Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2019	Jun. 30, 2018
Current assets:
Cash and cash equivalents	$ 257,932	$ 66,521
Accounts receivable, net of allowance for doubtful accounts of $1,228 and $359 at June 30, 2019 and 2018, respectively	118,832	104,040
Unbilled receivables and cost in excess of billings	57,387	39,774
Inventory	137,112	108,585
Prepaid income taxes	90	3,761
Prepaid expenses and other current assets	10,819	9,062
Total current assets	582,172	331,743
Property and equipment, net	60,001	50,980
Goodwill	562,146	497,442
Acquired intangible assets, net	206,124	177,904
Other non-current assets	6,534	6,411
Total assets	1,416,977	1,064,480
Current liabilities:
Accounts payable	39,030	21,323
Accrued expenses	18,897	16,386
Accrued compensation	28,814	21,375
Deferred revenues and customer advances	11,291	12,596
Total current liabilities	98,032	71,680
Deferred income taxes	17,814	13,635
Income taxes payable	1,273	998
Secured Long-term Debt, Noncurrent	0	195,000
Other non-current liabilities	15,119	11,276
Total liabilities	132,238	292,589
Commitments and contingencies
Shareholders' equity:
Preferred stock, $0.01 par value; 1,000,000 shares authorized; no shares issued or outstanding	0	0
Common stock, $0.01 par value; 85,000,000 shares authorized; 54,247,532 and 46,924,238 shares issued and outstanding at June 30, 2019 and 2018, respectively	542	469
Additional paid-in capital	1,058,745	590,163
Retained earnings	226,743	179,968
Accumulated other comprehensive income	(1,291)	1,291
Total shareholders' equity	1,284,739	771,891
Total liabilities and shareholders' equity	$ 1,416,977	$ 1,064,480