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Stock Incentive Plans - Summary of Share Based Payment Arrangement Option Exercise Price Range (Detail) - Planet Labs Inc [Member] - $ / shares | 12 Months Ended |  |  |
--- | --- | --- | --- | ---
Jan. 31, 2021 | Oct. 31, 2021 | Jan. 31, 2020 | Jan. 31, 2019
Share-based Payment Arrangement, Option [Member] |  |  |  |
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items] |  |  |  |
Options Outstanding | 25,620,937 | 29,061,900 | 20,093,732 | 15,684,075
Options Exercisable | 15,849,747 | 17,187,395 |  |
0.00 |  |  |  |
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items] |  |  |  |
Exercise Price | $ 0.00002 |  |  |
Options Outstanding, Number of Options | 48,995 |  |  |
Options Outstanding, Weighted Average Remaining Contractual Life (in Years) | 7 months 20 days |  |  |
Options Exercisable, Number of Options | 48,995 |  |  |
Options Exercisable, Weighted Average Remaining Contractual Life (in Years) | 7 months 20 days |  |  |
0.014 |  |  |  |
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items] |  |  |  |
Exercise Price, Shares | 0.014 |  |  |
Options Outstanding, Number of Options | 187,500 |  |  |
Options Outstanding, Weighted Average Remaining Contractual Life (in Years) | 9 months 14 days |  |  |
Options Exercisable, Number of Options | 187,500 |  |  |
Options Exercisable, Weighted Average Remaining Contractual Life (in Years) | 9 months 14 days |  |  |
0.07 |  |  |  |
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items] |  |  |  |
Exercise Price, Shares | 0.070 |  |  |
Options Outstanding, Number of Options | 25,000 |  |  |
Options Outstanding, Weighted Average Remaining Contractual Life (in Years) | 1 year 5 months 15 days |  |  |
Options Exercisable, Number of Options | 25,000 |  |  |
Options Exercisable, Weighted Average Remaining Contractual Life (in Years) | 1 year 5 months 15 days |  |  |
0.106 |  |  |  |
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items] |  |  |  |
Exercise Price, Shares | 0.106 |  |  |
Options Outstanding, Number of Options | 545,050 |  |  |
Options Outstanding, Weighted Average Remaining Contractual Life (in Years) | 2 years 6 months 29 days |  |  |
Options Exercisable, Number of Options | 545,050 |  |  |
Options Exercisable, Weighted Average Remaining Contractual Life (in Years) | 2 years 6 months 29 days |  |  |
0.856 |  |  |  |
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items] |  |  |  |
Exercise Price, Shares | 0.856 |  |  |
Options Outstanding, Number of Options | 2,218,795 |  |  |
Options Outstanding, Weighted Average Remaining Contractual Life (in Years) | 3 years 6 months 25 days |  |  |
Options Exercisable, Number of Options | 2,218,795 |  |  |
Options Exercisable, Weighted Average Remaining Contractual Life (in Years) | 3 years 6 months 25 days |  |  |
2.768 |  |  |  |
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items] |  |  |  |
Exercise Price, Shares | 2.768 |  |  |
Options Outstanding, Number of Options | 1,426,495 |  |  |
Options Outstanding, Weighted Average Remaining Contractual Life (in Years) | 4 years 3 months |  |  |
Options Exercisable, Number of Options | 1,426,495 |  |  |
Options Exercisable, Weighted Average Remaining Contractual Life (in Years) | 4 years 3 months |  |  |
3.102 |  |  |  |
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items] |  |  |  |
Exercise Price, Shares | 3.102 |  |  |
Options Outstanding, Number of Options | 1,445,855 |  |  |
Options Outstanding, Weighted Average Remaining Contractual Life (in Years) | 4 years 8 months 23 days |  |  |
Options Exercisable, Number of Options | 1,445,855 |  |  |
Options Exercisable, Weighted Average Remaining Contractual Life (in Years) | 4 years 8 months 23 days |  |  |
3.56 |  |  |  |
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items] |  |  |  |
Exercise Price, Shares | 3.560 |  |  |
Options Outstanding, Number of Options | 1,629,030 |  |  |
Options Outstanding, Weighted Average Remaining Contractual Life (in Years) | 5 years 2 months 15 days |  |  |
Options Exercisable, Number of Options | 1,629,030 |  |  |
Options Exercisable, Weighted Average Remaining Contractual Life (in Years) | 5 years 2 months 15 days |  |  |
5.234 |  |  |  |
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items] |  |  |  |
Exercise Price, Shares | 5.234 |  |  |
Options Outstanding, Number of Options | 203,765 |  |  |
Options Outstanding, Weighted Average Remaining Contractual Life (in Years) | 6 years 3 days |  |  |
Options Exercisable, Number of Options | 203,765 |  |  |
Options Exercisable, Weighted Average Remaining Contractual Life (in Years) | 6 years 3 days |  |  |
5.65 |  |  |  |
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items] |  |  |  |
Exercise Price, Shares | 5.650 |  |  |
Options Outstanding, Number of Options | 2,334,810 |  |  |
Options Outstanding, Weighted Average Remaining Contractual Life (in Years) | 6 years 4 months 24 days |  |  |
Options Exercisable, Number of Options | 2,125,470 |  |  |
Options Exercisable, Weighted Average Remaining Contractual Life (in Years) | 6 years 4 months 20 days |  |  |
5.846 |  |  |  |
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items] |  |  |  |
Exercise Price, Shares | 5.846 |  |  |
Options Outstanding, Number of Options | 1,802,595 |  |  |
Options Outstanding, Weighted Average Remaining Contractual Life (in Years) | 7 years 7 months 2 days |  |  |
Options Exercisable, Number of Options | 1,164,672 |  |  |
Options Exercisable, Weighted Average Remaining Contractual Life (in Years) | 7 years 6 months 25 days |  |  |
6.006 |  |  |  |
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items] |  |  |  |
Exercise Price, Shares | 6.006 |  |  |
Options Outstanding, Number of Options | 5,907,345 |  |  |
Options Outstanding, Weighted Average Remaining Contractual Life (in Years) | 8 years 6 months 7 days |  |  |
Options Exercisable, Number of Options | 2,283,987 |  |  |
Options Exercisable, Weighted Average Remaining Contractual Life (in Years) | 8 years 6 months |  |  |
6.19 |  |  |  |
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items] |  |  |  |
Exercise Price, Shares | 6.190 |  |  |
Options Outstanding, Number of Options | 7,845,702 |  |  |
Options Outstanding, Weighted Average Remaining Contractual Life (in Years) | 9 years 4 months 24 days |  |  |
Options Exercisable, Number of Options | 2,545,133 |  |  |
Options Exercisable, Weighted Average Remaining Contractual Life (in Years) | 9 years 3 months 3 days |  |  |

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- Definition Number of fully vested and expected to vest exercisable options that may be converted into shares under option plan. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e)(2) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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