Share Repurchase Program	3 Months Ended
Mar. 31, 2019
Equity [Abstract]
Share Repurchase Program	12. Share Repurchase Program In September 2017, the Board of Directors authorized a fifteen-month share repurchase program for up to $100.0 million that commenced in October 2017. The expiration date of this program was subsequently extended to March 31, 2019. In January 2019, the Board of Directors authorized a new two-year share repurchase program for up to $100.0 million that commenced in April 2019. For the three months ended March 31, 2019, the Company repurchased 23,365 shares of common stock at a cost of $5.2 million. Shares repurchased under each program will be held in treasury for future use.

The entire disclosure for treasury stock, including, but not limited to, average cost per share, description of share repurchase program, shares repurchased, shares held for each class of treasury stock.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 30
-URI http://asc.fasb.org/subtopic&trid=2208821

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