XML 76 R55.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Business Combinations - Acquisition Related Costs and Measurement period adjustments (Details) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2018 USD ($) | Dec. 31, 2018 USD ($)
Business Acquisition [Line Items] |  |
Issuance costs |  | $ 148
Measurement adjustment to goodwill |  | 1,811
Capella Merger |  |
Business Acquisition [Line Items] |  |
Transaction costs | $ 19,100 | 19,100
Issuance costs |  | $ 100
Measurement period adjustment, current assets | (500) |
Measurement period adjustment, noncurrent assets | (1,400) |
Measurement adjustment to deferred income tax liabilities | 100 |
Measurement adjustment to goodwill | $ 1,800 |

X
- Definition This element represents the amount of any measurement period adjustment (as defined) realized during the reporting period to current financial assets acquired in connection with a business combination for which the initial accounting was incomplete. + References No definition available. + Details
Name: | stra_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentCurrentFinancialAssets
Namespace Prefix: | stra_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition This element represents the amount of any measurement period adjustment (as defined) realized during the reporting period to income tax liabilities assumed in connection with a business combination for which the initial accounting was incomplete. + References No definition available. + Details
Name: | stra_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentDeferredIncomeTaxLiabilities
Namespace Prefix: | stra_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition This element represents the amount of any measurement period adjustment (as defined) realized during the reporting period to noncurrent financial assets acquired in connection with a business combination for which the initial accounting was incomplete. + References No definition available. + Details
Name: | stra_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentNoncurrentFinancialAssets
Namespace Prefix: | stra_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of decrease in additional paid in capital (APIC) resulting from direct costs associated with issuing stock. Includes, but is not limited to, legal and accounting fees and direct costs associated with stock issues under a shelf registration. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 + Details
Name: | us-gaap_AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of direct costs of the business combination including legal, accounting, and other costs incurred to consummate the business acquisition. + References No definition available. + Details
Name: | us-gaap_BusinessAcquisitionCostOfAcquiredEntityTransactionCosts
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_BusinessAcquisitionLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of increase (decrease) from adjustments after acquisition date under purchase accounting of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 16 -URI http://asc.fasb.org/extlink&oid=84229725&loc=d3e961-128460 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267 + Details
Name: | us-gaap_GoodwillPurchaseAccountingAdjustments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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