XML 77 R67.htm IDEA: XBRL DOCUMENT v3.21.1

Deferred Income (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Revenue Recognition and Deferred Revenue [Abstract]
Deferred revenue	$ 19,821	$ 24,762

X

- Definition

Amount of gain on the sale of property that does not qualify for gain recognition as of the balance sheet date.

+ References

No definition available.

+ Details

Name:	us-gaap_DeferredGainOnSaleOfProperty
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- References

No definition available.

+ Details

Name:	us-gaap_RevenueRecognitionAndDeferredRevenueAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration