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Balance Sheet Information - Allowance for Doubtful Accounts, Capitalized Internal-Use Software and Property, Plant and Equipment (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2020	Mar. 31, 2019	Jun. 30, 2019
Activity in the allowance for doubtful accounts
Balance at beginning of period			$ 473
Charged to expense			232	$ 220
Write-offs			(116)
Balance at end of period	$ 589		589
Capitalized internal-use software and accumulated amortization
Capitalized internal-use software	111,556		111,556		$ 90,991
Accumulated amortization	(77,489)		(77,489)		(63,505)
Capitalized internal-use software, net	34,067		34,067		27,486
Property and equipment, net
Property and equipment, gross	116,609		116,609		108,422
Accumulated depreciation	(47,911)		(47,911)		(38,366)
Property and equipment, net	68,698		68,698		70,056
Depreciation expense	4,082	$ 3,626	12,071	10,671
Cost of revenues
Capitalized internal-use software and accumulated amortization
Amortization of capitalized internal-use software	4,926	$ 4,224	14,073	$ 12,854
Office equipment
Property and equipment, net
Property and equipment, gross	4,491		4,491		4,406
Computer equipment
Property and equipment, net
Property and equipment, gross	42,478		42,478		36,798
Furniture and fixtures
Property and equipment, net
Property and equipment, gross	12,764		12,764		11,857
Software
Property and equipment, net
Property and equipment, gross	6,603		6,603		6,332
Leasehold improvements
Property and equipment, net
Property and equipment, gross	45,366		45,366		44,350
Time clocks rented by clients
Property and equipment, net
Property and equipment, gross	$ 4,907		$ 4,907		$ 4,679