XML 113 R55.htm IDEA: XBRL DOCUMENT
v3.20.1

Subsequent Event - Additional Information (Detail) - USD ($) $ in Thousands |  | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
Apr. 17, 2020 | Mar. 31, 2020 | Dec. 31, 2019 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2018 | Sep. 30, 2018 | Jun. 30, 2018 | Mar. 31, 2020 | Mar. 31, 2019 | Mar. 31, 2018
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Assets |  | $ 2,961,020 |  |  |  | $ 2,169,163 |  |  |  | $ 2,961,020 | $ 2,169,163 | $ 2,368,003
Liabilities |  | 1,993,177 |  |  |  | 959,676 |  |  |  | 1,993,177 | 959,676 |
Revenue |  | 315,442 | $ 350,249 | $ 414,526 | $ 370,597 | $ 284,701 | $ 333,285 | $ 381,499 | $ 393,756 | 1,450,814 | 1,393,241 | 1,386,520
Mathews Readymix LLC and Western Aggregates LLC [Member] |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Assets |  | 43,700 |  |  |  |  |  |  |  | 43,700 |  |
Liabilities |  | $ 2,300 |  |  |  |  |  |  |  | 2,300 |  |
Revenue |  |  |  |  |  |  |  |  |  | $ 32,300 | $ 27,800 | $ 27,700
Mathews Readymix LLC and Western Aggregates LLC [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Purcahse price of acquisition | $ 93,500 |  |  |  |  |  |  |  |  |  |  |

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