Quarterly report pursuant to Section 13 or 15(d)

Debt - Term Loan, Net (Details)

v3.10.0.1
Debt - Term Loan, Net (Details) - USD ($)
Sep. 01, 2017
Sep. 30, 2018
Feb. 28, 2018
Debt Instrument [Line Items]      
Minimum Market Capitalization covenant, amount $ 300,000,000   $ 300,000,000
Minimum Market Capitalization covenant, percentage of outstanding principle amount of loan     200.00%
CRG Servicing LLC | Secured Debt | Line of Credit | Term Loan      
Debt Instrument [Line Items]      
Maximum borrowing capacity (up to) 300,000,000   $ 200,000,000
Proceeds from line of credit $ 100,000,000    
Remaining borrowing capacity   $ 0  
Interest rate per annum 9.50%    
Covenant, perfected interest, percentage of capital stock of subsidiaries 65.00%    
Covenant, prepayment premium, percentage of principal amount 32.50%    
CRG Servicing LLC | Secured Debt | Line of Credit | Term Loan | Tranche One      
Debt Instrument [Line Items]      
Remaining borrowing capacity     25,000,000
CRG Servicing LLC | Secured Debt | Line of Credit | Term Loan | Tranche Two      
Debt Instrument [Line Items]      
Remaining borrowing capacity     25,000,000
CRG Servicing LLC | Secured Debt | Line of Credit | Term Loan | Tranche Three      
Debt Instrument [Line Items]      
Remaining borrowing capacity     $ 50,000,000