Property and equipment included the following as of March 31, 2025 and December 31, 2024, respectively:



	Useful	March 31,		December 31,
(In thousands)	Life	2025		2024
Land	—	$	9,741	$	9,731
Buildings and improvements	31.5		101,957		100,128
Equipment	5-15		220,060		215,100
Instruments, modules, and cases	5		749,948		741,125
Other property and equipment	3-5		46,518		41,611
			1,128,224		1,107,695
Less: accumulated depreciation and amortization			(571,728)		(545,786)
Total		$	556,496	$	561,909

Instruments are hand-held devices used by surgeons to install implants during surgery. Modules and cases are used to store and transport the instruments and implants.

Depreciation expense related to property and equipment was as follows during the three months ended March 31, 2025 and 2024 respectively:



	Three Months Ended
	March 31,
(In thousands)	2025		2024
Depreciation	$	37,272	$	25,584