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Goodwill and Intangibles (Schedule of Intangibles) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2017 | Jun. 30, 2016 | Jun. 30, 2017 | Jun. 30, 2016 | Dec. 31, 2016
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Acquisition cost | $ 96,721 |  | $ 96,721 |  | $ 56,495
Accumulated amortization | (20,039) |  | (20,039) |  | (17,235)
Net | 76,682 |  | 76,682 |  | 39,260
Amortization of Intangible Assets | 1,646 | $ 807 | 3,039 | $ 1,533 |
Finite-Lived Intangible Assets, Net | 76,682 |  | 76,682 |  | 39,260
Customer Lists [Member] |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Acquisition cost | 56,239 |  | 56,239 |  | 27,476
Accumulated amortization | (10,737) |  | (10,737) |  | (9,138)
Net | 45,502 |  | 45,502 |  | 18,338
Finite-Lived Intangible Assets, Net | 45,502 |  | 45,502 |  | 18,338
Tradenames [Member] |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Acquisition cost | 23,302 |  | 23,302 |  | 18,116
Accumulated amortization | (5,059) |  | (5,059) |  | (4,558)
Net | 18,243 |  | 18,243 |  | 13,558
Finite-Lived Intangible Assets, Net | 18,243 |  | 18,243 |  | 13,558
Technology [Member] |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Acquisition cost | 17,139 |  | 17,139 |  | 10,862
Accumulated amortization | (4,202) |  | (4,202) |  | (3,498)
Net | 12,937 |  | 12,937 |  | 7,364
Finite-Lived Intangible Assets, Net | 12,937 |  | 12,937 |  | 7,364
Other [Member] |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Acquisition cost | 41 |  | 41 |  | 41
Accumulated amortization | $ (41) |  | $ (41) |  | $ (41)

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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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