Income Taxes - Schedule of Per Share Distributions to Stockholders (Detail) - $ / shares	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Common share distribution	$ 1.110000	$ 1.070000	$ 1.010000
Ordinary income	0.764580	0.603050	0.701910
Capital gains	0.165420		0.275040
Unrecaptured Sec. 1250 gain	0.058270		0.041160
Section 199A Dividends	0.764580	0.603050	0.701910
Return of capital	$ 0.180000	$ 0.466950	$ 0.033050