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Retirement Savings Plan | 12 Months Ended
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Dec. 31, 2017
Postemployment Benefits [Abstract] |
RETIREMENT SAVINGS PLAN | RETIREMENT SAVINGS PLAN The Company has a 401(k) retirement savings plan that covers all eligible U.S. employees. Eligible employees may elect to contribute up to 75% of base salary, subject to ERISA limitations. The Company generally makes matching contributions equal to the employee’s contribution up to 4% of the employee’s salary. The Company may also provide an additional contribution based on an eligible employee’s salary. Total plan expenses recognized for the years ended December 31, 2017, 2016, and 2015 were $7.3 million, $5.4 million, and $2.9 million, respectively, due to additional Company contributions. In addition, the Company has a deferred compensation plan for employees whose benefits under the 401(k) plan are limited by federal regulations.

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- References No definition available. + Details
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- Definition The entire disclosure for postemployment benefits, which may include supplemental unemployment benefits, obligations recognized for all types of benefits provided to former or inactive employees, their beneficiaries, and covered dependents after employment but before retirement. Disclosure may also include discussion that an obligation for postemployment benefits is not accrued in accordance with regulation only because the amount cannot be reasonably estimated. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 712 -URI http://asc.fasb.org/topic&trid=2197446 + Details
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