401 (K) RETIREMENT SAVINGS PLAN (Details) - USD ($) $ in Millions |
12 Months Ended | ||
---|---|---|---|
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
|
Defined Contribution Pension and Other Postretirement Plans Disclosure [Abstract] | |||
Employee's elective deferrals | 100.00% | ||
Matching contributions by employer (up to) | 4.00% | ||
Employer matching contributions to the Retirement Savings Plan | $ 2.0 | $ 1.6 | $ 1.5 |