Business Combinations (Narratives) (Details) - USD ($) $ in Thousands	Dec. 01, 2017	Oct. 27, 2017	Jul. 14, 2017	Mar. 07, 2017
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