CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
CURRENT ASSETS:
Cash and cash equivalents	$ 294,186	$ 119,423
Accounts receivable, net	377,542	338,242
Inventories	224,281	183,095
Prepaid expenses and other current assets	98,330	69,496
Total current assets	994,339	710,256
NONCURRENT ASSETS:
Property and equipment, net	108,321	111,535
Operating lease right-of-use asset	72,424	74,777
Intangible assets, net	22,371	21,433
Referral sources, net	341,744	344,587
Goodwill	1,533,424	1,477,564
Deferred income taxes	0	27,033
Other noncurrent assets	40,313	23,733
Total noncurrent assets	2,118,597	2,080,662
TOTAL ASSETS	3,112,936	2,790,918
CURRENT LIABILITIES:
Accounts payable	378,763	279,246
Accrued compensation and employee benefits	76,906	83,503
Accrued expenses and other current liabilities	84,302	71,857
Current portion of operating lease liability	19,380	19,089
Current portion of long-term debt	6,000	6,000
Total current liabilities	565,351	459,695
NONCURRENT LIABILITIES:
Long-term debt, net of discount, deferred financing costs and current portion	1,058,204	1,059,900
Operating lease liability, net of current portion	71,441	74,492
Deferred income taxes	22,154	0
Other noncurrent liabilities	9,683	20,945
Total noncurrent liabilities	1,161,482	1,155,337
Total liabilities	1,726,833	1,615,032
STOCKHOLDERS’ EQUITY:
Preferred stock; $0.0001 par value; 12,500,000 shares authorized, no shares outstanding as of December 31, 2022 and 2021, respectively.	0	0
Common stock; $0.0001 par value: 250,000,000 shares authorized, 182,341,420 shares issued and 181,957,698 shares outstanding as of December 31, 2022; 180,309,637 shares issued and 179,925,915 shares outstanding as of December 31, 2021.	18	18
Treasury stock; 383,722 shares outstanding, at cost, as of December 31, 2022 and 2021, respectively.	(2,403)	(2,403)
Paid-in capital	1,176,906	1,138,855
Retained earnings	190,423	39,867
Accumulated other comprehensive income (loss)	21,159	(451)
Total stockholders’ equity	1,386,103	1,175,886
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$ 3,112,936	$ 2,790,918