Common Stock (Tables)

12 Months Ended

Dec. 31, 2018

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of reconciliation of changes in common shares issued

A reconciliation of the changes in common shares issued is as follows:

	Year ended December 31,
	2018	2017
Shares issued at the beginning of the year	60,622,986	59,684,669
Issued as restricted stock award grants	1,539,889	275,029
Issued upon exercise of stock options	—	663,288
Shares issued at the end of the year	62,162,875	60,622,986

Schedule of restricted stock activity

Restricted stock share activity for the year ended December 31, 2018 is as follows:

Restricted Stock Shares	Shares		Weighted- Average Fair Value at Date of Grant
Non-vested at January 1, 2018	246,258		$	12.24
Granted to employees	1,287,484		3.67
RSAs converted from 2016 restricted stock units	252,405		12.02
Vested	(578,114	)	10.82
Forfeited	(157,661	)	5.52
Non-vested at December 31, 2018	1,050,372		$	3.47

Schedule of restricted stock unit activity

Restricted stock unit share activity for the year ended December 31, 2018 is as follows:

Restricted Stock Unit Shares	Shares		Weighted- Average Fair Value at Date of Grant
RSU share equivalents at January 1, 2018	725,331		$	16.41
2016 RSUs converted to RSAs in 2018	(252,405	)	12.02
2017 share equivalents forfeited	(121,514	)	19.33
2017 share equivalents not earned	(351,412	)	18.56
2017 share equivalents	—		—
2018 share equivalents granted	407,698		3.95
2018 share equivalents forfeited	(105,932	)	3.95
RSU share equivalents at December 31, 2018	301,766		$	3.95