Revenue Recognition - Contract Acquisition Costs (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2023 |
Dec. 31, 2022 |
Dec. 31, 2021 |
|
| Revenue Recognition | |||
| Balance at beginning of period | $ 230,146 | $ 298,112 | $ 338,893 |
| Additions | 71,931 | 86,740 | 116,922 |
| Amortization expense | (126,392) | (154,706) | (157,703) |
| Balance at end of period | $ 175,685 | $ 230,146 | $ 298,112 |