CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020
Current assets:
Cash and cash equivalents	$ 23,984		$ 30,312
Short-term investments	37,910		149,057
Accounts receivable, net	23,858		16,602
Contract assets	4,503		4,080
Prepaid expenses	2,409		1,920
Other current assets	1,849		2,085
Total current assets	94,513		204,056
Long-term investments	31,493		48,051
Property and equipment, net	3,938		3,671
Right-of-use assets	6,098		7,056
Intangible assets, net	96,364		28,734
Goodwill	135,519		63,096
Deferred income tax assets	11,003		10,511
Convertible senior notes hedge	0		48,208
Other non-current assets	5,292		6,310
Total assets	384,220		419,693
Current liabilities:
Accounts payable	6,688		2,507
Accrued payroll and related taxes	8,271		11,776
Deferred revenue, current portion	9,700		10,381
Lease liabilities, current portion	1,944		1,943
Acquisition-related contingent consideration	10,790		11,050
Other current liabilities	3,469		1,552
Total current liabilities	40,862		39,209
Convertible senior notes	124,370		120,918
Embedded conversion derivative	0		48,208
Deferred revenue, non-current portion	1,053		955
Lease liabilities, non-current portion	5,485		6,588
Deferred income tax liabilities	20,730		4,117
Other non-current liabilities	6,250		6,868
Total liabilities	198,750		226,863
Stockholders’ equity:
Preferred stock, $0.001 par value, 1,000,000 shares authorized, none issued and outstanding	0		0
Common stock, $0.001 par value, 120,000,000 and 60,000,000 shares authorized, 44,344,361 and 44,168,745 issued and outstanding, as of March 31, 2022 and September 30, 2021, respectively	44		44
Additional paid-in capital	207,491		199,935
Accumulated other comprehensive loss	(5,170)		(943)
Accumulated deficit	(16,895)		(6,066)
Treasury stock, at cost, no shares and 7,773 shares as of March 31, 2022 and September 30, 2021, respectively	0		(140)
Total stockholders’ equity	185,470	$ 187,429	192,830	$ 167,729	$ 141,753	$ 132,243
Total liabilities and stockholders’ equity	$ 384,220		$ 419,693