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Restructuring Activity | 6 Months Ended
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Jun. 30, 2018
Restructuring and Related Activities [Abstract] |
Restructuring Activity | Restructuring Activity From time to time, the Company approves and implements restructuring plans as a result of acquisitions, internal resource alignment, and cost saving measures. Such restructuring plans include vacating certain leased facilities, terminating employees, and cancellation of contracts. The following table presents the activity related to the restructuring plans, which is included in restructuring charges in the consolidated statements of operations:
| Three Months Ended June 30, |  | Six Months Ended June 30,
| 2018 |  | 2017 |  | 2018 |  | 2017
| (in thousands)
Employee separation expenses | $ | 271 |  |  | $ | 5,996 |  |  | $ | 271 |  |  | $ | 5,996 |
Lease related charges | 1,594 |  |  | 550 |  |  | 1,594 |  |  | 550 |
| $ | 1,865 |  |  | $ | 6,546 |  |  | $ | 1,865 |  |  | $ | 6,546 |
Included in employee separation expenses for the three and six months ended June 30, 2017 is $4.4 million of incremental stock-based compensation from the acceleration of certain stock-based awards we assumed from Exar due to change in control provisions upon termination or diminution of authority of former Exar executives and other severance-related charges of $1.6 million for the same periods. Lease related charges related to exiting certain facilities. Lease related charges for the three and six months ended June 30, 2018 included impairment of leasehold improvements of $0.7 million. Total sublease income related to leased facilities the Company ceased using was approximately $0.6 million and $0.9 million for the three and six months ended June 30, 2018, respectively. Sublease income for such facilities was approximately $0.5 million and $1.0 million for the three and six months ended June 30, 2017, respectively. The Company does not expect to incur additional material costs related to current restructuring plans. The following table presents a roll-forward of the Company's restructuring liability for the six months ended June 30, 2018. The restructuring liability is included in accrued expenses and other current liabilities in the consolidated balance sheets.
| Employee Separation Expenses |  | Lease Related Charges |  | Other |  | Total
| (in thousands)
Balance as of December 31, 2017 | $ | 239 |  |  | $ | 2,693 |  |  | $ | 107 |  |  | $ | 3,039 |
Restructuring charges | 271 |  |  | 1,594 |  |  | — |  |  | 1,865 |
Cash payments | (420 | ) |  | (1,033 | ) |  | — |  |  | (1,453 | )
Non-cash items | (16 | ) |  | (762 | ) |  | (70 | ) |  | (848 | )
Balance as of June 30, 2018 | $ | 74 |  |  | $ | 2,492 |  |  | $ | 37 |  |  | $ | 2,603 |

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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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