|**Leases Operating and Financing Leases (Tables)**                             | 12 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
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|**Leases [Abstract]**                                                          |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
|Lease, Cost [Table Text Block]                                                 | The following table presents the components of lease costs for the periods presented:Year Ended December 31,20212020(in thousands)Operating lease costs(1)$6,125$7,983Finance lease costs:Amortization of ROU assets1,7521,812Interest on lease liabilities164179Total finance lease costs1,9161,991Short-term lease costs(1)203,361193,756Total lease costs$211,402$203,730                                                                                                                                                                                                                                                                                                                                                                                         
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|Operating lease costs(1)                                                       |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
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|Finance lease costs:                                                           |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
|Amortization of ROU assets                                                     |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
|Interest on lease liabilities                                                  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
|Total finance lease costs                                                      |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
|Short-term lease costs(1)                                                      |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
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|Total lease costs                                                              |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
|Operating and Financing Leases Financial Statement Location [Table Text Block] | The following table presents the balance sheet classification and other information regarding our leases as of the dates indicated:December 31,Consolidated Balance Sheet Line Item20212020(in thousands)Operating lease ROU assetsOther assets$7,630$11,722Finance lease ROU assetsProperties and equipment, net$3,483$3,189Total ROU assets$11,113$14,911Operating lease obligation - short-termOther accrued expenses5,9376,520Operating lease obligation - long-termOther liabilities4,0449,061Finance lease obligation - short-termOther accrued expenses1,2601,466Finance lease obligation - long-termOther liabilities2,2301,702Total lease liabilities$13,471$18,749Weighted average remaining lease term (years)2.83.0Weighted average discount rate4.8%4.8%
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|Operating lease ROU assets                                                     |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
|Finance lease ROU assets                                                       |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
|Total ROU assets                                                               |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
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|Operating lease obligation - short-term                                        |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
|Operating lease obligation - long-term                                         |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
|Finance lease obligation - short-term                                          |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
|Finance lease obligation - long-term                                           |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
|Total lease liabilities                                                        |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
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|Weighted average remaining lease term (years)                                  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
|Weighted average discount rate                                                 |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
|Operating and Financing Lease, Liability, Maturity                             | Maturity of lease liabilities by year and in the aggregate, under operating and financing leases with terms of one year or more, as of December 31, 2021 consist of the following:Operating LeasesFinance LeasesTotal(in thousands)2022$6,214$1,378$7,59220231,7671,1192,88620249506121,56220259504731,4232026747148895Total lease payments10,6283,73014,358Less: Interest and discount(647)(240)(887)Present value of lease liabilities$9,981$3,490$13,471                                                                                                                                                                                                                                                                                                          
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|2022                                                                           |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
|2023                                                                           |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
|2024                                                                           |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
|2025                                                                           |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
|2026                                                                           |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
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|Total lease payments                                                           |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
|Less: Interest and discount                                                    |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
|Present value of lease liabilities                                             |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      

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