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Summary of Significant Accounting Policies - Additional Information (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($) Segment	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)
Basis Of Presentation And Accounting Policies [Line Items]
Number of reportable segments \| Segment	2
Unearned revenue	$ 579	$ 1,597
capitalized costs to obtain contract	1,893	374
Amortization of capitalized costs into product revenues	1,006
Cash and cash equivalents	50,443	39,620
Depreciation expense	$ 33,639	36,270	$ 32,224
Operating lease, description	The Company has operating leases for office, manufacturing and research and development facilities, as well as land leases for certain manufacturing facilities that are accounted for as operating leases. We also have operating leases for office equipment and automobiles.
Operating lease, existence of option to extend	true
Operating lease, options to extend	Excluding land leases, our leases have remaining lease terms ranging from less than 1 year to 7 years and may include options to extend the lease for an additional term equal to the original term of the lease.
Performance Based Restricted Stock Units
Basis Of Presentation And Accounting Policies [Line Items]
Awards vesting period	3 years
Production Tooling
Basis Of Presentation And Accounting Policies [Line Items]
Reimbursable tooling capitalized within prepaid expenses and other current assets	$ 5,347	$ 6,628
Concentration of Credit Risk \| Accounts receivable \| Lear
Basis Of Presentation And Accounting Policies [Line Items]
Concentration risk percentage	21.00%	21.00%
Concentration of Credit Risk \| Accounts receivable \| Adient
Basis Of Presentation And Accounting Policies [Line Items]
Concentration risk percentage	21.00%	18.00%
Concentration of Credit Risk \| Accounts receivable \| Magna
Basis Of Presentation And Accounting Policies [Line Items]
Concentration risk percentage	7.00%
Concentration of Credit Risk \| Accounts receivable \| Faurecia
Basis Of Presentation And Accounting Policies [Line Items]
Concentration risk percentage		9.00%
Foreign Jurisdictions
Basis Of Presentation And Accounting Policies [Line Items]
Cash and cash equivalents	$ 35,735	$ 31,976
Industrial Segments
Basis Of Presentation And Accounting Policies [Line Items]
Unearned revenue		5,296
Minimum
Basis Of Presentation And Accounting Policies [Line Items]
Expected period of costs to be realized to recognize assets	1 year
Operating lease, term of contract	1 year
Minimum \| Production Tooling
Basis Of Presentation And Accounting Policies [Line Items]
Property plant and equipment, estimated useful life	2 years
Minimum \| Ground
Basis Of Presentation And Accounting Policies [Line Items]
Operating lease, term of contract	41 years
Maximum
Basis Of Presentation And Accounting Policies [Line Items]
Ownership interest	20.00%
Original maturities of highly liquid investments	90 days
Operating lease, term of contract	7 years
Maximum \| Production Tooling
Basis Of Presentation And Accounting Policies [Line Items]
Property plant and equipment, estimated useful life	10 years
Maximum \| Ground
Basis Of Presentation And Accounting Policies [Line Items]
Operating lease, term of contract	43 years
Customer Relationship
Basis Of Presentation And Accounting Policies [Line Items]
Amortization of intangible assets		$ 10,246	$ 8,308