CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
CURRENT ASSETS:
Cash and cash equivalents	$ 255,468	$ 119,423
Accounts receivable, net	364,187	338,242
Inventories	236,020	183,095
Prepaid expenses and other current assets	96,289	69,496
Total current assets	951,964	710,256
NONCURRENT ASSETS:
Property and equipment, net	96,312	111,535
Operating lease right-of-use asset	72,369	74,777
Intangible assets, net	23,066	21,433
Referral sources	349,487	344,587
Goodwill	1,533,043	1,477,564
Deferred income taxes	0	27,033
Other noncurrent assets	47,022	23,733
Total noncurrent assets	2,121,299	2,080,662
TOTAL ASSETS	3,073,263	2,790,918
CURRENT LIABILITIES:
Accounts payable	409,737	279,246
Accrued compensation and employee benefits	58,014	83,503
Accrued expenses and other current liabilities	93,803	71,857
Current portion of operating lease liability	19,246	19,089
Current portion of long-term debt	6,000	6,000
Total current liabilities	586,800	459,695
NONCURRENT LIABILITIES:
Long-term debt, net of discount, deferred financing costs and current portion	1,058,606	1,059,900
Operating lease liability, net of current portion	71,864	74,492
Deferred income taxes	10,598	0
Other noncurrent liabilities	8,060	20,945
Total noncurrent liabilities	1,149,128	1,155,337
Total liabilities	1,735,928	1,615,032
STOCKHOLDERS’ EQUITY:
Preferred stock; $0.0001 par value; 12,500,000 shares authorized, no shares outstanding as of September 30, 2022 and December 31, 2021, respectively	0	0
Common stock; $0.0001 par value: 250,000,000 shares authorized, 182,284,651 shares issued and 181,900,929 shares outstanding as of September 30, 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 September 30, 2022 and December 31, 2021, respectively	(2,403)	(2,403)
Paid-in capital	1,172,315	1,138,855
Retained earnings	142,894	39,867
Accumulated other comprehensive income (loss)	24,511	(451)
Total stockholders’ equity	1,337,335	1,175,886
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$ 3,073,263	$ 2,790,918