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Restructuring Activity | 12 Months Ended
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Dec. 31, 2019
Restructuring and Related Activities [Abstract] |
Restructuring Activity | Restructuring Activity From time to time, the Company approves and implements restructuring plans as a result of internal resource alignment, and cost saving measures. Such restructuring plans include terminating employees, vacating certain leased facilities, and cancellation of contracts. The following table presents the activity related to the plans, which is included in restructuring charges in the consolidated statements of operations:
| Years Ended December 31,
| 2019 |  | 2018 |  | 2017
| (in thousands)
Employee separation expenses | $ | 1,150 |  |  | $ | 2,094 |  |  | $ | 8,353 |
Lease related expenses | 1,301 |  |  | 1,608 |  |  | 1,025 |
Other | 185 |  |  | 136 |  |  | 146 |
| $ | 2,636 |  |  | $ | 3,838 |  |  | $ | 9,524 |
Included in employee separation expenses for the year ended December 31, 2017 is stock-based compensation from the acceleration of certain stock-based awards the Company assumed from Exar due to existing change in control provisions triggered upon termination or diminution of authority of former Exar executives of $5.1 million. Lease related and other charges primarily related to exiting certain redundant facilities. The following table presents a roll-forward of the Company's restructuring liability for the years ended December 31, 2019 and 2018. The restructuring liability is included in accrued expenses and other current liabilities and other long-term liabilities in the consolidated balance sheets.
| Employee Separation Expenses |  | Lease Related Expenses |  | Other |  | Total
| (in thousands)
Liability as of December 31, 2017 | $ | 239 |  |  | $ | 2,693 |  |  | $ | 107 |  |  | $ | 3,039 |
Restructuring charges | 2,094 |  |  | 1,608 |  |  | 136 |  |  | 3,838 |
Cash payments | (1,924 | ) |  | (1,884 | ) |  | (196 | ) |  | (4,004 | )
Non-cash charges | — |  |  | (927 | ) |  | — |  |  | (927 | )
Liability as of December 31, 2018 | 409 |  |  | 1,490 |  |  | 47 |  |  | 1,946 |
Restructuring charges | 1,150 |  |  | 1,301 |  |  | 185 |  |  | 2,636 |
Transfer to right-of-use asset | — |  |  | (299 | ) |  | — |  |  | (299 | )
Cash payments | (1,559 | ) |  | (1,720 | ) |  | (163 | ) |  | (3,442 | )
Non-cash charges and adjustments | — |  |  | 46 |  |  | (50 | ) |  | (4 | )
Liability as of December 31, 2019 | — |  |  | 818 |  |  | 19 |  |  | 837 |
Less: current portion as of December 31, 2019 | — |  |  | (275 | ) |  | (19 | ) |  | (294 | )
Long-term portion as of December 31, 2019 | $ | — |  |  | $ | 543 |  |  | $ | — |  |  | $ | 543 |
Remaining lease related charges as of December 31, 2019 primarily consist of common area maintenance obligations.

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- Definition The entire disclosure for restructuring and related activities. Description of restructuring activities such as exit and disposal activities, include facts and circumstances leading to the plan, the expected plan completion date, the major types of costs associated with the plan activities, total expected costs, the accrual balance at the end of the period, and the periods over which the remaining accrual will be settled. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -URI http://asc.fasb.org/topic&trid=2175745 + Details
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