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Share-Based and Other Compensation - Annual Time-Based RSU Grants (Details) $ / shares in Units, $ in Millions |  |  |  |  |  | 1 Months Ended | 2 Months Ended |  |
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Jan. 31, 2020 property $ / shares | Feb. 01, 2019 USD ($) property $ / shares | Dec. 27, 2018 USD ($) $ / shares | Feb. 14, 2018 $ / shares shares | Jan. 29, 2018 $ / shares shares | Jan. 31, 2020 USD ($) $ / shares | Feb. 28, 2018 USD ($) property participant | Dec. 31, 2020 shares | Dec. 31, 2018
Time-Based Restricted Stock Units (RSUs), 2020 Time-Based RSU Grant [Member] |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Number of equal annual vesting installments | property | 3 |  |  |  |  |  |  |  |
Fair value RSUs granted | $ |  |  |  |  |  | $ 9.0 |  |  |
Fair value per share (in dollars per share) | $ / shares | $ 82.57 |  |  |  |  | $ 82.57 |  |  |
Time-Based Restricted Stock Units (RSUs), 2019 Time-Based RSU Grant [Member] |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Number of equal annual vesting installments | property |  | 3 |  |  |  |  |  |  |
Fair value RSUs granted | $ |  | $ 10.1 |  |  |  |  |  |  |
Fair value per share (in dollars per share) | $ / shares |  | $ 69.89 |  |  |  |  |  |  |
December 2018 Time-Based RSU Grant [Member] |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Vesting criteria, one (percent) |  |  |  |  |  |  |  |  | 50.00%
Vesting criteria, two (percent) |  |  |  |  |  |  |  |  | 50.00%
Fair value RSUs granted | $ |  |  | $ 18.5 |  |  |  |  |  |
Fair value per share (in dollars per share) | $ / shares |  |  | $ 62.00 |  |  |  |  |  |
Time-Based Restricted Stock Units (RSUs), 2018 Time-Based RSU Grant [Member] |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Number of equal annual vesting installments | property |  |  |  |  |  |  | 3 |  |
Number of participants with shorter service period | participant |  |  |  |  |  |  | 1 |  |
Fair value RSUs granted | $ |  |  |  |  |  |  | $ 8.4 |  |
Fair value per share (in dollars per share) | $ / shares |  |  |  | $ 66.46 | $ 70.37 |  |  |  |
RSUs granted (in units) | shares |  |  |  | 67,818 | 56,015 |  |  |  |
Time-Based Restricted Stock Units (RSUs) with Accelerated Vesting due to Separation of Employment [Member] |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
RSUs (in shares) | shares |  |  |  |  |  |  |  | 54,735 |

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