CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Current Assets:
Cash and cash equivalents	$ 116,616	$ 123,794
Accounts receivable, net of reserves of $4,566 in 2019 and $4,702 in 2018	281,159	248,855
Inventories	189,468	173,303
Other current assets	110,403	108,220
Total current assets	697,646	654,172
Long-Term Assets:
Property and equipment, net	449,103	437,270
Operating lease right-of-use assets (Notes 2 and 6)	80,594	0
Goodwill	214,517	214,489
Intangible assets, net	39,499	41,825
Other long-term assets	199,609	189,593
Total long-term assets	983,322	883,177
TOTAL ASSETS	1,680,968	1,537,349
Current Liabilities:
Accounts payable	70,143	69,534
Accrued liabilities	229,127	260,683
Line of credit	346,998	398,937
Current portion of deferred revenue	43,351	41,290
Total current liabilities	689,619	770,444
Long-Term Liabilities:
Deferred income tax liabilities	32,931	29,267
Long-term debt	699,334	601,348
Long-term deferred revenue, net of current portion	55,695	60,697
Long-term operating lease liabilities (Notes 2 and 6)	68,955	0
Other long-term liabilities	82,564	84,826
Total long-term liabilities	939,479	776,138
Total liabilities	1,629,098	1,546,582
Commitments and Contingencies (Note 14)
Stockholders’ Equity (Deficit):
Common stock, $0.10 par value: Authorized: 120,000 shares; Issued: 105,345 shares in 2019 and 105,087 shares in 2018; Outstanding: 86,054 shares in 2019 and 86,100 shares in 2018	10,535	10,509
Additional paid-in capital	1,155,875	1,138,216
Deferred stock units: Outstanding: 162 units in 2019 and 2018	4,592	4,524
Retained earnings	1,270,609	1,167,928
Accumulated other comprehensive loss	(40,015)	(41,791)
Treasury stock, at cost: 19,290 shares in 2019 and 18,988 shares in 2018	(2,350,034)	(2,288,899)
Total IDEXX Laboratories, Inc. stockholders’ equity (deficit)	51,562	(9,513)
Noncontrolling interest	308	280
Total stockholders’ equity (deficit)	51,870	(9,233)
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY (DEFICIT)	$ 1,680,968	$ 1,537,349