Commitments and Contingencies - Schedule of Future Minimum Lease Payments under Leases (Detail) $ in Thousands	Dec. 31, 2020 USD ($)
Commitments And Contingencies [Line Items]
2021	$ 5,946
2022	4,865
2023	3,146
2024	1,812
2025 and thereafter	4,954
Total	20,723
Building
Commitments And Contingencies [Line Items]
2021	5,568
2022	4,572
2023	3,043
2024	1,784
2025 and thereafter	4,954
Total	19,921
Office Equipment
Commitments And Contingencies [Line Items]
2021	378
2022	293
2023	103
2024	28
Total	$ 802

Commitments and contingencies.

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- Definition

Lessee operating lease liability payments due after year four.

+ References

No definition available.

+ Details

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- Definition

Amount of lessee's undiscounted obligation for lease payment for operating lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918701-209980

+ Details

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- Definition

Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

+ Details

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- Definition

Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

+ Details

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- Definition

Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

+ Details

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- Definition

Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

+ Details

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