CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
CURRENT ASSETS:
Cash and cash equivalents	$ 441,166	$ 294,186
Accounts receivable, net	396,501	377,542
Inventories	262,924	224,281
Prepaid expenses and other current assets	97,629	98,330
Total current assets	1,198,220	994,339
NONCURRENT ASSETS:
Property and equipment, net	106,777	108,321
Operating lease right-of-use asset	79,781	72,424
Intangible assets, net	21,645	22,371
Referral sources, net	330,948	341,744
Goodwill	1,540,567	1,533,424
Other noncurrent assets	42,960	40,313
Total noncurrent assets	2,122,678	2,118,597
TOTAL ASSETS	3,320,898	3,112,936
CURRENT LIABILITIES:
Accounts payable	467,666	378,763
Accrued compensation and employee benefits	73,013	76,906
Accrued expenses and other current liabilities	103,038	84,302
Current portion of operating lease liability	18,750	19,380
Current portion of long-term debt	6,000	6,000
Total current liabilities	668,467	565,351
NONCURRENT LIABILITIES:
Long-term debt, net of discount, deferred financing costs and current portion	1,057,391	1,058,204
Operating lease liability, net of current portion	81,137	71,441
Deferred income taxes	35,431	22,154
Other noncurrent liabilities	3,089	9,683
Total noncurrent liabilities	1,177,048	1,161,482
Total liabilities	1,845,515	1,726,833
STOCKHOLDERS’ EQUITY:
Preferred stock; $0.0001 par value; 12,500,000 shares authorized, no shares outstanding as of June 30, 2023 and December 31, 2022	0	0
Common stock; $0.0001 par value: 250,000,000 shares authorized, 182,729,537 shares issued and 179,870,650 shares outstanding as of June 30, 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 June 30, 2023 and December 31, 2022, respectively	(78,106)	(2,403)
Paid-in capital	1,188,430	1,176,906
Retained earnings	344,034	190,423
Accumulated other comprehensive income	21,007	21,159
Total stockholders’ equity	1,475,383	1,386,103
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$ 3,320,898	$ 3,112,936