CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
CURRENT ASSETS:
Cash and cash equivalents	$ 297,776	$ 294,186
Accounts receivable, net	395,209	377,542
Inventories	249,643	224,281
Prepaid expenses and other current assets	86,908	98,330
Total current assets	1,029,536	994,339
NONCURRENT ASSETS:
Property and equipment, net	105,571	108,321
Operating lease right-of-use asset	70,077	72,424
Intangible assets, net	21,677	22,371
Referral sources, net	334,001	341,744
Goodwill	1,533,569	1,533,424
Other noncurrent assets	35,971	40,313
Total noncurrent assets	2,100,866	2,118,597
TOTAL ASSETS	3,130,402	3,112,936
CURRENT LIABILITIES:
Accounts payable	448,890	378,763
Accrued compensation and employee benefits	48,550	76,906
Accrued expenses and other current liabilities	96,279	84,302
Current portion of operating lease liability	18,847	19,380
Current portion of long-term debt	6,000	6,000
Total current liabilities	618,566	565,351
NONCURRENT LIABILITIES:
Long-term debt, net of discount, deferred financing costs and current portion	1,057,787	1,058,204
Operating lease liability, net of current portion	69,961	71,441
Deferred income taxes	30,780	22,154
Other noncurrent liabilities	3,089	9,683
Total noncurrent liabilities	1,161,617	1,161,482
Total liabilities	1,780,183	1,726,833
STOCKHOLDERS’ EQUITY:
Preferred stock; $0.0001 par value; 12,500,000 shares authorized, no shares outstanding as of March 31, 2023 and December 31, 2022, respectively	0	0
Common stock; $0.0001 par value: 250,000,000 shares authorized, 182,615,601 shares issued and 179,756,714 shares outstanding as of March 31, 2023; 182,341,420 shares issued and 181,957,698 shares outstanding as of December 31, 2022	18	18
Treasury stock; 2,858,887 and 383,722 shares outstanding, at cost, as of March 31, 2023 and December 31, 2022, respectively	(78,138)	(2,403)
Paid-in capital	1,180,992	1,176,906
Retained earnings	229,631	190,423
Accumulated other comprehensive income	17,716	21,159
Total stockholders’ equity	1,350,219	1,386,103
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$ 3,130,402	$ 3,112,936