Benefit Plans - Sirius XM Holdings Inc. Deferred Compensation Plan (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | |||
|---|---|---|---|---|---|
Sep. 30, 2018 |
Sep. 30, 2017 |
Sep. 30, 2018 |
Sep. 30, 2017 |
Dec. 31, 2017 |
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| Retirement Benefits [Abstract] | |||||
| Deferred compensation contributions | $ 236 | $ 240 | $ 7,374 | $ 7,595 | |
| Fair value of investment assets related to deferred compensation plan | $ 23,398 | 23,398 | $ 14,641 | ||
| Unrealized gains (losses) on investments | $ 0 | $ 0 | |||
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- Definition Deferred Compensation Arrangement with Individual, Unrealized Gain (Loss) on Investment No definition available.
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- References No definition available.
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- Definition Amount of contributions made by employer into fund established for purposes of making future disbursement to individual in accordance with deferred compensation arrangement. No definition available.
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- Definition Carrying amount as of the balance sheet date of assets held under deferred compensation agreements. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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