Stockholders' Equity (Tables)

12 Months Ended

Dec. 31, 2019

Equity [Abstract]

Summary of Changes in Stockholders' Equity

A summary of the changes in stockholders’ equity for the years ended December 31, 2019, 2018 and 2017, is as follows (in thousands except per share amounts):

	Common Stock				Additional Paid-in		Dividends Paid in Excess
	Shares		Amount		Capital		of Earnings			Total
BALANCE, DECEMBER 31, 2016		34,393	$	344	$	485,659	$	(55,085	)	$	430,918
Net earnings								47,186			47,186
Dividends declared — $1.16 per share								(43,675	)		(43,675	)
Shares issued pursuant to Equity Offering, net		4,715	47			104,265		—			104,312
Shares issued pursuant to ATM Program, net	513		5			13,523		—			13,528
Shares issued pursuant to dividend reinvestment		48		1		1,270		—			1,271
Stock-based compensation and settlements		27		—		155		—			155
BALANCE, DECEMBER 31, 2017		39,696	$	397	$	604,872	$	(51,574	)	$	553,695
Net earnings								47,706			47,706
Dividends declared — $1.31 per share								(53,555	)		(53,555	)
Shares issued pursuant to ATM Program, net		1,106	11			30,127		—			30,138
Shares issued pursuant to dividend reinvestment	52			1		1,402		—			1,403
Stock-based compensation and settlements		1		—		1,777		—			1,777
BALANCE, DECEMBER 31, 2018		40,855	$	409	$	638,178	$	(57,423	)	$	581,164
Net earnings								49,723			49,723
Dividends declared — $1.42 per share								(59,402	)		(59,402	)
Shares issued pursuant to ATM Program, net		449		4		14,146		—			14,150
Shares issued pursuant to dividend reinvestment		47		1		1,450		—			1,451
Stock-based compensation and settlements		17		—		2,353		—			2,353
BALANCE, DECEMBER 31, 2019		41,368	$	414	$	656,127	$	(67,102	)	$	589,439