Stockholders' Equity - Narrative (Details)						3 Months Ended						9 Months Ended		176 Months Ended
	Aug. 27, 2024 USD ($)	May 07, 2024 shares	Mar. 27, 2024 USD ($) $ / shares shares	May 02, 2023 $ / shares	Feb. 13, 2023 USD ($) $ / shares shares	Sep. 30, 2024 USD ($) period $ / shares shares	Jun. 30, 2024 USD ($)	Mar. 31, 2024 USD ($)	Sep. 30, 2023 USD ($) $ / shares shares	Jun. 30, 2023 USD ($) shares	Mar. 31, 2023 USD ($) shares	Sep. 30, 2024 USD ($) period $ / shares shares	Sep. 30, 2023 USD ($) $ / shares shares	Sep. 30, 2024 USD ($) period $ / shares shares	Dec. 31, 2023 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award
Common stock, shares authorized (in shares) | shares						400,000,000						400,000,000		400,000,000	400,000,000
Common stock, par value (in dollars per share) | $ / shares						$ 0.01						$ 0.01		$ 0.01	$ 0.01
Preferred stock, authorized (in shares) | shares						100,000,000						100,000,000		100,000,000
Preferred stock, par value (in dollars per share) | $ / shares						$ 0.01						$ 0.01		$ 0.01
Number of shares issued (in shares) | shares						2,976,266						5,329,544
Weighted average offering price (in dollars per share) | $ / shares						$ 68.70			$ 60.78			$ 66.62	$ 61.61
Net proceeds form offerings									$ 94,400,000				$ 154,400,000
Total compensation to the applicable sales agents									$ 1,400,000				$ 2,300,000
Issuance of common stock (in shares) | shares									1,575,173				2,542,279
Underwriting discount and offering costs						$ 3,088,000	$ 0	$ 3,226,000	$ 1,438,000	$ 822,000	$ 943,000
Shares repurchase program, authorized repurchase amount (in shares) | shares						3,000,000						3,000,000		3,000,000
Withdraw from deferred compensation plan (in shares) | shares						0			0			0	0
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award
Granted (in shares) | shares												138,380
Grant date fair value per share of restricted stock awards (in dollars per share) | $ / shares												$ 63.48
Expense						$ 1,800,000			$ 1,600,000			$ 5,000,000.0	$ 4,600,000
Fair value of the restricted stock granted												8,800,000
Unrecognized compensation costs related to restricted stock issuances						$ 16,400,000						$ 16,400,000		$ 16,400,000
Remaining weighted average period												3 years 3 months 18 days
Minimum | Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award
Grant date fair value per share of restricted stock awards (in dollars per share) | $ / shares														$ 14.20
Vesting period for the restricted stock												3 years
Maximum | Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award
Grant date fair value per share of restricted stock awards (in dollars per share) | $ / shares														$ 78.33
Vesting period for the restricted stock												5 years
Common Shares Held in Deferred Compensation Plan
Share-based Compensation Arrangement by Share-based Payment Award
Deposits to deferred compensation plan (in shares) | shares										2,080	94,794
Deposits to deferred compensation plan (in shares) | shares												0	96,874
2019 Plan
Share-based Compensation Arrangement by Share-based Payment Award
Common stock, shares authorized (in shares) | shares						1,898,961						1,898,961		1,898,961
Granted (in shares) | shares		11,385
Grant date fair value per share of restricted stock awards (in dollars per share) | $ / shares				$ 54.90
Expense						$ 600,000						$ 600,000
Remaining balance of shares available (in shares) | shares						367,062						367,062		367,062
Long Term Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award
Number of shares issued (in shares) | shares												0
Number of measurement periods | period						3						3		3
$500 Million ATM Program
Share-based Compensation Arrangement by Share-based Payment Award
Common stock aggregate offering price												$ 500,000,000
Common stock remaining offering price						$ 438,300,000						438,300,000		$ 438,300,000
Net proceeds form offerings												349,900,000
Total compensation to the applicable sales agents												5,100,000
Previous At Market Equity Offering Program 500 Million
Share-based Compensation Arrangement by Share-based Payment Award
Common stock aggregate offering price	$ 500,000,000
Net proceeds form offerings												$ 201,500,000
Total compensation to the applicable sales agents						$ 3,000,000.0
$300 Million ATM Program
Share-based Compensation Arrangement by Share-based Payment Award
Common stock aggregate offering price	$ 300,000,000
IPO | Common Stock
Share-based Compensation Arrangement by Share-based Payment Award
Number of shares issued (in shares) | shares			6,325,000		5,750,000
Net proceeds form offerings			$ 387,100,000		$ 355,900,000
Shares issued, price per share (in dollars per share) | $ / shares			$ 62.00		$ 62.50
Underwriting discount and offering costs			$ 5,000,000		$ 3,500,000
Over-Allotment Option | Common Stock
Share-based Compensation Arrangement by Share-based Payment Award
Number of shares issued (in shares) | shares			825,000		750,000