CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Current Assets:
Cash and cash equivalents	$ 145,203	$ 383,928
Accounts receivable, net	376,760	331,429
Inventories	258,484	209,873
Other current assets	157,590	137,508
Total current assets	938,037	1,062,738
Long-Term Assets:
Property and equipment, net	573,385	555,167
Operating lease right-of-use assets	106,962	91,171
Goodwill	355,240	243,347
Intangible assets, net	94,976	52,543
Other long-term assets	317,144	289,595
Total long-term assets	1,447,707	1,231,823
TOTAL ASSETS	2,385,744	2,294,561
Current Liabilities:
Accounts payable	86,684	74,558
Accrued liabilities	431,047	415,648
Current portion of long-term debt	74,990	49,988
Current portion of deferred revenue	41,128	42,567
Total current liabilities	633,849	582,761
Long-Term Liabilities:
Deferred income tax liabilities	15,306	11,707
Long-term debt, net of current portion	778,025	858,492
Long-term deferred revenue, net of current portion	40,391	46,163
Long-term operating lease liabilities	89,720	77,039
Other long-term liabilities	72,993	85,604
Total long-term liabilities	996,435	1,079,005
Total liabilities	1,630,284	1,661,766
Commitments and Contingencies (Note 16)
Stockholders’ Equity:
Common stock, $0.10 par value: Authorized: 120,000 shares; Issued: 106,806 shares in 2021 and 106,457 shares in 2020; Outstanding: 84,880 shares in 2021 and 85,449 shares in 2020	10,681	10,646
Additional paid-in capital	1,358,813	1,294,849
Deferred stock units: Outstanding: 90 units in 2021 and 87 units in 2020	5,669	4,503
Retained earnings	2,757,669	2,175,595
Accumulated other comprehensive loss	(52,057)	(53,615)
Treasury stock, at cost: 21,926 shares in 2021 and 21,008 shares in 2020	(3,326,021)	(2,799,890)
Total IDEXX Laboratories, Inc. stockholders’ equity	754,754	632,088
Noncontrolling interest	706	707
Total stockholders’ equity	755,460	632,795
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$ 2,385,744	$ 2,294,561