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Acquisitions (Schedule of Allocation of the Purchase Price Consideration of the Fair Value of Assets Acquired and Liabilities Assumed) (Details) - USD ($) $ in Thousands | Jun. 30, 2021 | Dec. 31, 2020 | Dec. 11, 2020
--- | --- | --- | ---
Business Acquisition [Line Items] |  |  |
Goodwill | $ 508,857 | $ 514,279 |
TerraSmart LLC |  |  |
Business Acquisition [Line Items] |  |  |
Cash |  | 1,491 |
Working capital |  | 7,148 |
Property, plant and equipment |  | 11,758 |
Acquired intangible assets |  | 64,150 |
Other assets |  | 1,854 |
Other liabilities |  | (1,640) |
Goodwill |  | 139,106 |
Fair value of purchase consideration |  | $ 223,867 |
Sunfig Corporation, Architectural Mailboxes, LLC, Delta Separations, LLC, and Thermo Energy Systems Inc. |  |  |
Business Acquisition [Line Items] |  |  |
Cash |  |  | $ 200
Working capital |  |  | (14,957)
Property, plant and equipment |  |  | 1,740
Acquired intangible assets |  |  | 38,296
Other current assets |  |  | 1,528
Other assets |  |  | 2,381
Other liabilities |  |  | (5,508)
Goodwill |  |  | 61,422
Fair value of purchase consideration |  |  | $ 85,102

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