Revenue from Contracts with Customers (Details Textual) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018
Accounts receivable, net	$ 46,624	$ 42,123
Deferred revenue	67,121	69,066
Recognized revenue from contract	39,885	15,278
Prepaid expenses and other assets	450	2,920
Capitalized costs	2,755	1,428
Unbilled receivables	3,710	3,644
Advances against customer contracts	27,347
2019	38,563
2020	14,446
2021	7,050
2022	2,985
2023	1,679
2024	2,398
Service contract revenues [Member]
Recognized revenue from contract	$ (31,553)

Advances against customer contracts.

No definition available.

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- Definition

Represents information related to capitalized costs.

+ References

No definition available.

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- Definition

The amount of prepaid expenses and other assets of capitalized costs.

+ References

No definition available.

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- Definition

Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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-Section 45
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- Definition

Amount billed to customers under long-term contracts or programs to be collected after the next fiscal year following the latest fiscal year. Excludes amounts due that have been withheld because of retainage provisions in a contract. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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- Definition

Amount billed to customers under long-term contracts or programs to be collected after the fifth fiscal year following the latest fiscal year. Excludes amounts due that have been withheld because of retainage provisions in a contract. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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Amount billed to customers under long-term contracts or programs to be collected in the fifth fiscal year following the latest fiscal year. Excludes amounts due that have been withheld because of retainage provisions in a contract. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount billed to customers under long-term contracts or programs to be collected in the second fiscal year following the latest fiscal year. Excludes amounts due that have been withheld because of retainage provisions in a contract. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount billed to customers under long-term contracts or programs to be collected in the fourth fiscal year following the latest fiscal year. Excludes amounts due that have been withheld because of retainage provisions in a contract. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount billed to customers under long-term contracts or programs to be collected in the third fiscal year following the latest fiscal year. Excludes amounts due that have been withheld because of retainage provisions in a contract. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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- Definition

Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.

+ References

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- Definition

Amount of deferred income and obligation to transfer product and service to customer for which consideration has been received or is receivable.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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Amount received for services rendered and products shipped, but not yet billed, for non-contractual agreements due within one year or the normal operating cycle, if longer.

+ References

No definition available.

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