XML 31 R13.htm IDEA: XBRL DOCUMENT
v3.21.1

Investment in Affiliate (Notes) | 12 Months Ended
--- | ---
Dec. 31, 2020
Investments in and Advances to Affiliates [Abstract] |
Investments in and Advances to Affiliates, Schedule of Investments [Text Block] | Investment in AffiliateIn November 2018, in connection with the divestiture of Overland, the Company received 1,879,699 SVTP Preferred Shares representing 19.9% of the outstanding shares of capital stock of SVTP with a fair value of $2.1 million. The fair value of this investment was estimated using discounted cash flows. The Company concluded it does not have a significant influence over the investee. There were no known identified events or changes in circumstances that may have a significant adverse effect on the fair value of the investment at December 31, 2020.

X
- References No definition available. + Details
Name: | us-gaap_InvestmentsInAndAdvancesToAffiliatesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The entire disclosure for the information summarizing investments in and advances to majority-owned subsidiaries, other controlled companies, and other affiliates. It reflects specified information about ownership, financial results from, and financial position in such entities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 320 -URI http://asc.fasb.org/subtopic&trid=2324412 + Details
Name: | us-gaap_InvestmentsInAndAdvancesToAffiliatesScheduleOfInvestmentsTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration