CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
CURRENT ASSETS:
Cash and cash equivalents	$ 204,046	$ 119,423
Accounts receivable, net	362,772	338,242
Inventories	231,766	183,095
Prepaid expenses and other current assets	78,555	69,496
Total current assets	877,139	710,256
NONCURRENT ASSETS:
Property and equipment, net	105,210	111,535
Operating lease right-of-use asset	73,461	74,777
Intangible assets, net	23,161	21,433
Referral sources	352,368	344,587
Goodwill	1,512,246	1,477,564
Deferred income taxes	2,256	27,033
Other noncurrent assets	40,071	23,733
Total noncurrent assets	2,108,773	2,080,662
TOTAL ASSETS	2,985,912	2,790,918
CURRENT LIABILITIES:
Accounts payable	380,516	279,246
Accrued compensation and employee benefits	58,307	83,503
Accrued expenses and other current liabilities	91,284	71,857
Current portion of operating lease liability	19,201	19,089
Current portion of long-term debt	6,000	6,000
Total current liabilities	555,308	459,695
NONCURRENT LIABILITIES:
Long-term debt, net of discount, deferred financing costs and current portion	1,059,017	1,059,900
Operating lease liability, net of current portion	73,148	74,492
Other noncurrent liabilities	13,445	20,945
Total noncurrent liabilities	1,145,610	1,155,337
Total liabilities	1,700,918	1,615,032
STOCKHOLDERS’ EQUITY:
Preferred stock; $0.0001 par value; 12,500,000 shares authorized, no shares outstanding as of June 30, 2022 and December 31, 2021, respectively	0	0
Common stock; $0.0001 par value: 250,000,000 shares authorized, 182,213,292 shares issued and 181,829,570 shares outstanding as of June 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 June 30, 2022 and December 31, 2021, respectively	(2,403)	(2,403)
Paid-in capital	1,168,052	1,138,855
Retained earnings	104,071	39,867
Accumulated other comprehensive income (loss)	15,256	(451)
Total stockholders’ equity	1,284,994	1,175,886
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$ 2,985,912	$ 2,790,918