REVENUE RECOGNITION (Details) $ in Thousands	12 Months Ended
Mar. 31, 2024 USD ($) segment	Mar. 31, 2023 USD ($)	Mar. 31, 2022 USD ($)
Disaggregation of Revenue [Line Items]
Number of business segments \| segment	3
Net revenues	$ 792,840	$ 757,904	$ 626,435
Change in Contract Liabilities [Roll Forward]
Balance at beginning of period	637
Revenue recognized	(607)
New contracts and revenue added to existing contracts	518
Balance at end of period	548	637
Contractor Solutions
Disaggregation of Revenue [Line Items]
Net revenues	528,641	506,634	413,207
Specialized Reliability Solutions
Disaggregation of Revenue [Line Items]
Net revenues	149,458	147,301	115,932
Engineered Building Solutions
Disaggregation of Revenue [Line Items]
Net revenues	$ 114,741	103,969	97,296
Build-to-order
Disaggregation of Revenue [Line Items]
Retainage, percentage of transaction price not collectible until overall construction project is complete	10.00%
Net revenues	$ 99,760	89,964	88,690
Build-to-order \| Contractor Solutions
Disaggregation of Revenue [Line Items]
Net revenues	0	0	0
Build-to-order \| Specialized Reliability Solutions
Disaggregation of Revenue [Line Items]
Net revenues	0	0	0
Build-to-order \| Engineered Building Solutions
Disaggregation of Revenue [Line Items]
Net revenues	$ 99,760	89,964	88,690
Installation Services \| Total Consolidated Revenue \| Product Concentration Risk
Disaggregation of Revenue [Line Items]
Percentage of total consolidated revenue	2.00%
Book-and-ship
Disaggregation of Revenue [Line Items]
Net revenues	$ 693,080	667,940	537,745
Book-and-ship \| Contractor Solutions
Disaggregation of Revenue [Line Items]
Net revenues	528,641	506,634	413,207
Book-and-ship \| Specialized Reliability Solutions
Disaggregation of Revenue [Line Items]
Net revenues	149,458	147,301	115,932
Book-and-ship \| Engineered Building Solutions
Disaggregation of Revenue [Line Items]
Net revenues	$ 14,981	$ 14,005	$ 8,606

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