v3.10.0.1

EMPLOYEE SAVINGS AND BENEFIT PLANS (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Deferred Compensation Plans |  |  |
Beginning of period balance | $ 40,995 | $ 10,875 | $ 10,137
Deferred compensation assumed in Merger | 0 | 27,057 | 0
Employee compensation deferrals | 384 | 840 | 963
Increase (decrease) in plan fair value | (1,742) | 3,407 | 720
End of period balance | 30,928 | 40,995 | 10,875
Employee Compensation Payments | (8,709) | 1,184 | (945)
Company's contribution to the 401K Plan |  |  |
401(K) savings plan expense | $ 6,100 | $ 2,900 | $ 1,000

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