Business Segments - Additional Information (Detail) |
12 Months Ended |
---|---|
Mar. 31, 2018
Location
Facility
Terminal
Plant
Sector
Segment
JointVentures
| |
Segment Reporting Information [Line Items] | |
Number of sectors | Sector | 3 |
Number of reportable business segments | Segment | 5 |
Cement plant locations | Location | 7 |
Slag grinding facility | Facility | 1 |
Cement distribution terminals | Terminal | 19 |
Gypsum wallboard plants | Plant | 5 |
Readymix concrete batch plants | Plant | 17 |
Aggregates processing plants | Plant | 4 |
Number of frac sand processing facilities | Facility | 2 |
Number of frac sand drying facilities | Facility | 4 |
Number of frac sand trans-load locations | Location | 5 |
Proportionate consolidation of share of Joint Venture's revenues and operating earnings | 50.00% |
Cement [Member] | |
Segment Reporting Information [Line Items] | |
Number of Joint Venture | JointVentures | 1 |