XML 76 R65.htm IDEA: XBRL DOCUMENT
v3.25.2

Other Assets - Narrative (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | 12 Months Ended | 78 Months Ended
--- | --- | --- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024 | Dec. 31, 2024 | Dec. 31, 2020 | Dec. 31, 2031
Schedule of Other Assets [Line Items] |  |  |  |  |  |  |
Prepaid expenses, net of current portion | $ 15,343 |  | $ 15,343 |  | $ 15,678 |  |
Capital contributions | $ 141 | $ 62 | $ 231 | $ 96 |  |  |
Minimum | Limited Partnerships |  |  |  |  |  |  |
Schedule of Other Assets [Line Items] |  |  |  |  |  |  |
Ownership percentage | 3.00% |  | 3.00% |  |  |  |
Maximum | Limited Partnerships |  |  |  |  |  |  |
Schedule of Other Assets [Line Items] |  |  |  |  |  |  |
Ownership percentage | 5.00% |  | 5.00% |  |  |  |
Forecast |  |  |  |  |  |  |
Schedule of Other Assets [Line Items] |  |  |  |  |  |  |
Capital contributions |  |  |  |  |  |  | $ 1,900
Jack Welch Management Institute |  |  |  |  |  |  |
Schedule of Other Assets [Line Items] |  |  |  |  |  |  |
Payment for license agreement |  |  |  |  |  | $ 25,300 |
Prepaid expenses, net of current portion | $ 13,900 |  | $ 13,900 |  | $ 14,700 |  |
Prepaid expense, amortization period |  |  | 15 years |  | 15 years |  |

X
- Definition Payment For License Agreement + References No definition available. + Details
Name: | stra_PaymentForLicenseAgreement
Namespace Prefix: | stra_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Prepaid Expense, Amortization Period + References No definition available. + Details
Name: | stra_PrepaidExpenseAmortizationPeriod
Namespace Prefix: | stra_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Schedule of Other Assets + References No definition available. + Details
Name: | stra_ScheduleOfOtherAssetsLineItems
Namespace Prefix: | stra_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 28 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-28 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 323 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481687/323-10-50-3 + Details
Name: | us-gaap_EquityMethodInvestmentOwnershipPercentage
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Cash outflow related to the acquisition or continued holding of limited partnership interests held for investment purposes. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 13 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-13 + Details
Name: | us-gaap_PaymentsToAcquireLimitedPartnershipInterests
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Sum of the carrying amounts as of the balance sheet date of amounts paid in advance for expenses which will be charged against earnings in periods after one year or beyond the operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(17)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 + Details
Name: | us-gaap_PrepaidExpenseNoncurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=stra_LimitedPartnershipsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementScenarioAxis=srt_ScenarioForecastMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=stra_JackWelchManagementInstituteMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |