Summary of Significant Accounting Policies	9 Months Ended
Sep. 30, 2018
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Summary of Significant Accounting Policies The Company's significant accounting policies are disclosed in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2017. Refer to Note 3. Revenue Recognition, for the updated accounting policy of revenue recognition upon the adoption of ASU 2014-09, "Revenue from Contracts with Customers" (Topic 606) as of January 1, 2018. Recent accounting pronouncements Accounting Pronouncements Recently Adopted ASU 2014-09 In May 2014, the Financial Accounting Standards Board ("FASB") issued ASU 2014-09, "Revenue from Contracts with Customers" (Topic 606). The revenue recognition requirements in Accounting Standards Codification ("ASC") Topic 605, Revenue Recognition ("ASC 605") is superseded by Topic 606 ("ASC 606"). ASC 606 requires the recognition of revenue when promised goods or services are transferred to customers in an amount that reflects the consideration to which the entity expects to be entitled to in exchange for those goods or services. On January 1, 2018, the Company adopted ASC 606 and applied this guidance to the contracts which were not completed at the date of adoption using the modified retrospective method. Refer to Note 3. Revenue Recognition, for further details. ASU 2016-01 In January 2016, the FASB issued ASU 2016-01, “Recognition and Measurement of Financial Assets and Financial Liabilities" (Subtopic 825-10), which addresses certain aspects of recognition, measurement, presentation and disclosure of financial instruments. This guidance requires equity investments to be measured at fair value with changes in fair value recognized in net income. This guidance simplifies the impairment assessment of equity investments without readily determinable fair values by requiring a qualitative assessment to identify impairment. This guidance also clarifies that an entity should evaluate the need for a valuation allowance on a deferred tax asset related to available-for-sale securities in combination with the entity’s other deferred tax assets. The Company adopted the guidance effectively January 1, 2018. The adoption did not have a material impact to the Company. The Company believes the most significant impact will be that the adoption of the new guidance could increase the volatility of its Other income (expense), net, as a result of the re-measurement of its equity investments without readily determinable fair values upon the occurrence of observable price changes and impairments. ASU 2016-15 In August 2016, the FASB issued ASU 2016-15, "Classification of Certain Cash Receipts and Cash Payments" (Topic 230), which clarifies the classification of certain cash receipts and cash payments in the statement of cash flows, including settlement of contingent consideration arising from a business combination, insurance settlement proceeds, and distributions from certain equity method investees. The adoption of the guidance is required to be applied retrospectively and is effective for the Company in the first fiscal quarter of 2018. The Company adopted the guidance effectively January 1, 2018 and applied to the business combination transactions occurring on or after the adoption date. The adoption did not have material impacts on its financial position, results of operations or cash flows. ASU 2016-16 In October 2016, the FASB issued ASU 2016-16, "Income Taxes: Intra-Entity Transfers of Assets Other Than Inventory" (Topic 740), which requires the recognition of the income tax consequences of an intra-entity transfer of an asset, other than inventory, when the transfer occurs. This removes the exception to postpone recognition until the asset has been sold to an outside party. ASU 2016-16 is effective for the Company in the first fiscal quarter of 2018 and early adoption is permitted. The Company adopted the new standard effectively January 1, 2018. Upon adoption, the Company has recorded a deferred tax asset of $21.1 million resulting from differences in the tax basis of assets and the consolidated book basis of assets resulting from intra-entity transfers of intangible assets. The recognition of the deferred tax asset resulted in an increase to retained earnings upon adoption. Further, the Company estimates that adoption of the standard will increase tax expense by an approximate $1.3 million in 2018, but fluctuate over time due to different lives of the intangibles. There is no material impact on the Company's cash flows. ASU 2017-01 In January 2017, the FASB issued ASU 2017-01, "Business Combinations: Clarifying the Definition of a Business" (Topic 805), which changes the definition of a business to assist entities with evaluating when a set of transferred assets and activities is a business. The guidance requires an entity to evaluate if substantially all of the fair value of the gross assets acquired is concentrated in a single identifiable asset or a group of similar identifiable assets; if so, the set of transferred assets and activities is not a business. The Company adopted the guidance effectively January 1, 2018 and applied prospectively to the transactions occurring on or after the adoption date. The adoption did not have material impacts on its financial position, results of operations or cash flows. ASU 2017-12 In August 2017, the FASB issued ASU 2017-12, "Derivatives and Hedging: Targeted Improvements to Accounting for Hedging Activities" (Topic 815), which expands and refines hedge accounting for both non-financial and financial risk components and aligns the recognition and presentation of the effects of the hedging instrument and the hedged item in the financial statements. The guidance also makes certain targeted improvements to simplify the application of hedge accounting guidance, ease the administrative burden of hedge documentation requirements and assessing hedge effectiveness and ease the reporting on hedge ineffectiveness. ASU 2017-12 is effective for the Company in the first fiscal quarter of 2019 and early adoption is permitted. Entities should apply the guidance to existing cash flow and net investment hedge relationships using a modified retrospective approach with a cumulative effect adjustment recorded to opening retained earnings on the date of adoption. The guidance also provides transition relief to make it easier for entities to apply certain amendments to existing hedges where the hedge documentation needs to be modified. The Company early adopted the new guidance effectively January 1, 2018. The adoption did not impact opening retained earnings or have a material impact on the Company's consolidated financial statements. Additionally, upon adoption, the Company simplified its hedge accounting application by electing to include time value on currency cash flow hedge relationships prospectively. ASU 2018-02 In February 2018, the FASB issued ASU 2018-02, "Income Statement—Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income", which permits companies to reclassify tax effects stranded in Accumulated Other Comprehensive Income as a result of tax reform to retained earnings. ASU 2018-02 is effective for the Company in the first fiscal quarter of 2019 and early adoption is permitted. Entities have the option to reclassify these amounts rather than require reclassification and also have the option to apply the guidance retrospectively or at the beginning of the period of adoption. The Company early adopted the new guidance effectively January 1, 2018. Upon adoption, the Company has recognized immaterial adjustments to retained earnings at the beginning of the period of adoption. Accounting Pronouncements Not Yet Effective ASU 2016-02 In February 2016, FASB issued ASU 2016-02, "Leases" (Topic 842), which requires lessees to recognize on the balance sheets a right-of-use asset, representing its right to use the underlying asset for the lease term, and a corresponding lease liability for all leases with terms greater than twelve months. The liability will be equal to the present value of lease payments while the right-of-use asset will be based on the liability, subject to adjustment, such as for initial direct costs. In addition, ASU 2016-02 expands the disclosure requirements for lessees. Upon adoption, the Company will be required to record a lease asset and lease liability related to its operating leases. The new standard requires a modified retrospective transition through a cumulative-effect adjustment as of the beginning of the earliest period presented in the financial statements, although the FASB recently approved an option for transition relief to not restate or make required disclosures under the new standard in comparative periods in the period of adoption. ASU 2016-02 is effective for the Company in the first fiscal quarter of 2019, with early adoption permitted. The Company will adopt the new standard effective January 1, 2019 and will elect to utilize the FASB recently approved option for transition relief and adopt the modified retrospective transition through a cumulative-effect adjustment as of the adoption date. In accordance with the transition relief, the Company will not restate or make required disclosures under the new standard in comparative periods in the period of adoption. While the Company is currently evaluating the impact of the adoption of ASU 2016-02, based on the lease portfolio as of September 30, 2018, the most significant impact will be the recognition of right-of-use ("ROU") assets in the range of $45 million to $55 million, and lease liabilities in the range of $50 million to $60 million on its statement of financial position for operating leases, with limited impact to its results of operations and cash flows. $11 million to $14 million of the expected ROU assets and $12 million to $15 million of the expected lease liabilities are attributable to Arlo based on its lease portfolio as of September 30, 2018, exclusive of the build-to-suite lease arrangement relating to Arlo's San Jose Corporate headquarters. However, the ultimate impact of adopting ASU 2016-02 will depend on the Company’s lease portfolio as of the adoption date. The Company has selected lease software to assist with the adoption and commenced implementation. The Company expects to complete the adoption, including implementing processes and procedures, completing the lease accounting software implementation, and evaluating necessary disclosures prior to the first fiscal quarter of 2019. ASU 2016-13 In June 2016, the FASB issued ASU 2016-13, "Measurement of Credit Losses on Financial Instruments" (Topic 326), which replaces the incurred-loss impairment methodology and requires immediate recognition of estimated credit losses expected to occur for most financial assets, including trade receivables. Credit losses on available-for-sale debt securities with unrealized losses will be recognized as allowances for credit losses limited to the amount by which fair value is below amortized cost. ASU 2016-13 is effective for the Company beginning in the first fiscal quarter of 2020 and early adoption is permitted. The Company continues to assess the potential impact of the new guidance, but does not expect it to have material impacts on its financial position, results of operations or cash flows. ASU 2018-15 In August 2018, the FASB issued ASU 2018-15, “Intangibles-Goodwill and Other-Internal-Use Software (Topic 350): Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract”, which align the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software (and hosting arrangements that include an internal use software license). ASU 2018-15 is effective for the Company beginning in the first fiscal quarter of 2022, with early adoption permitted. The Company is currently evaluating the impact of the adoption on its consolidated financial statements. With the exception of the new standards discussed above, there have been no other new accounting pronouncements that have significance, or potential significance, to the Company's financial position, results of operations or cash flows.

Summary of Significant Accounting Policies

The Company's significant accounting policies are disclosed in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2017. Refer to Note 3. Revenue Recognition, for the updated accounting policy of revenue recognition upon the adoption of ASU 2014-09, "Revenue from Contracts with Customers" (Topic 606) as of January 1, 2018.

Recent accounting pronouncements

Accounting Pronouncements Recently Adopted

ASU 2014-09

In May 2014, the Financial Accounting Standards Board ("FASB") issued ASU 2014-09, "Revenue from Contracts with Customers" (Topic 606). The revenue recognition requirements in Accounting Standards Codification ("ASC") Topic 605, Revenue Recognition ("ASC 605") is superseded by Topic 606 ("ASC 606"). ASC 606 requires the recognition of revenue when promised goods or services are transferred to customers in an amount that reflects the consideration to which the entity expects to be entitled to in exchange for those goods or services. On January 1, 2018, the Company adopted ASC 606 and applied this guidance to the contracts which were not completed at the date of adoption using the modified retrospective method. Refer to Note 3. Revenue Recognition, for further details.

ASU 2016-01

In January 2016, the FASB issued ASU 2016-01, “Recognition and Measurement of Financial Assets and Financial Liabilities" (Subtopic 825-10), which addresses certain aspects of recognition, measurement, presentation and disclosure of financial instruments. This guidance requires equity investments to be measured at fair value with changes in fair value recognized in net income. This guidance simplifies the impairment assessment of equity investments without readily determinable fair values by requiring a qualitative assessment to identify impairment. This guidance also clarifies that an entity should evaluate the need for a valuation allowance on a deferred tax asset related to available-for-sale securities in combination with the entity’s other deferred tax assets. The Company adopted the guidance effectively January 1, 2018. The adoption did not have a material impact to the Company. The Company believes the most significant impact will be that the adoption of the new guidance could increase the volatility of its Other income (expense), net, as a result of the re-measurement of its equity investments without readily determinable fair values upon the occurrence of observable price changes and impairments.

ASU 2016-15

In August 2016, the FASB issued ASU 2016-15, "Classification of Certain Cash Receipts and Cash Payments" (Topic 230), which clarifies the classification of certain cash receipts and cash payments in the statement of cash flows, including settlement of contingent consideration arising from a business combination, insurance settlement proceeds, and distributions from certain equity method investees. The adoption of the guidance is required to be applied retrospectively and is effective for the Company in the first fiscal quarter of 2018. The Company adopted the guidance effectively January 1, 2018 and applied to the business combination transactions occurring on or after the adoption date. The adoption did not have material impacts on its financial position, results of operations or cash flows.

ASU 2016-16

In October 2016, the FASB issued ASU 2016-16, "Income Taxes: Intra-Entity Transfers of Assets Other Than Inventory" (Topic 740), which requires the recognition of the income tax consequences of an intra-entity transfer of an asset, other than inventory, when the transfer occurs. This removes the exception to postpone recognition until the asset has been sold to an outside party. ASU 2016-16 is effective for the Company in the first fiscal quarter of 2018 and early adoption is permitted. The Company adopted the new standard effectively January 1, 2018. Upon adoption, the Company has recorded a deferred tax asset of $21.1 million resulting from differences in the tax basis of assets and the consolidated book basis of assets resulting from intra-entity transfers of intangible assets. The recognition of the deferred tax asset resulted in an increase to retained earnings upon adoption. Further, the Company estimates that adoption of the standard will increase tax expense by an approximate $1.3 million in 2018, but fluctuate over time due to different lives of the intangibles. There is no material impact on the Company's cash flows.

ASU 2017-01

In January 2017, the FASB issued ASU 2017-01, "Business Combinations: Clarifying the Definition of a Business" (Topic 805), which changes the definition of a business to assist entities with evaluating when a set of transferred assets and activities is a business. The guidance requires an entity to evaluate if substantially all of the fair value of the gross assets acquired is concentrated in a single identifiable asset or a group of similar identifiable assets; if so, the set of transferred assets and activities is not a business. The Company adopted the guidance effectively January 1, 2018 and applied prospectively to the transactions occurring on or after the adoption date. The adoption did not have material impacts on its financial position, results of operations or cash flows.

ASU 2017-12

In August 2017, the FASB issued ASU 2017-12, "Derivatives and Hedging: Targeted Improvements to Accounting for Hedging Activities" (Topic 815), which expands and refines hedge accounting for both non-financial and financial risk components and aligns the recognition and presentation of the effects of the hedging instrument and the hedged item in the financial statements. The guidance also makes certain targeted improvements to simplify the application of hedge accounting guidance, ease the administrative burden of hedge documentation requirements and assessing hedge effectiveness and ease the reporting on hedge ineffectiveness. ASU 2017-12 is effective for the Company in the first fiscal quarter of 2019 and early adoption is permitted. Entities should apply the guidance to existing cash flow and net investment hedge relationships using a modified retrospective approach with a cumulative effect adjustment recorded to opening retained earnings on the date of adoption. The guidance also provides transition relief to make it easier for entities to apply certain amendments to existing hedges where the hedge documentation needs to be modified. The Company early adopted the new guidance effectively January 1, 2018. The adoption did not impact opening retained earnings or have a material impact on the Company's consolidated financial statements. Additionally, upon adoption, the Company simplified its hedge accounting application by electing to include time value on currency cash flow hedge relationships prospectively.

ASU 2018-02

In February 2018, the FASB issued ASU 2018-02, "Income Statement—Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income", which permits companies to reclassify tax effects stranded in Accumulated Other Comprehensive Income as a result of tax reform to retained earnings. ASU 2018-02 is effective for the Company in the first fiscal quarter of 2019 and early adoption is permitted. Entities have the option to reclassify these amounts rather than require reclassification and also have the option to apply the guidance retrospectively or at the beginning of the period of adoption. The Company early adopted the new guidance effectively January 1, 2018. Upon adoption, the Company has recognized immaterial adjustments to retained earnings at the beginning of the period of adoption.

Accounting Pronouncements Not Yet Effective

ASU 2016-02

In February 2016, FASB issued ASU 2016-02, "Leases" (Topic 842), which requires lessees to recognize on the balance sheets a right-of-use asset, representing its right to use the underlying asset for the lease term, and a corresponding lease liability for all leases with terms greater than twelve months. The liability will be equal to the present value of lease payments while the right-of-use asset will be based on the liability, subject to adjustment, such as for initial direct costs. In addition, ASU 2016-02 expands the disclosure requirements for lessees. Upon adoption, the Company will be required to record a lease asset and lease liability related to its operating leases. The new standard requires a modified retrospective transition through a cumulative-effect adjustment as of the beginning of the earliest period presented in the financial statements, although the FASB recently approved an option for transition relief to not restate or make required disclosures under the new standard in comparative periods in the period of adoption. ASU 2016-02 is effective for the Company in the first fiscal quarter of 2019, with early adoption permitted.

The Company will adopt the new standard effective January 1, 2019 and will elect to utilize the FASB recently approved option for transition relief and adopt the modified retrospective transition through a cumulative-effect adjustment as of the adoption date. In accordance with the transition relief, the Company will not restate or make required disclosures under the new standard in comparative periods in the period of adoption. While the Company is currently evaluating the impact of the adoption of ASU 2016-02, based on the lease portfolio as of September 30, 2018, the most significant impact will be the recognition of right-of-use ("ROU") assets in the range of $45 million to $55 million, and lease liabilities in the range of $50 million to $60 million on its statement of financial position for operating leases, with limited impact to its results of operations and cash flows. $11 million to $14 million of the expected ROU assets and $12 million to $15 million of the expected lease liabilities are attributable to Arlo based on its lease portfolio as of September 30, 2018, exclusive of the build-to-suite lease arrangement relating to Arlo's San Jose Corporate headquarters. However, the ultimate impact of adopting ASU 2016-02 will depend on the Company’s lease portfolio as of the adoption date. The Company has selected lease software to assist with the adoption and commenced implementation. The Company expects to complete the adoption, including implementing processes and procedures, completing the lease accounting software implementation, and evaluating necessary disclosures prior to the first fiscal quarter of 2019.

ASU 2016-13

In June 2016, the FASB issued ASU 2016-13, "Measurement of Credit Losses on Financial Instruments" (Topic 326), which replaces the incurred-loss impairment methodology and requires immediate recognition of estimated credit losses expected to occur for most financial assets, including trade receivables. Credit losses on available-for-sale debt securities with unrealized losses will be recognized as allowances for credit losses limited to the amount by which fair value is below amortized cost. ASU 2016-13 is effective for the Company beginning in the first fiscal quarter of 2020 and early adoption is permitted. The Company continues to assess the potential impact of the new guidance, but does not expect it to have material impacts on its financial position, results of operations or cash flows.

ASU 2018-15

In August 2018, the FASB issued ASU 2018-15, “Intangibles-Goodwill and Other-Internal-Use Software (Topic 350): Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract”, which align the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software (and hosting arrangements that include an internal use software license). ASU 2018-15 is effective for the Company beginning in the first fiscal quarter of 2022, with early adoption permitted. The Company is currently evaluating the impact of the adoption on its consolidated financial statements.

With the exception of the new standards discussed above, there have been no other new accounting pronouncements that have significance, or potential significance, to the Company's financial position, results of operations or cash flows.