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COMMITMENTS AND CONTINGENCIES | 12 Months Ended
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Dec. 31, 2018
COMMITMENTS AND CONTINGENCIES |
COMMITMENTS AND CONTINGENCIES | 10. COMMITMENTS AND CONTINGENCIES Operating Leases At December 31, 2018, the Company maintains leases for certain facilities and equipment. The Company has entered into facility agreements, some of which contain provisions for future rent increases. The total amount of rental payments due over the lease term is being charged to rent expense on the straight-line method over the term of the lease. The difference between rent expense recorded and the amount paid is credited or charged to deferred rent obligation, which is included in accrued liabilities in the accompanying consolidated balance sheets. Minimum future rental commitments under all non-cancelable operating leases are as follows (in thousands):
Year ending December 31, |  | Total
2019 |  | $ | 4,102
2020 |  |  | 3,556
2021 |  |  | 2,847
2022 |  |  | 2,286
2023 |  |  | 2,061
Thereafter |  |  | 7,782
|  | $ | 22,634
Rental expense was $3,566, $2,935 and $2,720 in 2018, 2017 and 2016, respectively. Severance Benefit Agreements As of December 31, 2018, the Company has annually renewable severance benefit agreements with key employees which, among other things, provide inducement to the employees to continue to work for the Company during and after any period of a potential change in control of the Company. The agreements provide the employees with specified benefits upon the subsequent severance of employment in the event of change in control of the Company and are effective for 24 months thereafter. Litigation The Company is involved in certain actions that have arisen out of the ordinary course of business. Management believes that resolution of the actions will not have a significant adverse effect on the Company’s consolidated financial statements.

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- Definition The entire disclosure for commitments and contingencies. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -URI http://asc.fasb.org/topic&trid=2127136 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 440 -URI http://asc.fasb.org/topic&trid=2144648 + Details
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