based compensation expense are classified as an operating activity in the consolidated statements of cash flows and the Company has elected to apply this provision on a prospective basis. The Company also elected to account for forfeitures as they occur and recorded a one-time adoption expense of $0.4 million to retained earnings. See Note 15. Taxes for additional information on tax impacts.

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- Definition The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 40 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=65895303&loc=d3e17540-113929 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 50 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=68057994&loc=d3e25284-112666 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 14) -URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5444-113901 + Details
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