Income Taxes - Additional Information (Detail)
$ in Thousands, ₪ in Millions |
1 Months Ended |
3 Months Ended |
6 Months Ended |
12 Months Ended |
|
|
Jan. 31, 2016
USD ($)
|
Jan. 31, 2016
ILS (₪)
|
Oct. 31, 2014
USD ($)
|
Oct. 31, 2014
ILS (₪)
|
Apr. 30, 2016
USD ($)
|
Apr. 30, 2015
USD ($)
|
Apr. 30, 2016
USD ($)
|
Apr. 30, 2015
USD ($)
|
Oct. 31, 2016
USD ($)
|
Apr. 30, 2016
ILS (₪)
|
| Provision for (benefit from) income taxes |
|
|
|
|
$ 3,087
|
$ 1,449
|
$ 5,086
|
$ 2,844
|
|
|
| Internal Revenue Service (IRS) [Member] |
|
|
|
|
|
|
|
|
|
|
| Income Tax Examination, Increase (Decrease) in Liability from Prior Year |
|
|
|
|
154,300
|
|
154,300
|
|
|
|
| Foreign Tax Authority [Member] |
|
|
|
|
|
|
|
|
|
|
| Amount of transaction under examination |
|
|
$ 363,500
|
₪ 1,360
|
|
|
|
|
|
|
| impact to the past tax years [Member] | Internal Revenue Service (IRS) [Member] |
|
|
|
|
|
|
|
|
|
|
| Loss Contingency, Estimate of Possible Loss |
|
|
|
|
25,000
|
|
25,000
|
|
|
|
| impact to the future tax years [Member] | Internal Revenue Service (IRS) [Member] |
|
|
|
|
|
|
|
|
|
|
| Loss Contingency, Estimate of Possible Loss |
|
|
|
|
29,000
|
|
29,000
|
|
|
|
| Other Liabilities [Member] |
|
|
|
|
|
|
|
|
|
|
| Unrecognized Tax Benefits |
|
|
|
|
110,800
|
|
110,800
|
|
|
|
| Scenario, Forecast [Member] | intercompany loan [Member] | ISRAEL |
|
|
|
|
|
|
|
|
|
|
| Repayments of Debt |
|
|
|
|
|
|
|
|
$ 69,000
|
|
| Tax Year 2009 [Member] | Foreign Tax Authority [Member] |
|
|
|
|
|
|
|
|
|
|
| Amount of transaction under examination |
$ 587,600
|
₪ 2,200
|
|
|
|
|
|
|
|
|
| Loss Contingency, Estimate of Possible Loss |
|
|
|
|
333,100
|
|
333,100
|
|
|
₪ 1,250
|
| Tax Year 2008 [Member] | Foreign Tax Authority [Member] |
|
|
|
|
|
|
|
|
|
|
| Amount of transaction under examination |
$ 594,400
|
₪ 2,230
|
|
|
|
|
|
|
|
|
| Loss Contingency, Estimate of Possible Loss |
|
|
|
|
$ 391,700
|
|
$ 391,700
|
|
|
₪ 1,470
|