Amount of the fee that accompanies borrowing money under the debt instrument.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

+ References

No definition available.

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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
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3213-108585

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- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

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SUBSEQUENT EVENT - Narrative (Details)		3 Months Ended	12 Months Ended
SUBSEQUENT EVENT - Narrative (Details)	Feb. 28, 2018 USD ($)	Mar. 31, 2018 segment	Dec. 31, 2017 Segment	Feb. 06, 2018 USD ($)	Dec. 31, 2013 USD ($)
Subsequent Event [Line Items]
Credit limit					$ 350,000,000.0
Number of reportable segments (segment) \| Segment			6
Subsequent Event
Subsequent Event [Line Items]
Number of reportable segments (segment) \| segment		2
SingleHop, LLC \| Subsequent Event
Subsequent Event [Line Items]
Payment to acquire business	$ 132,000,000
Incremental Term Loan \| Credit Agreement 2017 \| Subsequent Event
Subsequent Event [Line Items]
Credit limit				$ 135,000,000
Fee amount				$ 800,000