Noncontrolling Interests In Operating Partnership and Other Noncontrolling Interests - Additional Information (Details) $ / shares in Units, $ in Thousands			12 Months Ended
	Apr. 25, 2019 shares	Dec. 01, 2018 shares	Dec. 31, 2020 USD ($) joint_venture store $ / shares shares	Dec. 31, 2019 USD ($) store	Dec. 31, 2018 USD ($) store
Noncontrolling Interest [Line Items]
Period used as a denomination to determine the average closing price of common stock			10 days
Ten day average closing stock price (in dollars per share) | $ / shares			$ 114.15
OP units outstanding (in units) | shares			5,800,785
Consideration to be paid on redemption of common OP units | $			$ 662,160
Number of owned stores				16	28
Joint venture one | Texas
Noncontrolling Interest [Line Items]
Number of owned stores			2
Joint venture one | Colorado
Noncontrolling Interest [Line Items]
Number of owned stores			2
Joint venture two | Pennsylvania
Noncontrolling Interest [Line Items]
Number of owned stores			1
Joint venture two | New Jersey
Noncontrolling Interest [Line Items]
Number of owned stores			1
Operating Partnership
Noncontrolling Interest [Line Items]
Ownership interest held by entity (as a percent)			94.20%
Voting interests of third-party owners			5.80%
Series C Units
Noncontrolling Interest [Line Items]
Conversion of units, units converted (in shares) | shares	296,020	407,996
Reduction of noncontrolling interest for note receivable | $					$ 8,644
Operating Partnership
Noncontrolling Interest [Line Items]
Conversion of units, units issued upon conversion (in shares) | shares	270,709	373,113
Reduction of noncontrolling interest for note receivable | $			$ 2,311	$ 18,524	$ 11,091
Common Stock
Noncontrolling Interest [Line Items]
Unit conversion ratio			1
Other
Noncontrolling Interest [Line Items]
Number of consolidated joint ventures | joint_venture			2
Other | Joint venture one | Minimum
Noncontrolling Interest [Line Items]
Voting interests of third-party owners			5.00%
Other | Joint venture one | Maximum
Noncontrolling Interest [Line Items]
Voting interests of third-party owners			20.00%