Period over which grantee's right to exercise award under business combination arrangement over the service period, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

No definition available.

Equity and dividends (Narrative) (Details) - USD ($)		1 Months Ended	3 Months Ended
Equity and dividends (Narrative) (Details) - USD ($)	Dec. 08, 2020	Apr. 30, 2021	Mar. 31, 2021	Mar. 31, 2020
Dividends Payable [Line Items]
Preferred shares issued			0
Stock repurchased during period, shares			0	1,525,312
Stock repurchased during period, value				$ 53,170,000
Gain (Loss) from intra-entity foreign currency transactions			$ 3,654,000	(7,492,000)
Subsequent Events [Member]
Dividends Payable [Line Items]
Dividends declared (USD per share)		$ 0.22
Dividends payable date		Jun. 16, 2021
Dividends, date of record		May 26, 2021
Rouse Services LLC [Member]
Dividends Payable [Line Items]
Common shares issued (in shares)	312,193
Vesting period	3 years
Common stock consideration fair value	$ 1,459,000
Fair value of common shares (per share)	$ 71.09
Unrecognized share based continuing employment costs			$ 14,576,000	$ 0
Unrecognized share based continuing employment costs, weighted average period for recognition			1 year 9 months 18 days
Number of common shares restrictions have not yet vested			256,683
Shares forfeited			55,510