Other Long-Term Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Schedule of Investments [Line Items]
Cash surrender value of corporate-owned life insurance policies	$ 3,523	$ 4,214
Deferred commissions	21,826	22,068
Restricted cash	55	56
Operating lease assets	21,944	9,653
Investment in unconsolidated affiliate	4,700
Warrants for unconsolidated affiliate	2,588
Prepaid expenses, deposits and other	4,821	4,190
Total other long-term assets	$ 59,457	$ 40,181
Flock Group Inc.
Schedule of Investments [Line Items]
Equity method investment, ownership percentage	5.00%

Prepaid Expenses, Deposits and Other Assets, Noncurrent

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Amount, after accumulated amortization and accumulated impairment loss, of asset recognized from cost incurred to obtain or fulfill contract with customer; classified as noncurrent.

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Fair value portion of the amount that could be realized under a life insurance contract or contracts owned by the entity, commonly known as corporate-owned life insurance (COLI) or bank-owned life insurance (BOLI).

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Amount of investment in equity security without readily determinable fair value.

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Amount of lessee's right to use underlying asset under operating lease.

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Amount of noncurrent assets classified as other.

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Amount of cash restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits.

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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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Value of outstanding derivative securities that permit the holder the right to purchase securities (usually equity) from the issuer at a specified price.

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