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Business Combinations (Narratives) (Details) - USD ($) $ in Thousands | Dec. 01, 2017 | Oct. 27, 2017 | Jul. 14, 2017 | Mar. 07, 2017
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Data Center Business |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Asset purchase agreement closing date |  | Oct. 27, 2017 |  |
Business acquisition, purchase price |  | $ 84,300 |  |
Net assets acquired, financing receivables |  | 33,488 |  |
Net assets acquired, identifiable intangible assets |  | $ 32,800 |  |
Campus Fabric Business |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Asset purchase agreement closing date |  |  | Jul. 14, 2017 |
Business acquisition, provisional consideration |  |  |  | $ 79,400
Net assets acquired, financing receivables |  |  | $ 19,527 |
Net assets acquired, identifiable intangible assets |  |  | $ 41,300 |
Capital Financing Business |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Asset purchase agreement closing date | Dec. 01, 2017 |  |  |
Business combination, payments to seller in percentage of finance receivables | 90.00% |  |  |
Net assets acquired, financing receivables | $ 13,700 |  |  |
Net assets acquired, lease equipment | 3,500 |  |  |
Net assets acquired, identifiable intangible assets | 800 |  |  |
Fair value of contingent consideration | 13,000 |  |  |
Recorded gain from bargain purchase | $ 5,000 |  |  |

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