Annual report pursuant to Section 13 and 15(d)

BORROWINGS - Notes Payable Narrative (Details)

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BORROWINGS - Notes Payable Narrative (Details) - USD ($)
1 Months Ended
Aug. 31, 2021
Mar. 31, 2021
Mar. 31, 2023
Mar. 31, 2022
Mar. 31, 2020
Mar. 31, 2019
Mar. 31, 2018
Mar. 31, 2017
Mar. 31, 2016
Mar. 31, 2015
Mar. 31, 2014
Debt Instrument [Line Items]                      
Aggregate Principal Amount   $ 155,434,000 $ 297,688,000 $ 267,584,000 $ 54,296,000 $ 58,096,000 $ 112,096,000 $ 74,796,000 $ 100,096,000 $ 123,896,000 $ 66,250,000
Notes Payable                      
Debt Instrument [Line Items]                      
Aggregate Principal Amount     $ 262,488,000 $ 262,488,000              
Notes Payable | 2026 Notes                      
Debt Instrument [Line Items]                      
Interest Rate   5.00% 5.00% 5.00%              
Aggregate Principal Amount   $ 127,900,000 $ 127,938,000 $ 127,938,000              
Proceeds from issuance of long-term debt   123,800,000                  
Borrowings outstanding at cost   $ 4,100,000                  
Notes payable, fair value disclosure     $ 121,500,000 $ 128,300,000              
Notes Payable | 2028 Notes                      
Debt Instrument [Line Items]                      
Interest Rate 4.875%   4.875% 4.875%              
Aggregate Principal Amount $ 134,600,000   $ 134,550,000 $ 134,550,000              
Proceeds from issuance of long-term debt 131,300,000                    
Borrowings outstanding at cost $ 3,300,000                    
Notes payable, fair value disclosure     $ 127,400,000 $ 134,300,000