Number of Awards Subject to Continued Employment

No definition available.

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- Definition

Number of Awards in Repurchase of Subsidiary Unit Agreement

+ References

No definition available.

+ Details

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- Definition

Related Party Transaction, Number of Employees Granted Awards

+ References

No definition available.

+ Details

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- 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
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (c)(3)
-URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479

+ Details

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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

The amount by which the fair value of an investment is less than the amortized cost basis or carrying amount of that investment at the balance sheet date and the decline in fair value is deemed to be other than temporary, before considering whether or not such amount is recognized in earnings or other comprehensive income.

+ References

Reference 1: 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=98514028&loc=d3e3602-108585

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 35
-Paragraph 34
-URI http://asc.fasb.org/extlink&oid=82895926&loc=d3e25351-111560

+ Details

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Balance Type:	debit
Period Type:	duration

- Details

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- Details

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- Details

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Fair Value Measurements - Narrative (Details)	3 Months Ended		6 Months Ended
Fair Value Measurements - Narrative (Details)	Jun. 30, 2017 USD ($)	Jun. 30, 2016 USD ($)	Jun. 30, 2017 USD ($) employee award	Jun. 30, 2016 USD ($)	Mar. 31, 2015 USD ($)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other-than-temporary impairments \| $	$ 0	$ 0	$ 0	$ 0
Contingent Consideration, Earn Out Program \| SecurityTrax
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Maximum amount of contingent consideration liability to be paid \| $					$ 2,000,000.0
Repurchase of Subsidiary Units, February 2011
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Number of employees to be granted awards \| employee			2
Number of awards in subsidiary unit agreement \| award			2
Number of awards subject to continued employment \| award			1