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Warrants (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended |  |  |  |
--- | --- | --- | --- | --- | ---
Mar. 27, 2020 | Mar. 29, 2019 | Dec. 31, 2019 | Dec. 20, 2019 | Dec. 17, 2019 | Sep. 26, 2016
Class of Warrant or Right [Line Items] |  |  |  |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights |  |  |  |  |  | $ 4.76
Reduction to net revenues - amortization of the Warrant | $ 434 | $ 25 |  |  |  |
Comcast Warrants Exercise in its Entirety [Member] |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |
Right to purchase shares vested |  |  |  |  | 3,217,547 |
Comcast Warrants Exercise Shares Delivered [Member] |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right |  |  |  | 804,387 |  |
Comcast Warrants Exercised Shares Remaining to be Issued [Member] |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |
Right to purchase shares vested |  |  | 2,413,160 |  |  |
Maximum [Member] | Comcast Warrant Expires September 26, 2023 [Member] |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights |  |  |  |  |  | 7,816,162
Revenue from Contract with Customer Benchmark [Member] |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |
Reduction to net revenues - amortization of the Warrant | $ 400 | $ 25 |  |  |  |

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- Definition Adjustment for noncash service expenses paid for by granting of warrants. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585 + Details
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- Definition Exercise price per share or per unit of warrants or rights outstanding. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(i)(4)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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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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- Definition Number of securities into which each warrant or right may be converted. For example, but not limited to, each warrant may be converted into two shares. + References No definition available. + Details
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- Definition Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(i)(2)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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- Definition Number of warrants or rights outstanding. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(i)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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