Equity - Additional Information (Detail) $ / shares in Units, $ in Thousands		3 Months Ended				6 Months Ended
	Jul. 15, 2022 USD ($) $ / shares	Jun. 30, 2022 USD ($) shares	Mar. 31, 2022 USD ($)	Jun. 30, 2021 USD ($) shares	Mar. 31, 2021 USD ($)	Jun. 30, 2022 USD ($) agreement shares	Jun. 30, 2021 USD ($) shares	Dec. 31, 2021 USD ($) shares	Mar. 25, 2014 shares
Class of Stock [Line Items]
Shares authorized (in shares) | shares		500,000,000				500,000,000
Common stock, shares authorized (in shares) | shares		400,000,000				400,000,000		400,000,000
Preferred stock, shares authorized (in shares) | shares		100,000,000				100,000,000
Preferred stock, shares issued (in shares) | shares		0				0		0
Preferred stock, shares outstanding (in shares) | shares		0				0		0
Common stock, shares issued under dividend reinvestment program (in shares) | shares		2,781		434		3,420	949
Total dividends declared		$ 105,812	$ 105,801	$ 91,347	$ 91,349	$ 211,613	$ 182,696
Accumulated other comprehensive income		7,078				7,078		$ 8,308
Net realized and unrealized gains related to changes in fair value of derivative instruments		260,600				260,600		86,400
Cumulative unrealized currency translation adjustment on assets and liabilities denominated in foreign currencies		253,500				253,500		78,100
Subsequent Event
Class of Stock [Line Items]
Dividends paid per common stock (in dollars per share) | $ / shares	$ 0.62
Total dividends declared	$ 105,600
Joint Venture | Multifamily
Class of Stock [Line Items]
Total equity		169,300				169,300		203,500
Equity interests owned		143,900				143,900		173,000
Non-controlling interests		$ 25,400				$ 25,400		$ 30,500
Dividend Reinvestment and Direct Stock Purchase Plan
Class of Stock [Line Items]
Common shares reserved for issuance (in shares) | shares		9,986,370				9,986,370			10,000,000
ATM Agreement
Class of Stock [Line Items]
Number of equity distribution agreements | agreement						7
Aggregate sales price						$ 500,000
Number of shares sold (in shares) | shares						1,675,000	0
Shares sold						$ 52,200
Aggregate sales price remaining available		$ 300,900				$ 300,900