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Derivative Instruments - Credit Risk and Credit-Risk-Related Contingent Feature (Details) | Sep. 30, 2019 institution
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Moody's, A1 Rating |
Derivative [Line Items] |
Number of financial institutions company does transactions with | 1

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- Definition Number Of Financial Institutions With Which The Company Has Transactions + References No definition available. + Details
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Namespace Prefix: | laur_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

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- 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
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | srt_CreditRatingMoodysAxis=srt_MoodysA1RatingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |