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Goodwill and Intangibles (Schedule of Intangibles) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Finite-Lived Intangible Assets [Line Items]
Acquisition cost	$ 97,048		$ 56,495
Accumulated amortization	(19,380)		(17,235)
Net	77,668		39,260
Amortization of Intangible Assets	1,394	$ 726
Finite-Lived Intangible Assets, Net	77,668		39,260
Customer Lists [Member]
Finite-Lived Intangible Assets [Line Items]
Acquisition cost	55,698		27,476
Accumulated amortization	(10,315)		(9,138)
Net	45,383		18,338
Finite-Lived Intangible Assets, Net	45,383		18,338
Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Acquisition cost	23,976		18,116
Accumulated amortization	(5,037)		(4,558)
Net	18,939		13,558
Finite-Lived Intangible Assets, Net	18,939		13,558
Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Acquisition cost	17,333		10,862
Accumulated amortization	(3,987)		(3,498)
Net	13,346		7,364
Finite-Lived Intangible Assets, Net	13,346		7,364
Other [Member]
Finite-Lived Intangible Assets [Line Items]
Acquisition cost	41		41
Accumulated amortization	$ (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

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Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

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-Topic 350
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Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

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