Defined-Contribution Savings Plan	12 Months Ended
Dec. 31, 2019
Defined-Contribution Savings Plan.
Defined-Contribution Savings Plan	16. Defined-Contribution Savings Plan The Company sponsors an employee retirement plan (the “401(k) Plan”) that provides certain eligible employees of the Company an opportunity to accumulate funds for retirement. The Company provides matching contributions on a discretionary basis. During the years ended December 31, 2019, 2018 and 2017, the Company recognized expense of $2.1 million, $1.8 million and $1.5 million, respectively, for matching contributions to the 401(k) Plan.

The entire disclosure for pension and other postretirement benefits.

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

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