Condensed Consolidated Statements of Changes in Equity (Parenthetical) - $ / shares	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Dividends declared per share of common stock	$ 0.14	$ 0.14
Dividends declared and paid per share of common stock	$ 0.14	$ 0.14
Repurchase of Class A common stock, shares		233,172
Class A Common Stock [Member]
Equity-based compensation, shares	696,507	240,335
Grant of exchangeability and redemption of limited partnership interests, shares	2,105,401	1,820,588
Issuance of Class A common stock (net of costs), shares	71,663	61,642
Issuance of Class A common stock and RSUs for acquisitions, shares	270,000	18,217
Repurchase of Class A common stock, shares	0	233,000
Class A Common Stock [Member] | Partnership Units [Member]
Redemption of FPUs		2,300
Class A Common Stock [Member] | Smith Mack [Member]
Issuance of Class A common stock and RSUs for acquisitions, shares	270,496