Cash and Cash Equivalents and Restricted Cash	9 Months Ended
Sep. 30, 2021
Cash And Cash Equivalents [Abstract]
Cash, Cash Equivalents and Restricted Cash	(4) Cash, Cash Equivalents and Restricted Cash As of September 30, 2021 and December 31, 2020, the Company's cash, cash equivalents and restricted cash consisted of financial deposits. Cash, cash equivalents and restricted cash held within the U.S. are held at FDIC insured depository institutions. Cash, cash equivalents and restricted cash held outside the U.S. totaled $22.3 million and $32.2 million as of September 30, 2021 and December 31, 2020, respectively. Restricted cash consisted primarily of cash restricted for performance bonds, warranty bonds and collateral for borrowings. Long-term restricted cash was $0.2 million as of September 30, 2021 and December 31, 2020 and is included in other assets on the unaudited condensed consolidated balance sheets.

The entire disclosure for cash and cash equivalent footnotes, which may include the types of deposits and money market instruments, applicable carrying amounts, restricted amounts and compensating balance arrangements. Cash and equivalents include: (1) currency on hand (2) demand deposits with banks or financial institutions (3) other kinds of accounts that have the general characteristics of demand deposits (4) 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. Generally, only investments maturing within three months from the date of acquisition qualify.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-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=120391452&loc=d3e13212-122682

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