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Tangible Equity Units (Narrative) (Details) - USD ($)
$ / shares in Units, $ in Thousands
1 Months Ended 12 Months Ended
Jul. 01, 2019
Jul. 31, 2019
Mar. 31, 2020
Sep. 30, 2019
Tangible Equity Units [Line Items]        
Share offering 49,285,713      
Conversion to shares     $ 3.2051  
Senior Amortizing Note [Member]        
Tangible Equity Units [Line Items]        
Maturity date     Jun. 30, 2022  
Initial principal amount     $ 8.2378  
Stated interest rate     5.50%  
Cash installment     $ 0.7500 $ 0.7417
Settlement date     Jun. 30, 2022  
Minimum [Member]        
Tangible Equity Units [Line Items]        
Share offering     18,429,325  
Maximum [Member]        
Tangible Equity Units [Line Items]        
Share offering     22,115,075  
Applicable Market Value is greater than $15.60 per share [Member]        
Tangible Equity Units [Line Items]        
Share price     $ 15.60  
Conversion to shares     3.2051  
Applicable Market Value is less than or equal to $15.60 per share but greater than or equal to $13.00 per share [Member]        
Tangible Equity Units [Line Items]        
Conversion to shares     50  
Applicable Market Value is less than or equal to $15.60 per share but greater than or equal to $13.00 per share [Member] | Minimum [Member]        
Tangible Equity Units [Line Items]        
Share price     13.00  
Applicable Market Value is less than or equal to $15.60 per share but greater than or equal to $13.00 per share [Member] | Maximum [Member]        
Tangible Equity Units [Line Items]        
Share price     15.60  
Applicable Market Value is less than $13.00 per share [Member]        
Tangible Equity Units [Line Items]        
Share price     13.00  
Conversion to shares     $ 3.8461  
Tangible Equity Units [Member]        
Tangible Equity Units [Line Items]        
Tangible equity unit offering 5,750,000 5,750,000 5,750,000  
Total proceeds, net of issuance costs $ 278,875 $ 278,875 $ 278,875  
TEU price per share   $ 50 $ 50.00  
Initial principal amount     $ 8.2378  
Tangible Equity Units [Member] | Applicable Market Value is less than or equal to $15.60 per share but greater than or equal to $13.00 per share [Member] | Minimum [Member]        
Tangible Equity Units [Line Items]        
Share offering     18,429,325  
Share price     $ 13.00  
Tangible Equity Units [Member] | Applicable Market Value is less than or equal to $15.60 per share but greater than or equal to $13.00 per share [Member] | Maximum [Member]        
Tangible Equity Units [Line Items]        
Share price     $ 15.60