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Information Regarding Members of the Board of Directors and Group Management - Summary of Remuneration Costs for the President and CEO and Other Members of Executive Team (ET) (Detail) - SEK (kr) | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Classes Of Employee Benefits Expense [line items] |  |  |
Salary | kr 154,729,302 | kr 152,100,147 | kr 128,252,290
Termination beneﬁts |  | 25,503,967 |
Annual variable remuneration provision earned for the year | 48,399,226 | 90,908,181 | 52,507,185
Long-term variable compensation provision | 62,256,169 | 84,813,164 | 91,962,483
Pension costs | 34,759,447 | 52,104,709 | 50,455,851
Other beneﬁts | 20,404,020 | 20,302,786 | 11,755,319
Social charges and taxes | 64,768,431 | 82,824,511 | 80,103,179
Total | 385,316,595 | 508,557,465 | 415,036,307
The President and CEO [member] |  |  |
Classes Of Employee Benefits Expense [line items] |  |  |
Salary | 19,520,568 | 19,154,852 | 18,208,859
Long-term variable compensation provision | 31,708,587 | 41,125,015 | 43,701,650
Pension costs | 10,151,804 | 9,856,121 | 9,569,049
Other beneﬁts | 828,287 | 135,743 | 555,688
Social charges and taxes | 19,546,145 | 22,079,378 | 22,633,474
Total | 81,755,391 | 92,351,109 | 94,668,720
Other Members of Executive Team [member] |  |  |
Classes Of Employee Benefits Expense [line items] |  |  |
Salary | 135,208,734 | 132,945,295 | 110,043,431
Termination beneﬁts |  | 25,503,967 |
Annual variable remuneration provision earned for the year | 48,399,226 | 90,908,181 | 52,507,185
Long-term variable compensation provision | 30,547,582 | 43,688,149 | 48,260,833
Pension costs | 24,607,643 | 42,248,588 | 40,886,802
Other beneﬁts | 19,575,733 | 20,167,043 | 11,199,631
Social charges and taxes | 45,222,286 | 60,745,133 | 57,469,705
Total | kr 303,561,204 | kr 416,206,356 | kr 320,367,587

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- Definition Cost for annual variable remuneration earned in year to be paid year after. + References No definition available. + Details
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- Definition The amount of remuneration paid or payable to the entity's directors. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 112 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_112_c&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The amount of compensation to key management personnel in the form of other long-term employee benefits. [Refer: Other long-term employee benefits; Key management personnel of entity or parent [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 24 -IssueDate 2023-01-01 -Paragraph 17 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=24&code=ifrs-tx-2023-en-r&anchor=para_17_c&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The amount of employee expenses that the entity does not separately disclose in the same statement or note. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 19 -IssueDate 2023-01-01 -Paragraph 5 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2023-en-r&anchor=para_5&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The amount of post-employment benefit expense included in profit or loss relating to defined benefit plans. [Refer: Profit (loss); Defined benefit plans [member]] [Contrast: Increase (decrease) in net defined benefit liability (asset) resulting from expense (income) in profit or loss] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 19 -IssueDate 2023-01-01 -Paragraph 5 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2023-en-r&anchor=para_5&doctype=Standard -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 19 -IssueDate 2023-01-01 -Paragraph 135 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2023-en-r&anchor=para_135_b&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition A class of employee benefits expense that represents social security contributions. [Refer: Employee benefits expense] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 19 -IssueDate 2023-01-01 -Paragraph 9 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2023-en-r&anchor=para_9&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The amount of expense in relation to termination benefits. Termination benefits are employee benefits provided in exchange for the termination of an employee's employment as a result of either: (a) an entity's decision to terminate an employee's employment before the normal retirement date; or (b) an employee's decision to accept an offer of benefits in exchange for the termination of employment. [Refer: Employee benefits expense] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 19 -IssueDate 2023-01-01 -Paragraph 171 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2023-en-r&anchor=para_171&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition A class of employee benefits expense that represents wages and salaries. [Refer: Employee benefits expense] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 19 -IssueDate 2023-01-01 -Paragraph 9 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2023-en-r&anchor=para_9&doctype=Standard -URIDate 2023-03-23 + Details
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