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Acquisitions (Schedule of Acquired Intangible Assets) (Details) - USD ($) $ in Thousands |  | 3 Months Ended
--- | --- | ---
Dec. 11, 2020 | Mar. 31, 2021
Technology | Minimum |  |
Business Acquisition [Line Items] |  |
Weighted-Average Amortization Period | 5 years |
Technology | Maximum |  |
Business Acquisition [Line Items] |  |
Weighted-Average Amortization Period | 15 years |
Customer relationships | Minimum |  |
Business Acquisition [Line Items] |  |
Weighted-Average Amortization Period | 11 years |
Customer relationships | Maximum |  |
Business Acquisition [Line Items] |  |
Weighted-Average Amortization Period | 13 years |
Backlog |  |
Business Acquisition [Line Items] |  |
Weighted-Average Amortization Period | 1 year |
TerraSmart LLC |  |
Business Acquisition [Line Items] |  |
Fair Value |  | $ 64,150
TerraSmart LLC | Trademarks |  |
Business Acquisition [Line Items] |  |
Fair Value |  | 20,830
TerraSmart LLC | Technology |  |
Business Acquisition [Line Items] |  |
Fair Value |  | $ 1,940
Weighted-Average Amortization Period |  | 12 years
TerraSmart LLC | Customer relationships |  |
Business Acquisition [Line Items] |  |
Fair Value |  | $ 35,110
Weighted-Average Amortization Period |  | 12 years
TerraSmart LLC | Backlog |  |
Business Acquisition [Line Items] |  |
Fair Value |  | $ 6,270
Sunfig Corporation, Architectural Mailboxes, LLC, Delta Separations, LLC, and Thermo Energy Systems Inc. |  |
Business Acquisition [Line Items] |  |
Fair Value | $ 38,066 |
Sunfig Corporation, Architectural Mailboxes, LLC, Delta Separations, LLC, and Thermo Energy Systems Inc. | Trademarks |  |
Business Acquisition [Line Items] |  |
Fair Value | 8,100 |
Sunfig Corporation, Architectural Mailboxes, LLC, Delta Separations, LLC, and Thermo Energy Systems Inc. | Trademarks |  |
Business Acquisition [Line Items] |  |
Fair Value | $ 1,177 |
Weighted-Average Amortization Period | 3 years |
Sunfig Corporation, Architectural Mailboxes, LLC, Delta Separations, LLC, and Thermo Energy Systems Inc. | Technology |  |
Business Acquisition [Line Items] |  |
Fair Value | $ 8,345 |
Sunfig Corporation, Architectural Mailboxes, LLC, Delta Separations, LLC, and Thermo Energy Systems Inc. | Customer relationships |  |
Business Acquisition [Line Items] |  |
Fair Value | 18,480 |
Sunfig Corporation, Architectural Mailboxes, LLC, Delta Separations, LLC, and Thermo Energy Systems Inc. | Non-compete agreements |  |
Business Acquisition [Line Items] |  |
Fair Value | $ 1,036 |
Weighted-Average Amortization Period | 5 years |
Sunfig Corporation, Architectural Mailboxes, LLC, Delta Separations, LLC, and Thermo Energy Systems Inc. | Backlog |  |
Business Acquisition [Line Items] |  |
Fair Value | $ 928 |

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