Equity - Forward Equity Offering (Details) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended			12 Months Ended
	Dec. 31, 2019	Nov. 30, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Noncontrolling Interest [Line Items]
Forward rate per share (in usd per share)				$ 31.84
Issuance of common stock, net				$ 791,048	$ 215,179	$ 27,353
Forward Equity Offering
Noncontrolling Interest [Line Items]
Maximum shares issuable under forward equity sales agreement (in shares)		15,600,000	15,300,000	15,300,000
Forward rate per share (in usd per share)			$ 28.60	$ 30.91
Option indexed to issuers equity, term			1 year	1 year
Issuance of common stock, net	$ 422,000
Issuance of common stock, net (in shares)			0	15,300,000
2019 Forward Equity Offering
Noncontrolling Interest [Line Items]
Maximum shares issuable under forward equity sales agreement (in shares)		15,600,000
Forward rate per share (in usd per share)		$ 34.46
Option indexed to issuers equity, term		1 year
Issuance of common stock, net (in shares)				0
Maximum | Forward Equity Offering
Noncontrolling Interest [Line Items]
Sale of stock (in usd per share)	$ 27.66			$ 27.66
Common Stock
Noncontrolling Interest [Line Items]
Issuance of common stock, net				$ 189,000
Issuance of common stock, net (in shares)				5,900,000
Common Stock | Forward Equity Offering
Noncontrolling Interest [Line Items]
Sale of stock (in usd per share)			$ 28.60		$ 28.60
Issuance of common stock, net (in shares)			2,000,000,000,000
Proceeds from issuance of common stock			$ 57,000