Balance Sheet Information - Allowance for Credit Losses for Accounts Receivable, Capitalized Internal-Use Software and Property, Plant and Equipment (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Jun. 30, 2021
Activity in the allowance for credit losses
Balance at the beginning of the period	$ 800
Charged to expense	38	$ 56
Write-offs	(44)
Balance at the end of the period	794
Capitalized internal-use software and accumulated amortization
Capitalized internal-use software	160,751		$ 150,922
Accumulated amortization	(112,032)		(105,904)
Capitalized internal-use software, net	48,719		45,018
Property and equipment, net
Property and equipment, gross	128,783		122,589
Accumulated depreciation	(66,518)		(62,754)
Property and equipment, net	62,265		59,835
Depreciation expense	3,842	4,005
Changes in goodwill
Balance at the beginning of period	33,650
Additions attributable to acquisition	34,372
Balance at end of period	68,022
Cost of revenues
Capitalized internal-use software and accumulated amortization
Amortization of capitalized internal-use software	6,128	$ 5,386
Office equipment
Property and equipment, net
Property and equipment, gross	5,327		5,211
Computer equipment
Property and equipment, net
Property and equipment, gross	50,055		45,420
Furniture and fixtures
Property and equipment, net
Property and equipment, gross	13,350		13,104
Software
Property and equipment, net
Property and equipment, gross	7,091		6,641
Leasehold improvements
Property and equipment, net
Property and equipment, gross	47,191		46,814
Time clocks rented by clients
Property and equipment, net
Property and equipment, gross	$ 5,769		$ 5,399