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Summary of Significant Accounting Policies - Additional Information (Details) | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2021 USD ($) Customer shares | Dec. 31, 2020 USD ($) shares | Dec. 31, 2019 USD ($) shares | Sep. 30, 2021 USD ($) | Dec. 31, 2018 USD ($)
Significant Accounting Policies [Line Items] |  |  |  |  |
Contributions to ESOP | shares | 1,631,477 | 1,522,381 | 1,345,198 |  |
Repurchase of shares of common stock from ESOP | shares |  |  | 191,331 |  |
Redemption value of ESOP participants interest |  |  | $ 6,300,000 |  |
Adoption of ASC 606 | $ 1,937,112,000 | $ 1,861,417,000 | 1,660,756,000 |  | $ (921,076,000)
Accounting Standards Update 2018-09 |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Change in accounting principle, accounting standards update, adopted | true |  |  |  |
Change in accounting principle, accounting standards update, immaterial effect | true |  |  |  |
ASU 2016-02 |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Change in accounting principle, accounting standards update, adopted | true |  |  |  |
Change in accounting principle, accounting standards update, adoption date | Jan. 01, 2019 |  |  |  |
Change in accounting principle, accounting standards update, immaterial effect | false |  |  |  |
ASU 2016-02 | Revision of Prior Period, Accounting Standards Update, Adjustment |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Adoption of ASC 606 |  |  |  |  | $ 52,608,000
ASU 2016-02 | Revision of Prior Period, Accounting Standards Update, Adjustment | Net Deferred Tax Asset |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Adoption of ASC 606 | $ 52,600,000 |  |  |  |
ASU 2016-02 | Revision of Prior Period, Accounting Standards Update, Adjustment | Deferred Tax Asset |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Adoption of ASC 606 | $ 700,000 |  |  |  |
ASC 2016-13 |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Change in accounting principle, accounting standards update, adopted | true |  |  |  |
Change in accounting principle, accounting standards update, adoption date | Dec. 15, 2019 |  |  |  |
Change in accounting principle, accounting standards update, immaterial effect | true |  |  |  |
ASC 2016-13 | Revision of Prior Period, Accounting Standards Update, Adjustment |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Adoption of ASC 606 |  |  | $ (1,000,000) |  |
Accounting Standards Update 2018-02 |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Change in accounting principle, accounting standards update, adopted | true |  |  |  |
Change in accounting principle, accounting standards update, adoption date | Jan. 01, 2019 |  |  |  |
Change in accounting principle, accounting standards update, immaterial effect | true |  |  |  |
Accounting Standards Update 2019-12 |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Change in accounting principle, accounting standards update, adopted | true |  |  |  |
Change in accounting principle, accounting standards update, adoption date | Jan. 01, 2021 |  |  |  |
Change in accounting principle, accounting standards update, immaterial effect | true |  |  |  |
Accounting Standards Update 2020-06 |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Change in accounting principle, accounting standards update, adopted | true |  |  |  |
Change in accounting principle, accounting standards update, adoption date | Jan. 01, 2021 |  |  |  |
Change in accounting principle, accounting standards update, immaterial effect | false |  |  |  |
Accounting Standards Update 2020-06 | Revision of Prior Period, Accounting Standards Update, Adjustment |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Adoption of ASC 606 |  | $ (37,220,000) |  |  |
Concentration of Customer Risk | United States |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Number of customers representing more than 10% of revenue | Customer | 0 |  |  |  |
Concentration of Credit Risk | United States |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Number of customers representing more than 10% of accounts receivable | Customer | 0 |  |  |  |
Revenue Benchmark | Concentration of Customer Risk | United States |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Concentration risk percentage | 52.00% | 49.00% | 48.00% |  |
Accounts Receivable | Concentration of Credit Risk | United States |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Concentration risk percentage | 17.00% | 19.00% |  |  |
Maximum |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Number of authorized shares of common stock value |  |  |  | $ 100,000,000 |
Performance obligations payment terms from date of invoice | 120 days |  |  |  |
Intangible assets useful lives of underlying assets | 16 years |  |  |  |
Minimum |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Performance obligations payment terms from date of invoice | 30 days |  |  |  |
Intangible assets useful lives of underlying assets | 1 year |  |  |  |

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