Condensed Consolidated Statements of Cash Flows - USD ($)	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Cash flows from operating activities
Net income	$ 75,264,000	$ 55,266,000
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation and amortization	29,101,000	18,680,000
Loss on exchange of Exchangeable Senior Notes	125,000
Other non-cash adjustments	127,000	47,000
Stock-based compensation	8,816,000	4,233,000
Amortization of discounts on short-term investments	(513,000)	(199,000)
Amortization of debt discount and issuance costs	689,000	1,174,000
Changes in assets and liabilities
Other assets, net	2,568,000	220,000
Accounts payable, accrued expenses and other liabilities	(1,290,000)	2,278,000
Rent received in advance and tenant security deposits	7,094,000	7,693,000
Net cash provided by operating activities	121,981,000	89,392,000
Cash flows from investing activities
Purchases of investments in real estate	(129,562,000)	(99,073,000)
Funding of draws for tenant improvements and construction	(291,408,000)	(152,052,000)
Funding of construction loan and other investments	(21,360,000)	(6,000,000)
Deposits in escrow for acquisitions	(600,000)	(150,000)
Purchases of short-term investments	(219,040,000)	(439,878,000)
Maturities of short-term investments	235,000,000	410,000,000
Net cash used in investing activities	(426,970,000)	(287,153,000)
Cash flows from financing activities
Issuance of common stock, net of offering costs	351,988,000
Gross proceeds from issuance of Notes due 2026		300,000,000
Payment of deferred financing costs from issuance of Notes due 2026		(6,484,000)
Dividends paid to common stockholders	(84,339,000)	(61,387,000)
Dividends paid to preferred stockholders	(676,000)	(676,000)
Taxes paid related to net share settlement of equity awards	(2,441,000)	(3,384,000)
Net cash provided by financing activities	264,532,000	228,069,000
Net (decrease) increase in cash, cash equivalents and restricted cash	(40,457,000)	30,308,000
Cash, cash equivalents and restricted cash, beginning of period	86,419,000	126,006,000
Cash, cash equivalents and restricted cash, end of period	45,962,000	156,314,000
Supplemental disclosure of cash flow information:
Cash paid during the period for interest	8,876,000	2,696,000
Supplemental disclosure of non-cash investing and financing activities:
Accrual for draws for tenant improvements and construction funding	31,210,000	60,670,000
Deposits applied for acquisitions	25,000	200,000
Accrual for common and preferred stock dividends declared	49,439,000	33,922,000
Accrual for deferred financing costs		$ 196,000
Exchange of Exchangeable Senior Notes for common stock	26,665,000
Operating lease liability for obtaining right of use asset	$ 1,017,000