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Summary of Significant Accounting Policies (Tables)
 12 Months Ended
Feb. 28, 2021
Feb. 29, 2020
Accounting Policies [Abstract]    
Schedule of Changes in Contract Liabilities  
The following table shows the changes in contract liabilities for fiscal year 2021 and 2020 (in thousands):
20212020
Balance at beginning of period$18,418 $56,928 
Contract liabilities added during the period11,868 14,292 
Sales recognized during the period(14,148)(52,802)
Balance at end of period$16,138 $18,418 
Disaggregation of Revenue
Disaggregated Revenue
Revenue by segment and geography is disclosed in Note 12. In addition, the following table presents disaggregated revenue by customer industry for fiscal years 2021, 2020 and 2019 (in thousands):

202120202019
Sales:
Industrial$511,740 $605,236 $526,465 
Transmission and distribution209,729 254,836 212,433 
Power generation117,448 201,745 188,189 
Total sales$838,917 $1,061,817 $927,087 
  
Property, Plant and Equipment Depreciation is computed using the straight-line method over the estimated useful lives of the related assets as follows:
 
Buildings and structures
10-25 years
Machinery and equipment
3-15 years
Furniture and fixtures
3-15 years
Automotive equipment3 years
Computers and software
3-7 years
Property, plant and equipment consisted of the following as of February 28, 2021 and February 29, 2020 (in thousands):
20212020
Land$21,328 $21,826 
Building and structures155,338 162,851 
Machinery and equipment249,065 252,726 
Furniture, fixtures, software and computers31,179 28,938 
Automotive equipment3,591 4,394 
Construction in progress26,223 16,466 
486,724 487,201 
Less accumulated depreciation(280,815)(274,097)
Property, plant, and equipment, net$205,909 $213,104 
The following table outlines the classification of depreciation expense in the statements of income for fiscal 2021, 2020, and 2019 (in thousands):
202120202019
Cost of sales$29,884 $30,721 $30,747 
Selling, general and administrative2,320 2,349 2,464 
Total depreciation expense$32,204 $33,070 $33,211 
  
Schedule of Warranty Reserve
The following table shows the changes in the Company’s warranty reserve for fiscal year 2021, 2020 and 2019 (in thousands):
 
202120202019
Balance at beginning of period$3,702 $1,751 $2,013 
Warranty costs incurred(1,865)(2,118)(2,195)
Additions charged to income2,623 4,069 1,933 
Transferred to held for sale(381)— — 
Balance at end of period$4,079 $3,702 $1,751 
  
Schedule of Accumulated Other Comprehensive Income (Loss)
The components of accumulated other comprehensive loss consisted of the following as of February 28, 2021 and February 29, 2020 (in thousands):
20212020
Foreign currency translation adjustments$(25,084)$(30,949)
Interest rate swap— 50 
Accumulated other comprehensive loss$(25,084)$(30,899)
  
Financing Receivable, Allowance for Credit Loss
The following table shows the changes in the allowance for credit losses for fiscal 2021, 2020 and 2019 (in thousands):
 202120202019
Balance at beginning of year$4,951 $2,267 $569 
Adjustment based on aged receivables analysis1,040 2,734 2,153 
Charge-offs, net(354)(129)(451)
Other(41)106 — 
Effect of exchange rate changes117 (27)(4)
Balance at end of year$5,713 $4,951 $2,267