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Subsequent Events	12 Months Ended
Subsequent Events	Dec. 31, 2018
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events On January 28, 2019, the Board declared a cash dividend of $0.22 per share of our common stock, estimated to be $9.8 million in total. The record date for the dividend will be April 4, 2019, and will be paid on April 25, 2019. At the same meeting, the Board authorized the Company to repurchase up to $100.0 million of the Company's common stock. The authorization is in effect from January 1, 2019 through December 31, 2019. During February 2019, a tentative settlement in principle was reached to resolve a certain pending legal proceeding outstanding as of the year end. As a result, the Company recorded a charge to Administrative expense, which decreased net income by approximately $2.9 million after taxes from the amount previously disclosed in the Company’s earnings release dated February 4, 2019. Diluted earnings per share decreased from $2.78 reported previously to $2.72 per diluted share. The adjustment had no material impact to the Company’s consolidated balance sheet or cash flows for the period.