Fair Value Measurement - Summary of Fair Value of Assets and Liabilities Measured on Recurring Basis (Details) - Fair Value, Recurring - USD ($) $ in Thousands	Sep. 30, 2020	Jun. 30, 2020
Assets
Cash equivalents	$ 7,615	$ 20,075
Short-term investments	136,171	123,974
Funds held for customers	1,101,207	1,062,493
Total assets measured at fair value	1,244,993	1,206,542
Municipal Bonds
Assets
Funds held for customers	6,064
Money Market Funds
Assets
Cash equivalents	7,615	20,075
Level 1
Assets
Cash equivalents	7,615	20,075
Short-term investments	45,054	28,368
Funds held for customers	408,497	406,302
Total assets measured at fair value	461,166	454,745
Level 1 \| Money Market Funds
Assets
Cash equivalents	7,615	20,075
Level 2
Assets
Short-term investments	91,117	95,606
Funds held for customers	692,710	656,191
Total assets measured at fair value	783,827	751,797
Level 2 \| Municipal Bonds
Assets
Funds held for customers	6,064
Certificates of Deposit
Assets
Funds held for customers	163,819	85,953
Certificates of Deposit \| Level 2
Assets
Funds held for customers	163,819	85,953
U.S. Treasury Securities
Assets
Short-term investments	45,054	28,368
Funds held for customers	20,787	48,952
U.S. Treasury Securities \| Level 1
Assets
Short-term investments	45,054	28,368
Funds held for customers	20,787	48,952
Corporate Bonds
Assets
Short-term investments	69,573	71,131
Funds held for customers	489,165	493,879
Corporate Bonds \| Level 2
Assets
Short-term investments	69,573	71,131
Funds held for customers	489,165	493,879
Asset-Backed Securities
Assets
Short-term investments	21,544	24,475
Asset-Backed Securities \| Level 2
Assets
Short-term investments	21,544	24,475
Restricted Cash Equivalents
Assets
Funds held for customers	421,372	433,709
Restricted Cash Equivalents \| Level 1
Assets
Funds held for customers	387,710	357,350
Restricted Cash Equivalents \| Level 2
Assets
Funds held for customers	$ 33,662	$ 76,359

Funds held for customers debt securities fair value disclosure.

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- Definition

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
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- Definition

Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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- Definition

Fair value portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
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