REVENUE RECOGNITION (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Disaggregation of Revenue [Line Items]
Net revenues	$ 161,266	$ 90,964
Change in Contract Liabilities [Roll Forward]
Balance at beginning of period	1,018
Revenue recognized during the period	(534)
New contracts and revenue added to existing contracts during the period	333
Balance at end of period	817
Build-to-order
Disaggregation of Revenue [Line Items]
Net revenues	23,649	20,543
Book-and-ship
Disaggregation of Revenue [Line Items]
Net revenues	137,617	70,421
Contractor Solutions
Disaggregation of Revenue [Line Items]
Net revenues	110,216	49,826
Contractor Solutions | Build-to-order
Disaggregation of Revenue [Line Items]
Net revenues	0	0
Contractor Solutions | Book-and-ship
Disaggregation of Revenue [Line Items]
Net revenues	110,216	49,826
Engineered Building Solutions
Disaggregation of Revenue [Line Items]
Net revenues	25,650	22,155
Engineered Building Solutions | Build-to-order
Disaggregation of Revenue [Line Items]
Net revenues	23,649	20,543
Engineered Building Solutions | Book-and-ship
Disaggregation of Revenue [Line Items]
Net revenues	2,001	1,612
Specialized Reliability Solutions
Disaggregation of Revenue [Line Items]
Net revenues	25,400	18,983
Specialized Reliability Solutions | Build-to-order
Disaggregation of Revenue [Line Items]
Net revenues	0	0
Specialized Reliability Solutions | Book-and-ship
Disaggregation of Revenue [Line Items]
Net revenues	$ 25,400	$ 18,983