Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Current Assets:
Cash and cash equivalents	$ 159,229	$ 187,675
Marketable securities		284,255
Accounts receivable, net of reserves of $4,808 in 2018 and $4,576 in 2017	259,865	234,597
Inventories	179,039	164,318
Other current assets	103,574	101,140
Total current assets	701,707	971,985
Long-Term Assets:
Property and equipment, net	384,246	379,096
Goodwill	201,022	199,873
Intangible assets, net	41,893	43,846
Other long-term assets	140,624	118,616
Total long-term assets	767,785	741,431
TOTAL ASSETS	1,469,492	1,713,416
Current Liabilities:
Accounts payable	70,409	66,968
Accrued liabilities	210,384	253,418
Line of credit	407,500	655,000
Current portion of deferred revenue	40,545	29,181
Total current liabilities	728,838	1,004,567
Long-Term Liabilities:
Deferred income tax liabilities	27,529	25,353
Long-term debt	609,005	606,075
Long-term deferred revenue, net of current portion	68,529	35,545
Other long-term liabilities	84,573	95,718
Total long-term liabilities	789,636	762,691
Total liabilities	1,518,474	1,767,258
Commitments and Contingencies (Note 14)
Stockholders’ Deficit:
Common stock, $0.10 par value: Authorized: 120,000 shares; Issued: 104,676 shares in 2018 and 104,275 shares in 2017; Outstanding: 86,997 shares in 2018 and 87,104 shares in 2017	10,468	10,428
Additional paid-in capital	1,094,159	1,073,931
Deferred stock units: Outstanding: 217 units in 2018 and 229 units in 2017	5,772	5,988
Retained earnings	880,348	803,545
Accumulated other comprehensive loss	(34,206)	(36,470)
Treasury stock, at cost: 17,679 shares in 2018 and 17,171 shares in 2017	(2,005,813)	(1,911,528)
Total IDEXX Laboratories, Inc. stockholders’ deficit	(49,272)	(54,106)
Noncontrolling interest	290	264
Total stockholders’ deficit	(48,982)	(53,842)
TOTAL LIABILITIES AND STOCKHOLDERS’ DEFICIT	$ 1,469,492	$ 1,713,416

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

Name:	us-gaap_AccountsPayableCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.