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Retirement Plan | 12 Months Ended
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Dec. 31, 2018
Retirement Benefits [Abstract] |
Retirement Plan | Retirement PlanThe Company has a 401(k) defined contribution plan for the benefit for all US employees and permits voluntary contributions by employees subject to IRS-imposed limitations. Effective January 1, 2018, the Company matched 100% of eligible employee contributions on the first 4% of employee salary (up to the IRS maximum). Employer contributions for the year ended December 31, 2018, 2017 and 2016 were $2.2 million, $0.8 million and $0.6 million, respectively. Prior to 2018, the Company matched 100% of eligible employee contributions on the first 3% of employee salary (up to the IRS maximum).

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- Definition The entire disclosure for pension and other postretirement benefits. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -URI http://asc.fasb.org/topic&trid=2235017 + Details
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