Debt Instrument, Extension Fee

No definition available.

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- Definition

Line Of Credit Facility, Expiration Period Prior To Final Maturity Of Senior Notes

+ References

No definition available.

+ Details

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- Definition

Number Of Board Members

+ References

No definition available.

+ Details

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Period Type:	instant

- Definition

Research And Development Expense (Excluding Engineering)

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

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- Definition

Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 18
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8672-108599

+ Details

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- Definition

Amount of cash restricted as to withdrawal or usage, classified as current. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=121583591&loc=SL98516268-108586

Reference 2: 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

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section 45
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=121566466&loc=d3e6676-107765

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Balance Type:	debit
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- Details

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Namespace Prefix:
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- Details

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Summary of Significant Accounting Policies and Other Information - Narrative (Details)	1 Months Ended	3 Months Ended		9 Months Ended
	Apr. 30, 2020 USD ($)	Sep. 30, 2020 USD ($) board_member	Sep. 30, 2019 USD ($)	Sep. 30, 2020 USD ($) board_member segment	Sep. 30, 2019 USD ($)	Dec. 31, 2019 USD ($)
Concentration Risk [Line Items]
Number of board members \| board_member		3		3
Number of operating segments \| segment				1
Research and development and engineering expenses		$ 6,200,000	$ 5,900,000	$ 18,200,000	$ 17,400,000
Outstanding letters of credit amount		2,800,000		2,800,000
Restricted cash		$ 3,299,000	$ 0	$ 3,299,000	$ 0	$ 0
Revolving Credit Facility \| Standard Chartered Bank Credit Agreement
Concentration Risk [Line Items]
Borrowing amount	$ 130,000,000.0
Maturity period prior to the final maturity of unsecured senior notes	60 days
Extension fee percentage	0.25%