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Goodwill - Goodwill Activity (Details) - USD ($) $ in Thousands | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2021 | Dec. 31, 2020
Goodwill [Roll Forward] |  |
Goodwill, beginning of period | $ 1,171,219 | $ 235,177
Acquisition of Mobile Mini |  | 928,974
Changes to Mobile Mini purchase accounting | 8,161 |
Effects of movements in foreign exchange rates | 1,357 | 7,068
Goodwill, end of period | 1,180,737 | 1,171,219
NA Modular |  |
Goodwill [Roll Forward] |  |
Goodwill, beginning of period | 235,828 | 235,177
Acquisition of Mobile Mini |  | 0
Changes to Mobile Mini purchase accounting | 285,000 |
Effects of movements in foreign exchange rates | 842 | 651
Goodwill, end of period | 521,670 | 235,828
NA Storage |  |
Goodwill [Roll Forward] |  |
Goodwill, beginning of period | 726,529 | 0
Acquisition of Mobile Mini |  | 726,529
Changes to Mobile Mini purchase accounting | (233,666) |
Effects of movements in foreign exchange rates | (293) | 0
Goodwill, end of period | 492,570 | 726,529
UK Storage |  |
Goodwill [Roll Forward] |  |
Goodwill, beginning of period | 65,600 | 0
Acquisition of Mobile Mini |  | 59,183
Changes to Mobile Mini purchase accounting | 0 |
Effects of movements in foreign exchange rates | 808 | 6,417
Goodwill, end of period | 66,408 | 65,600
Tank and Pump |  |
Goodwill [Roll Forward] |  |
Goodwill, beginning of period | 143,262 | 0
Acquisition of Mobile Mini |  | 143,262
Changes to Mobile Mini purchase accounting | (43,173) |
Effects of movements in foreign exchange rates | 0 | 0
Goodwill, end of period | $ 100,089 | $ 143,262

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