Operating Leases, Future Minimum Payments, Due in Six Years

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Number of another entity's patents that the entity has allegedly infringed.

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Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the remainder of the fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of the unrecorded obligation to transfer funds in the future for fixed or minimum amounts or quantities of goods or services at fixed or minimum prices (for example, as in take-or-pay contracts or throughput contracts).

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COMMITMENTS AND CONTINGENCIES (Details) $ in Thousands		1 Months Ended	9 Months Ended
COMMITMENTS AND CONTINGENCIES (Details) $ in Thousands	Jan. 23, 2018 patent	Jul. 31, 2016 USD ($)	Dec. 31, 2018 USD ($)
Loss Contingencies [Line Items]
2019			$ 3,690
2020			14,461
2021			11,338
2022			8,374
2023			3,714
2024			495
Total minimum future rental payments			42,071
Unconditional purchase obligations			448,800
GN Netcom, Inc. vs. Plantronics, Inc. [Member] \| Punitive Sanctions [Member]
Loss Contingencies [Line Items]
Sanctions order issued for allegations of spoliation of evidence		$ 4,900
Amount awarded from other party			$ 200
Polycom [Member]
Loss Contingencies [Line Items]
Patents allegedly infringed upon \| patent	2