Condensed Consolidated Statements of Equity (Parenthetical) - $ / shares	3 Months Ended
	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019
Statement of Stockholders' Equity [Abstract]
Cash dividend declared by board (in usd per share)	$ 0.78	$ 0.78	$ 0.77	$ 0.70	$ 0.63	$ 0.63
Distributions dividends declared (in usd per share)	$ 0.52	$ 0.52	$ 0.52	$ 0.50	$ 0.50	$ 0.50