The percent of total entity revenue represented by the disposal group.

No definition available.

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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

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-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Date when the acquirer obtains control of the acquiree, in CCYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 25
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=73531572&loc=d3e845-128460

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-Publisher FASB
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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

Amount of liabilities incurred by the acquirer as part of consideration transferred in a business combination.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
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Balance Type:	credit
Period Type:	duration

- Definition

For contingent consideration arrangements recognized in connection with a business combination, this element represents an estimate of the high-end of the potential range (undiscounted) of the consideration which may be paid.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (c)(3)
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- Definition

Amount of intangible assets, excluding goodwill, acquired at the acquisition date.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
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-Paragraph 1
-Subparagraph (c)
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Balance Type:	debit
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- Definition

The amount of the valuation allowance recorded in a business combination against deductible temporary differences for which related tax benefits will be recorded as a reduction of the acquired entity's goodwill if those tax benefits become realizable.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 740
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-Paragraph 3
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- References

No definition available.

+ Details

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- Definition

Amount before tax of gain (loss) recognized on the sale or disposal of a disposal group. Excludes discontinued operations.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
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- Definition

Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Investing Activities
-URI http://asc.fasb.org/extlink&oid=6516133

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Acquisition and Disposition (Details 1) - USD ($) $ in Thousands				12 Months Ended
	Mar. 04, 2016	Apr. 14, 2015	Mar. 16, 2015	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Acquisition and Disposition
Intangible asset amortization				$ 713	$ 821	$ 659
Sale of business
Loss on sale				$ 0	$ 0	$ 9,501
Maximum
Acquisition and Disposition
Amortization period					10 years
Aleutian Consulting Inc
Acquisition and Disposition
Effective date of acquisition	Mar. 04, 2016
Payments to Acquire Businesses, Gross	$ 3,500
3Q Digital Inc
Acquisition and Disposition
Effective date of acquisition			Mar. 16, 2015
Payments to Acquire Businesses, Gross			$ 30,245
Estimated fair value of contingent consideration			17,940
Contingent consideration potential payment, high			35,000
Identifiable intangible assets			4,773
Deferred tax adjustment			2,299
3Q Digital Inc \| Customer relationships
Acquisition and Disposition
Identifiable intangible assets			$ 4,300
Amortization period			7 years
3Q Digital Inc \| Tradenames and trademarks
Acquisition and Disposition
Identifiable intangible assets			$ 300
Amortization period			2 years
3Q Digital Inc \| Non-compete agreements
Acquisition and Disposition
Identifiable intangible assets			$ 200
Amortization period			3 years
Disposition \| B2B research business
Sale of business
Loss on sale		$ 9,500
Disposition \| B2B research business \| Maximum
Sale of business
Percent of total Company revenue (less than)		5.00%