XML 93 R84.htm IDEA: XBRL DOCUMENT
v3.20.2

Fair Value Measurement (Details) - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Schedule of assets and liabilities measured at fair value on a recurring basis |  |
Money market funds | $ 419,693 | $ 311,732
Marketable securities | 71,507 | 74,799
Liabilities: |  |
Accounts payable and accrued liabilities | 90,828 | 85,979
Recurring |  |
Schedule of assets and liabilities measured at fair value on a recurring basis |  |
Total assets at fair value on a recurring basis | 102,200 | 77,090
Money market funds | Recurring |  |
Schedule of assets and liabilities measured at fair value on a recurring basis |  |
Money market funds | 30,693 | 1,791
Corporate debt securities |  |
Schedule of assets and liabilities measured at fair value on a recurring basis |  |
Marketable securities | 42,709 | 47,930
Corporate debt securities | Recurring |  |
Schedule of assets and liabilities measured at fair value on a recurring basis |  |
Marketable securities | 42,709 | 48,430
Tax-exempt municipal securities |  |
Schedule of assets and liabilities measured at fair value on a recurring basis |  |
Marketable securities | 23,198 | 22,869
Tax-exempt municipal securities | Recurring |  |
Schedule of assets and liabilities measured at fair value on a recurring basis |  |
Marketable securities | 23,198 | 22,869
Variable rate demand notes |  |
Schedule of assets and liabilities measured at fair value on a recurring basis |  |
Marketable securities | 5,600 | 4,000
Variable rate demand notes | Recurring |  |
Schedule of assets and liabilities measured at fair value on a recurring basis |  |
Marketable securities | 5,600 | 4,000
Deferred payments | Recurring |  |
Liabilities: |  |
Accounts payable and accrued liabilities | 3,257 | 4,120
Quoted Prices In Active Markets For Identical Assets/Liabilities (Level 1) | Recurring |  |
Schedule of assets and liabilities measured at fair value on a recurring basis |  |
Total assets at fair value on a recurring basis | 30,693 | 1,791
Quoted Prices In Active Markets For Identical Assets/Liabilities (Level 1) | Money market funds | Recurring |  |
Schedule of assets and liabilities measured at fair value on a recurring basis |  |
Money market funds | 30,693 | 1,791
Significant Other Observable Inputs (Level 2) | Recurring |  |
Schedule of assets and liabilities measured at fair value on a recurring basis |  |
Total assets at fair value on a recurring basis | 71,507 | 75,299
Significant Other Observable Inputs (Level 2) | Corporate debt securities | Recurring |  |
Schedule of assets and liabilities measured at fair value on a recurring basis |  |
Marketable securities | 42,709 | 48,430
Significant Other Observable Inputs (Level 2) | Tax-exempt municipal securities | Recurring |  |
Schedule of assets and liabilities measured at fair value on a recurring basis |  |
Marketable securities | 23,198 | 22,869
Significant Other Observable Inputs (Level 2) | Variable rate demand notes | Recurring |  |
Schedule of assets and liabilities measured at fair value on a recurring basis |  |
Marketable securities | 5,600 | 4,000
Significant Unobservable Inputs (Level 3) | Deferred payments | Recurring |  |
Liabilities: |  |
Accounts payable and accrued liabilities | $ 3,257 | $ 4,120

X
- Definition Sum of the carrying values as of the balance sheet date of obligations incurred through that date, including liabilities incurred and payable to vendors for goods and services received, taxes, interest, rent and utilities, compensation costs, payroll taxes and fringe benefits (other than pension and postretirement obligations), contractual rights and obligations, and statutory obligations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.15) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.15(1),(5)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 + Details
Name: | us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details
Name: | us-gaap_AssetsFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(6)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121558606&loc=SL82898722-210454 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121553693&loc=d3e26610-111562 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (aa) -URI http://asc.fasb.org/extlink&oid=121645371&loc=d3e27161-111563 + Details
Name: | us-gaap_AvailableForSaleSecuritiesDebtSecurities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3044-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121566466&loc=d3e6676-107765 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.1) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_CashAndCashEquivalentsAtCarryingValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

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

X
- Details
Name: | us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsRecurringMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_MoneyMarketFundsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_CorporateDebtSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=stra_TaxExemptMunicipalSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=stra_VariableRateDemandNotesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=stra_DeferredPaymentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |