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Share-Based Payments - Summary of Share-Based Compensation Expense (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Share-based compensation related to Formation Transaction and special equity awards | $ 42,162 | $ 36,030 | $ 29,251
Allocated Share-based Compensation Expense, Before Capitalization | 67,799 | 56,016 | 34,160
Less amount capitalized | (2,526) | (3,341) | (467)
Share-based compensation expense | 65,273 | 52,675 | 33,693
Total unrecognized compensation expense | $ 77,400 |  |
Compensation expense recognition period (in years) | 2 years 2 months 12 days |  |
Defined Contribution Plan, Cost | $ 2,000 | 1,800 | 3,600
Time-Based LTIP Units |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Allocated Share-based Compensation Expense | 11,386 | 10,095 | 2,211
Performance-Based LTIP Units |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Allocated Share-based Compensation Expense | $ 8,716 | 5,271 | 1,172
Compensation expense recognition period (in years) | 4 years |  |
Long-Term Incentive Partnership Units [Member] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Allocated Share-based Compensation Expense | $ 1,000 | 794 | 0
Other Equity Awards |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Allocated Share-based Compensation Expense | 4,535 | 3,826 | 1,526
Share-based compensation expense - other |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Allocated Share-based Compensation Expense | 25,637 | 19,986 | 4,909
Formation Awards |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Allocated Share-based Compensation Expense | 5,734 | 5,606 | 5,169
OP Units [Member] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Allocated Share-based Compensation Expense | 29,826 | 29,455 | 21,467
LTIP Units Related to Formation Transaction And Other [Member] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Allocated Share-based Compensation Expense | 456 | 277 | 2,615
Special Performance-Based LTIP Units [Member] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Allocated Share-based Compensation Expense | $ 2,843 | 323 | 0
Compensation expense recognition period (in years) | 5 years |  |
Special Time-Based LTIP Units [Member] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Allocated Share-based Compensation Expense | $ 3,303 | 369 | 0
Compensation expense recognition period (in years) | 5 years |  |
Share-based compensation related to Formation Transaction |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Share-based compensation related to Formation Transaction and special equity awards | $ 42,162 | $ 36,030 | $ 29,251

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- Definition Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5047-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 14.F) -URI http://asc.fasb.org/extlink&oid=115993241&loc=d3e301413-122809 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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