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Employee Benefit Plans - Additional Information (Details) - USD ($) |  | 12 Months Ended |
--- | --- | --- | ---
Dec. 31, 2019 | Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2019 | Nov. 06, 2019
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |
Defined Contribution Plan, Employer Matching Contribution, Percent of Match | 100.00% | 100.00% |  |  |
Contributes percentage | 4.00% | 6.00% |  |  |
Matching and discretionary contributions expense |  | $ 14,200,000 | $ 11,200,000 | $ 10,600,000 |
Authorized amount |  | $ 25,000 |  |  |
Number of ESPP issuable |  |  |  |  | 500,000
Market price |  | 90.00% |  |  |
Brokerage commissions and administrative fees, percentage |  | 10.00% |  |  |
Total share issued |  | 8,857 | 705 | 8,895 |
Nonqualified Deferred Compensation Plan [Member] |  |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |
Contributes percentage |  | 6.00% |  |  |
Deferred Compensation Plan, Maximum Percentage of Deferment of Participant's Salary |  | 50.00% |  |  |
Deferred Compensation Plan, Maximum percentage of participant's Bonus or Board Fee |  | 100.00% |  |  |
Accrued Liabilities | Nonqualified Deferred Compensation Plan [Member] |  |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |
Deferred Compensation Liability, Current |  | $ 20,300,000 | $ 17,600,000 |  |
Investment in Rabbi Trust [Member] | Nonqualified Deferred Compensation Plan [Member] |  |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |
Deferred Compensation Plan Assets, Fair Value Disclosure |  | $ 20,600,000 | $ 9,000,000.0 |  |

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- Definition Percentage of deferment of participant's salary under the deferred compensation plan. + References No definition available. + Details
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- Definition Employee Purchase Plan Purchase Price Percentage of Fair Market Value. + References No definition available. + Details
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- Definition Aggregate carrying value as of the balance sheet date of the liabilities for all deferred compensation arrangements payable within one year (or the operating cycle, if longer). Represents currently earned compensation under compensation arrangements that is not actually paid until a later date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 710 -SubTopic 10 -Section 25 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=6409733&loc=d3e19512-108361 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 710 -SubTopic 10 -Section 30 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6409875&loc=d3e20028-108363 + Details
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