Japan pension plan	6 Months Ended
Japan pension plan	Jun. 30, 2022
Retirement Benefits [Abstract]
Japan pension plan	Japan pension plan The pension liability related to the Company’s Retirement Allowance Plan (“RAP”) in Japan as of June 30, 2022 was $2.2 million, of which $0.2 million was recorded in accrued and other current liabilities and the remainder in other noncurrent liabilities on the Company’s condensed consolidated balance sheet. The pension liability related to RAP in Japan as of December 31, 2021 was $2.7 million, of which $0.3 million, was recorded in accrued and other current liabilities and the remainder in other noncurrent liabilities on the Company’s condensed consolidated balance sheet. Net periodic pension cost associated with this plan was immaterial in the three and six months ended June 30, 2022 and 2021.

The entire disclosure for retirement benefits.

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NEOPHOTONICS CORP 10-Q