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Accounting Policies (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Dec. 31, 2018
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]      
Right of use assets $ 20,800    
Lease liabilities 20,773    
Collected on sold receivables $ 0 $ 44,406  
ASU 2016-02 [Member]      
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]      
Right of use assets     $ 20,700
Lease liabilities     $ 20,700
ASU 2016-15 [Member] | Restatement Adjustment [Member]      
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]      
Collected on sold receivables   35,400  
Proceeds from life insurance   $ 1,600