Condensed Consolidated Balance Sheets - USD ($)	Jan. 31, 2021	Jul. 31, 2020
Current assets:
Cash and cash equivalents	$ 30,934,000	$ 47,878,000
Accounts receivable, net	149,928,000	126,816,000
Inventories, net	81,630,000	82,302,000
Prepaid expenses and other current assets	19,417,000	20,101,000
Total current assets	281,909,000	277,097,000
Property, plant and equipment, net	26,136,000	27,037,000
Operating lease, right-of-use assets	51,020,000	30,033,000
Goodwill	333,793,000	330,519,000
Intangibles with finite lives, net	247,758,000	258,019,000
Deferred financing costs, net	2,023,000	2,391,000
Other assets, net	3,956,000	4,551,000
Total assets	946,595,000	929,647,000
Current liabilities:
Accounts payable	38,994,000	23,423,000
Accrued expenses and other current liabilities	79,185,000	85,161,000
Operating lease liabilities, current	8,771,000	8,247,000
Dividends payable	2,495,000	2,468,000
Contract liabilities	49,990,000	40,250,000
Interest payable	265,000	163,000
Total current liabilities	179,700,000	159,712,000
Non-current portion of long-term debt, net	208,000,000	149,500,000
Operating lease liabilities, non-current	45,259,000	24,109,000
Income taxes payable	2,286,000	1,963,000
Deferred tax liability, net	16,442,000	17,637,000
Long-term contract liabilities	15,066,000	9,596,000
Other liabilities	16,558,000	17,831,000
Total liabilities	483,311,000	380,348,000
Commitments and contingencies (See Note 18)
Stockholders’ equity:
Preferred stock, par value $0.10 per share; shares authorized and unissued 2,000,000	0	0
Common stock, par value $0.10 per share; authorized 100,000,000 shares; issued 40,059,977 shares and 39,924,439 shares at January 31, 2021 and July 31, 2020, respectively	4,006,000	3,992,000
Additional paid-in capital	570,891,000	569,891,000
Retained earnings	330,236,000	417,265,000
Stockholders' equity before treasury stock	905,133,000	991,148,000
Treasury stock, at cost (15,033,317 shares at January 31, 2021 and July 31, 2020)	(441,849,000)	(441,849,000)
Total stockholders’ equity	463,284,000	549,299,000
Total liabilities and stockholders’ equity	$ 946,595,000	$ 929,647,000
Preferred stock, par value (in dollars per share)	$ 0.10	$ 0.10
Preferred stock, shares authorized (in shares)	2,000,000	2,000,000