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v3.3.1.900

Fair Value Measurement (Details) - USD ($) $ in Thousands | Dec. 31, 2015 | Dec. 31, 2014
--- | --- | ---
Cash equivalents: |  |
Total assets at fair value on a recurring basis | $ 100 | $ 8,418
Other long-term liabilities: |  |
Total liabilities at fair value on a recurring basis | 3,278 | 2,398
Money market funds [Member] |  |
Cash equivalents: |  |
Total assets at fair value on a recurring basis | 100 | 8,275
Deferred payments [Member] |  |
Other long-term liabilities: |  |
Total liabilities at fair value on a recurring basis | 3,278 | 2,398
Interest rate swaps [Member] |  |
Cash equivalents: |  |
Total assets at fair value on a recurring basis |  | 143
Quoted Prices in Active Markets for Identical Assets/Liabilities (Level 1) [Member] |  |
Cash equivalents: |  |
Total assets at fair value on a recurring basis | $ 100 | $ 8,275
Other long-term liabilities: |  |
Total liabilities at fair value on a recurring basis |  |
Quoted Prices in Active Markets for Identical Assets/Liabilities (Level 1) [Member] | Money market funds [Member] |  |
Cash equivalents: |  |
Total assets at fair value on a recurring basis | $ 100 | $ 8,275
Quoted Prices in Active Markets for Identical Assets/Liabilities (Level 1) [Member] | Deferred payments [Member] |  |
Other long-term liabilities: |  |
Total liabilities at fair value on a recurring basis |  |
Quoted Prices in Active Markets for Identical Assets/Liabilities (Level 1) [Member] | Interest rate swaps [Member] |  |
Cash equivalents: |  |
Total assets at fair value on a recurring basis |  |
Significant Other Observable Inputs (Level 2) [Member] |  |
Cash equivalents: |  |
Total assets at fair value on a recurring basis |  | $ 143
Other long-term liabilities: |  |
Total liabilities at fair value on a recurring basis |  |
Significant Other Observable Inputs (Level 2) [Member] | Money market funds [Member] |  |
Cash equivalents: |  |
Total assets at fair value on a recurring basis |  |
Significant Other Observable Inputs (Level 2) [Member] | Deferred payments [Member] |  |
Other long-term liabilities: |  |
Total liabilities at fair value on a recurring basis |  |
Significant Other Observable Inputs (Level 2) [Member] | Interest rate swaps [Member] |  |
Cash equivalents: |  |
Total assets at fair value on a recurring basis |  | $ 143
Significant Unobservable Inputs (Level 3) [Member] |  |
Cash equivalents: |  |
Total assets at fair value on a recurring basis |  |
Other long-term liabilities: |  |
Total liabilities at fair value on a recurring basis | $ 3,278 | $ 2,398
Significant Unobservable Inputs (Level 3) [Member] | Money market funds [Member] |  |
Cash equivalents: |  |
Total assets at fair value on a recurring basis |  |
Significant Unobservable Inputs (Level 3) [Member] | Deferred payments [Member] |  |
Other long-term liabilities: |  |
Total liabilities at fair value on a recurring basis | $ 3,278 | $ 2,398
Significant Unobservable Inputs (Level 3) [Member] | Interest rate swaps [Member] |  |
Cash equivalents: |  |
Total assets at fair value on a recurring basis |  |

X
- Definition Cash equivalents fair value. + References No definition available. + Details
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Namespace Prefix: | stra_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Other liabilities fair value. + References No definition available. + Details
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Namespace Prefix: | stra_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition This element represents the aggregate of the assets reported on the balance sheet at period end measured at fair value on a recurring basis by the entity. This element is intended to be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Aggregation of the liabilities reported on the balance sheet measured at fair value on a recurring basis by the entity. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Details
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Balance Type: |
Period Type: |

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- Details
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- Details
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