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NATURE OF BUSINESS AND BASIS OF PRESENTATION (Details) $ / shares in Units, $ in Thousands | 1 Months Ended | 3 Months Ended | 6 Months Ended |
--- | --- | --- | --- | ---
Mar. 31, 2024 USD ($) $ / shares shares | Jun. 30, 2024 USD ($) center | Jun. 30, 2023 USD ($) | Jun. 30, 2024 USD ($) center | Jun. 30, 2023 USD ($) | Dec. 31, 2023 USD ($)
Business Acquisition [Line Items] |  |  |  |  |  |
Number of centers | center |  | 398 |  | 398 |  |
BRMG and NY Groups revenues |  | $ 54,900 | $ 51,400 | $ 107,200 | $ 100,200 |
BRMG and NY Groups operating expenses |  | 54,900 | 51,400 | 107,200 | 100,200 |
Management services provided to BRMG and NY Groups |  | 231,100 | $ 216,200 | 465,900 | $ 423,600 |
BRMG and NY Groups accounts receivable |  | 3,229,423 |  | 3,229,423 |  | $ 2,690,473
BRMG and NY Groups accounts payable |  | 2,136,583 |  | 2,136,583 |  | 1,877,114
Variable Interest Entity, Primary Beneficiary |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
BRMG and NY Groups accounts receivable |  | 113,400 |  | 113,400 |  | 94,100
BRMG and NY Groups accounts payable |  | $ 22,500 |  | $ 22,500 |  | $ 16,700
Common Stock | Public Offering |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Number of shares issued in transaction (in shares) | shares | 5,232,500 |  |  |  |  |
Stock price (in dollars per share) | $ / shares | $ 44.00 |  |  |  |  |
Gross proceeds | $ 230,200 |  |  |  |  |
Public offering expenses | $ 11,800 |  |  |  |  |
Common Stock | Public Offering | Sold Pursuant to Exercise |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Number of shares issued in transaction (in shares) | shares | 682,500 |  |  |  |  |

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