Equity-Based Compensation - Future Compensation Expense (Details) $ in Thousands	Jun. 30, 2020 USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
2020	$ 8,395
2021	16,443
2022	11,378
2023	4,471
2024	440
Total	41,127
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
2020	180
2021	109
2022	19
2023	0
2024	0
Total	308
SAR
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
2020	11
2021	154
2022	107
2023	22
2024	0
Total	294
REUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
2020	4,028
2021	7,897
2022	5,441
2023	2,353
2024	249
Total	19,968
BMP Equity Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
2020	4,176
2021	8,283
2022	5,811
2023	2,096
2024	191
Total	$ 20,557

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
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-Subparagraph (i)
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