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DEFERRED CONTRACT COSTS (Tables) | 6 Months Ended
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Jun. 30, 2019
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract] |
Schedule of Impairment of Deferred Contract Costs |
(in thousands) | June 30, 2019 |  | December 31, 2018
Deferred contract costs (1) | $ | 64,809 |  |  | $ | 64,367 |
(1) Included in other long-term assets.
Schedule of amortization of deferred contract costs |
| Three Months Ended June 30, |  | Six Months Ended June 30,
(in thousands) | 2019 |  | 2018 |  | 2019 |  | 2018
Amortization of deferred contract costs (1) | $ | 5,878 |  |  | $ | 3,809 |  |  | $ | 14,179 |  |  | $ | 7,598 |
(1) Included in selling and marketing expenses.

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- Definition Tabular disclosure of the amounts paid in advance for capitalized costs that will be expensed with the passage of time or the occurrence of a triggering event, and will be charged against earnings within one year or the normal operating cycle, if longer; the aggregate carrying amount of current assets, not separately presented elsewhere in the balance sheet; and other deferred costs. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.17) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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