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Amount of deferred tax liability attributable to taxable temporary differences assumed at the acquisition date.

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Amount of other liabilities due after one year or the normal operating cycle, if longer, assumed at the acquisition date.

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The amount of property, plant, and equipment recognized as of the acquisition date.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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ACQUISITIONS AND DISPOSITIONS - Purchase Price Allocation - US Telecom (Details) - USD ($) $ in Thousands	1 Months Ended
	Jul. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Purchase price allocation:
Goodwill		$ 63,970	$ 62,873	$ 45,077
U.S. Telecom
Consideration Transferred
Cash consideration	$ 9,100
Purchase price allocation:
Property, plant and equipment	10,200
Deferred tax liabilities	3,500
Other long term liabilities	700
Goodwill	$ 3,100