v3.25.1

BUSINESS COMBINATIONS AND ASSET ACQUISITIONS - Narrative (Details) $ / shares in Units, $ in Thousands		3 Months Ended		12 Months Ended
	Jan. 05, 2024 USD ($) individual $ / shares shares	Mar. 31, 2025 USD ($)	Mar. 31, 2024 USD ($)	Dec. 31, 2024 USD ($)
Business Acquisition
Cash paid to acquire		$ 0	$ 20,693
Clinic acquisitions		188
Domestic Clinics | Boston Brace International, Inc
Business Acquisition
Aggregate payable amount				$ 4,818
Cash consideration				3,388
Clinic acquisitions				3,367
Domestic Clinics | Boston Brace International, Inc | Promissory Note Maturing December 2025
Business Acquisition
Notes payable				$ 1,430
Interest rate (as a percent)				5.00%
Investment in private companies				$ 680
Boston Brace International, Inc
Business Acquisition
Cash paid to acquire	$ 21,535
Issuance of common stock	233
Fair value of estimated total acquisition consideration	21,767
Boston Brace International, Inc | Restricted Stock
Business Acquisition
Issuance of common stock	$ 2,500
Vesting period (in years)	3 years
Business combination, number of individuals received restricted stock awards | individual	170
Consideration for acquisition (in shares) | shares	83,000
Share acquisition price (in dollars per share) | $ / shares	$ 30.12
Domestic Clinics | Boston Brace International, Inc
Business Acquisition
Fair value of estimated total acquisition consideration		275
Payments to acquire businesses, gross		$ 175
Domestic Clinics | Boston Brace International, Inc | Promissory Note Maturing December 2026
Business Acquisition
Interest rate (as a percent)		4.00%
Principal amount		$ 100

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