Per Share Data (Tables)

6 Months Ended

Jun. 30, 2019

A reconciliation of basic and diluted common shares used in the computation of per share data follows:



	Three Months Ended June 30,		Six Months Ended June 30, 2019
	2019	2018	2019	2018
Basic weighted-average shares	143,444,079	196,557,837	143,377,919	196,230,136
Effect of dilutive securities:
Options to purchase common stock	—	12,050,453	—	—
Restricted shares of common stock	—	1,247,646	—	—
Dilutive potential common shares	—	13,298,099	—	—
Weighted average common shares outstanding and dilutive potential common shares	143,444,079	209,855,936	143,377,919	196,230,136