PROPERTY AND EQUIPMENT, NET (Summary Of Depreciation And Amortization, Capitalized Computer Software For Internal Use And Unpaid Property Equipment Reflected In Account Payable And Accrued Expenses) (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Property, Plant and Equipment [Line Items]
Depreciation and amortization expense	$ 100,994	$ 96,746	$ 92,376
Unpaid property and equipment, reflected in accounts payable and accrued liabilities at end of year	12,061	18,334	19,326
Reagent rental arrangements
Property, Plant and Equipment [Line Items]
Amount of rental and operating-type reagent rental program instruments transferred from inventory to property and equipment	14,608	17,407	11,628
Capitalization of internal-use software development costs during the period
Property, Plant and Equipment [Line Items]
Capitalization of internal-use software development costs during the period	$ 37,120	$ 20,329	$ 14,753

PROPERTY AND EQUIPMENT, NET (Summary Of Depreciation And Amortization, Capitalized Computer Software For Internal Use And Unpaid Property Equipment Reflected In Account Payable And Accrued Expenses) (Details) - USD ($)
$ in Thousands

12 Months Ended

Dec. 31, 2023

Dec. 31, 2022

Dec. 31, 2021

Property, Plant and Equipment [Line Items]

Depreciation and amortization expense

$ 100,994

$ 96,746

$ 92,376

Unpaid property and equipment, reflected in accounts payable and accrued liabilities at end of year

12,061

18,334