Earnings per Share Earnings per Share (Tables)

6 Months Ended

Jun. 30, 2020

Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]

Schedule of Weighted Average Number of Shares [Table Text Block]

The following table summarizes the dilutive effect of RSUs and options to purchase common stock for the three and six months ended June 30, 2020 and 2019:

	Three months ended June 30,		Six months ended June 30,
	2020	2019	2020	2019
Weighted average common shares—basic	43,463,235	45,592,075	43,832,144	45,585,445
Dilutive effect of restricted stock units	—	174,571	—	253,796
Dilutive effect of stock options	—	61,669	—	71,008
Weighted average common shares—diluted	43,463,235	45,828,315	43,832,144	45,910,249

In March 2020, the Company announced its Board of Directors had authorized the Company to increase the purchase of its common stock up to $250 million in the aggregate.  The initial authorization, approved in November 2015, authorized up to $50 million in the aggregate of its common stock. The Company purchased no shares during the three months ended June 30, 2020 and 1,253,650 shares of its outstanding common stock for approximately $31.6 million during the six months ended June 30, 2020. During the three and six months ended June 30, 2019, the Company purchased 502,500 and 527,400 shares of its outstanding common stock for approximately $14.7 million and $15.4 million, respectively.