XML 39 R25.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Summary of Unaudited Consolidated Statement of Income (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Nov. 30, 2018 | Feb. 28, 2018 | Nov. 30, 2017 | Nov. 30, 2018 | Nov. 30, 2017 | Feb. 28, 2018 | May 31, 2018 | May 31, 2017
Revenues |  |  |  |  |  |  |  |
Total revenues | $ 107,098 | $ 94,903 | $ 100,698 | $ 206,724 | $ 194,907 | $ 289,811 | $ 397,930 | $ 358,277
Cost of revenues |  |  |  |  |  |  |  |
Total Cost of Revenues | 57,065 | 50,302 | 52,449 | 109,962 | 101,734 | 152,037 | 211,658 | 189,353
Gross margin | 50,033 | 44,601 | 48,249 | 96,762 | 93,173 | 137,774 | 186,272 | 168,924
Operating Expenses |  |  |  |  |  |  |  |
Sales and marketing | 18,499 | 16,572 | 16,793 | 35,732 | 32,869 | 49,442 | 66,929 | 59,380
Total operating expenses | 31,787 | 28,688 | 30,251 | 62,037 | 58,751 | 87,439 | 116,078 | 103,979
Operating income | 18,246 | 15,913 | 17,998 | 34,725 | 34,422 | 50,335 | 70,194 | 64,945
Product Revenues |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |
Total revenues | 89,562 | 77,184 | 84,471 | 172,522 | 164,016 | 241,200 | 331,288 | 303,122
Cost of revenues |  |  |  |  |  |  |  |
Total Cost of Revenues | 47,305 | 40,283 | 43,252 | 90,255 | 84,236 | 124,520 | 173,725 | 156,295
Service Revenues |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |
Total revenues | 17,536 | 17,719 | 16,227 | 34,202 | 30,891 | 48,611 | 66,642 | 55,155
Cost of revenues |  |  |  |  |  |  |  |
Total Cost of Revenues | $ 9,760 | 10,019 | 9,197 | $ 19,707 | 17,498 | 27,517 | 37,933 | 33,058
Accounting Standards Update 2014-09 | Calculated under Revenue Guidance in Effect before Topic 606 |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |
Total revenues |  | 95,892 | 101,817 |  | 197,073 | 292,965 | 402,252 | 361,594
Cost of revenues |  |  |  |  |  |  |  |
Total Cost of Revenues |  | 50,371 | 52,546 |  | 101,931 | 152,302 | 212,000 | 189,626
Gross margin |  | 45,521 | 49,271 |  | 95,142 | 140,663 | 190,252 | 171,968
Operating Expenses |  |  |  |  |  |  |  |
Sales and marketing |  | 17,492 | 17,815 |  | 34,838 | 52,331 | 70,909 | 62,424
Total operating expenses |  | 29,608 | 31,273 |  | 60,720 | 90,328 | 120,058 | 107,023
Operating income |  | 15,913 | 17,998 |  | 34,422 | 50,335 | 70,194 | 64,945
Accounting Standards Update 2014-09 | Adjustments |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |
Total revenues |  | (989) | (1,119) |  | (2,166) | (3,154) | (4,322) | (3,317)
Cost of revenues |  |  |  |  |  |  |  |
Total Cost of Revenues |  | (69) | (97) |  | (197) | (265) | (342) | (273)
Gross margin |  | (920) | (1,022) |  | (1,969) | (2,889) | (3,980) | (3,044)
Operating Expenses |  |  |  |  |  |  |  |
Sales and marketing |  | (920) | (1,022) |  | (1,969) | (2,889) | (3,980) | (3,044)
Total operating expenses |  | (920) | (1,022) |  | (1,969) | (2,889) | (3,980) | (3,044)
Accounting Standards Update 2014-09 | Product Revenues | Calculated under Revenue Guidance in Effect before Topic 606 |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |
Total revenues |  | 78,142 | 85,590 |  | 166,157 | 244,298 | 335,554 | 306,512
Cost of revenues |  |  |  |  |  |  |  |
Total Cost of Revenues |  | 40,352 | 43,349 |  | 84,433 | 124,785 | 174,067 | 156,568
Accounting Standards Update 2014-09 | Product Revenues | Adjustments |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |
Total revenues |  | (958) | (1,119) |  | (2,141) | (3,098) | (4,266) | (3,390)
Cost of revenues |  |  |  |  |  |  |  |
Total Cost of Revenues |  | (69) | (97) |  | (197) | (265) | (342) | (273)
Accounting Standards Update 2014-09 | Service Revenues | Calculated under Revenue Guidance in Effect before Topic 606 |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |
Total revenues |  | 17,750 | 16,227 |  | 30,916 | 48,667 | 66,698 | 55,082
Cost of revenues |  |  |  |  |  |  |  |
Total Cost of Revenues |  | 10,019 | $ 9,197 |  | 17,498 | 27,517 | 37,933 | 33,058
Accounting Standards Update 2014-09 | Service Revenues | Adjustments |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |
Total revenues |  | $ (31) |  |  | $ (25) | $ (56) | $ (56) | $ 73

X
- Definition The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.2(a),(d)) -URI http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227 + Details
Name: | us-gaap_CostOfGoodsAndServicesSold
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_CostOfRevenueAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1,2) -URI http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227 + Details
Name: | us-gaap_GrossProfit
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense. + References No definition available. + Details
Name: | us-gaap_OperatingExpenses
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_OperatingExpensesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The net result for the period of deducting operating expenses from operating revenues. + References No definition available. + Details
Name: | us-gaap_OperatingIncomeLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130543-203045 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130539-203045 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130545-203045 + Details
Name: | us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_RevenuesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The aggregate total amount of expenses directly related to the marketing or selling of products or services. + References No definition available. + Details
Name: | us-gaap_SellingAndMarketingExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | srt_ProductOrServiceAxis=us-gaap_ProductMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=us-gaap_ServiceMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AdjustmentsForNewAccountingPronouncementsAxis=us-gaap_AccountingStandardsUpdate201409Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InitialApplicationPeriodCumulativeEffectTransitionAxis=us-gaap_CalculatedUnderRevenueGuidanceInEffectBeforeTopic606Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InitialApplicationPeriodCumulativeEffectTransitionAxis=us-gaap_DifferenceBetweenRevenueGuidanceInEffectBeforeAndAfterTopic606Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |