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Schedule II - Valuation and Qualifying Accounts | 12 Months Ended
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Dec. 31, 2019
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract] |
Schedule II - Valuation and Qualifying Accounts |
Description |  | Balance at Beginning of Period |  | Charged (Credited) to Costs and Expenses |  | Charged to Other Accounts |  | Deductions/Write-offs |  | Balance at End of Period
Allowance for deferred tax assets |  |  |  |  |  |  |  |  |  |
Year ended December 31, 2017 |  | $ | 474.1 |  |  | $ | (30.6) |  |  | $ | 18.8 |  | (1) |  | $ | — |  |  | $ | 462.3 |
Year ended December 31, 2018 |  | 462.3 |  |  | 4.6 |  |  | 15.8 |  | (1) |  | (135.2) |  | (2) |  | 347.5 |
Year ended December 31, 2019 |  | 347.5 |  |  | 5.0 |  |  | 16.6 |  | (3) |  | (11.2) |  | (4) |  | 357.9 |
_______________________ (1) Primarily represents the effects of cumulative translation adjustments. (2) Primarily relates to the expiration of Japan net operating losses. See Note 16: “Income Taxes”. (3) Primarily represents the effects of cumulative translation adjustments and includes $14.0 million of additional allowance for deferred tax assets arising from the Quantenna acquisition. (4) Primarily relates to the write-off of Hong Kong net operating losses upon the liquidation of Sanyo Semiconductor (H.K.) Co., Ltd. as well as the expiration of Japan net operating losses.

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- Definition The entire disclosure for valuation and qualifying accounts and reserves. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 12 -Subsection 09 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 + Details
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- References No definition available. + Details
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