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Recent Accounting Pronouncements (Narrative) (Details) - USD ($) $ in Thousands | Jun. 30, 2020 | Jan. 01, 2020 | Dec. 31, 2019
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New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Allowance for credit losses | $ (32,813) |  | $ (26,849)
Accounts receivable, allowance for credit loss | $ (23,613) |  | $ (18,723)
Accounting Standards Update 2016-13 [Member] |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Allowance for credit losses |  | $ 3,800 |
Accounts receivable, allowance for credit loss |  | 1,000 |
Retained Earnings [Member] |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Cumulative effect of adoption of ASU No 2016-13, net of taxes |  | $ 3,827 |

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