Coronavirus, Aid, Relief, And Economic Securities (CARES) Act, Funds Received

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Terminating term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Represents the minimum contractual term of certain current investments which the company has the ability and intent, if necessary, to liquidate in order to support its current operations.

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Represents the number of software development stages.

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Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

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Fair value of the assets less the liabilities of a derivative or group of derivatives.

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Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

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Nominal or face amount used to calculate payment on derivative.

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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.

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Term of lessee's operating lease renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details)	1 Months Ended	3 Months Ended		6 Months Ended		12 Months Ended
	Apr. 30, 2020 USD ($)	Jun. 30, 2020 USD ($) stagesInSoftwareDevelopment	Jun. 30, 2019 USD ($)	Jun. 30, 2020 USD ($) stagesInSoftwareDevelopment	Jun. 30, 2019 USD ($)	Dec. 31, 2019 USD ($)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Coronavirus, aid, relief, and economic securities act, funds received	$ 23,700,000
Minimum contractual term of certain current investments which can be liquidated				1 year
Software development stages \| stagesInSoftwareDevelopment		3		3
Derivative, gain (loss) on derivative, net		$ 0	$ 0	$ 0	$ 0
Asset impairment charges				$ 0		$ 0
Termination term				1 year
Minimum
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Remaining lease terms		1 year		1 year
Maximum
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Remaining lease terms		15 years		15 years
Renewal term of lease		10 years		10 years
Foreign Exchange Forward
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative, notional amount		$ 16,000,000.0		$ 16,000,000.0		17,900,000
Derivative, fair value		$ 0		$ 0		$ 0