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Debt and Financing Arrangements - Classification of the Company Lease Obligations (Detail) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020	Jun. 30, 2020
Operating Lease Obligations:
Other Current Liabilities (current portion)	$ 1,500
Other Noncurrent Liabilities (long-term portion)	3,400
Capital Lease Obligations:
Other Current Liabilities (current portion)	200
Other Noncurrent Liabilities (long-term portion)	200
Lease Obligations [Member]
Operating Lease Obligations:
Other Current Liabilities (current portion)	1,500	$ 1,500	$ 1,300
Other Noncurrent Liabilities (long-term portion)	3,400	3,700	3,200
Total Operating Lease Obligations	4,939	5,200	4,500
Capital Lease Obligations:
Other Current Liabilities (current portion)	200	200	200
Other Noncurrent Liabilities (long-term portion)	200	200	300
Total Capital Lease Obligations	399	400	500
Total Lease Obligations	$ 5,300	$ 5,600	$ 5,000

X

- Definition

Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal through the balance sheet date.

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Amount of capital lease obligation due within one year or the normal operating cycle, if longer.

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Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal, through the balance sheet date and due to be paid more than one year (or one operating cycle, if longer) after the balance sheet date.

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Present value of lessee's discounted obligation for lease payments from operating lease.

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Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent.

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