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v3.19.3.a.u2

Profit Sharing Plan and Annual Cash Bonuses (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Deferred Compensation Arrangements [Abstract] |  |  |
Maximum percentage of compensation employee is allowed to contribute | 15.00% |  |
Matching contributions | $ 9,900,000 | $ 9,000,000.0 | $ 8,600,000
Bonus expense, cash | $ 0 | $ 0 | $ 0

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