Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Apr. 30, 2018	Jul. 31, 2017
Current assets:
Cash and cash equivalents	$ 51,916	$ 36,584
Accounts receivable, net of allowance for doubtful accounts of $1,505 and $1,808	114,146	110,656
Inventories, net	113,109	98,724
Prepaid expenses and other current assets	17,097	11,407
Income taxes receivable	4,184	0
Total current assets	300,452	257,371
Property and equipment, net	100,759	88,338
Intangible assets, net	145,552	124,512
Goodwill	366,804	311,445
Other assets	8,404	4,707
Total assets	921,971	786,373
Current liabilities:
Accounts payable	36,628	27,469
Compensation payable	28,586	27,468
Accrued expenses	27,930	23,393
Deferred revenue	30,183	25,282
Income taxes payable	0	3,167
Total current liabilities	123,327	106,779
Long-term debt	169,000	126,000
Deferred income taxes	23,097	24,714
Other long-term liabilities	5,241	4,948
Total liabilities	320,665	262,441
Commitments and contingencies (Note 10)
Stockholders’ equity:
Preferred Stock, par value $1.00 per share; authorized 1,000,000 shares; none issued	0	0
Common Stock, par value $0.10 per share. Authorized 75,000,000 shares; issued 46,239,890 shares and outstanding 41,709,335 shares as of April 30, 2018; issued 46,194,370 shares and outstanding 41,728,934 shares as of July 31, 2017	4,046	4,619
Additional paid-in capital	183,551	174,602
Retained earnings	478,197	407,590
Accumulated other comprehensive income (loss)	(5,292)	(9,900)
Treasury Stock, at cost; 4,530,555 shares as of April 30, 2018; 4,465,440 shares as of July 31, 2017	(59,196)	(52,979)
Total stockholders’ equity	601,306	523,932
Total liabilities and stockholders' equity	$ 921,971	$ 786,373

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).

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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.