Share-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2020

Share-based Payment Arrangement [Abstract]

Summary of Information about Restricted Stock Grants Outstanding

The following table summarizes information about outstanding restricted stock grants as of March 31, 2020:

Grant	Shares Granted	Unvested Shares	Vesting Schedule	Unearned Compensation		Remaining Period to Vesting (in months)
October 2017	303	72	3 equal annual installments commencing on October 20, 2018	$	392.6	7
October 2018	382	188	3 equal annual installments commencing on October 20, 2019	$	998.2	19
May 2019	71	59	Shares granted to independent board members that fully vest as of May 16, 2020	$	37.5	1
October 2019	12	12	3 equal annual installments commencing on October 20, 2020	$	70.4	31
January 2020	149	146	3 equal annual installments commencing on October 20, 2020	$	758.7	31

Summary of Information about Nonvested Restricted Stock Grants

The following table summarizes information about the non-vested restricted stock grants for the three months ended March 31, 2020 and 2019:

	Three Months Ended March 31,
	2020				2019
	Shares		Weighted- Average Grant-Date Fair Value		Shares		Weighted- Average Grant-Date Fair Value
Nonvested at beginning of the period	403		$	7.72	761		$	7.56
Granted	149		6.00		4		8.00
Vested	(46	)	7.72		—		—
Forfeited	(29	)	7.51		(5	)	7.93
Nonvested at March 31	477		$	7.20	760		$	6.84