Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3044-108585

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section 45
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=118951113&loc=d3e6676-107765

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.1)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Name:	us-gaap_CashAndCashEquivalentsAtCarryingValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Venezuelan operations (Narrative) (Details) $ in Thousands	12 Months Ended
Venezuelan operations (Narrative) (Details) $ in Thousands	Dec. 31, 2019 USD ($) / $	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Aug. 20, 2018 / $	Aug. 19, 2018 / $
Foreign Operations Disclosure [Line Items]
Revenue from Venezuelan operations	$ 10,184	$ 78,859	$ 101,477
Operating income (loss) from Venezuelan operations	(8,240)	(52,054)	$ 6,804
Cash and cash equivalents	$ 121,880	$ 197,282
NEW DICOM \| Venezuela
Foreign Operations Disclosure [Line Items]
Foreign currency exchange rate (VES per USD) \| / $	44,080.58			59.93	2.48
Asset reporting currency denomination	$ 200
Cash and cash equivalents	400
Non-monetary asset	$ 13,600