Year of expiration or mandatory redemption of the financial instrument issued in exchange for the original debt being converted in a noncash or part noncash transaction, in CCYY format.

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- Definition

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

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Amount of lessee's right to use underlying asset under operating lease.

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Price of a single share of a number of saleable stocks of a company.

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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.

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The addition amount of loan with zero interest rates.

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Agreement Extension Period

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States the notice requirement (for example, 30 to 60 days) is required to terminate its agreement.

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The increase (decrease) of registered capital.

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Amount of loan with zero interest rates.

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- Definition

Long-term pre-tax operating income as a percentage of net sales.

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How many years each power of attorney will remain in force.

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Related Party Agreement Expiration Date

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Organization and nature of operations - Additional Information (Details) ¥ / shares in Units, $ in Thousands, ¥ in Millions	1 Months Ended	12 Months Ended
	May 31, 2011 CNY (¥)	Dec. 31, 2020 CNY (¥)	Dec. 31, 2020 USD ($)	Dec. 31, 2020 ¥ / shares	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Variable Interest Entity [Line Items]
Number of year's power of attorney retained		10 years
Percentage of pre-tax operating profit		80.00%
Right-of-use assets \| $			$ 1,954		$ 8,747	$ 11,819
Lease liabilities \| $			$ 1,988		$ 8,825
Giganology Shenzhen
Variable Interest Entity [Line Items]
Termination of agreement, notice period		30 days
Automated extended period of agreement		10 years
Agreement expiration date		2022
Agreement between Giganology Shenzhen and Mr. Sean Shenglong Zou [Member]
Variable Interest Entity [Line Items]
Additional interest-free loans		¥ 20
Increase in registered capital		30
Agreement between Giganology Shenzhen and Shareholders of Shenzhen Xunlei [Member]
Variable Interest Entity [Line Items]
Interest-free loans		¥ 9
Agreement between Giganology Shenzhen and Shenzhen Xunlei [Member]
Variable Interest Entity [Line Items]
Increase in registered capital	¥ 20
Term agreement expiration year		2016
Call Option Agreement [Member] \| Giganology Shenzhen
Variable Interest Entity [Line Items]
Agreement expiration date		2022
Outstanding share, purchase price per share \| ¥ / shares				¥ 1
Exclusive Technology Support and Services Agreement [Member]
Variable Interest Entity [Line Items]
Percentage of pre-tax operating profit		20.00%
Exclusive Technology Support and Services Agreement [Member] \| Giganology Shenzhen
Variable Interest Entity [Line Items]
Term agreement expiration year		2025
Exclusive Technology Consulting and Training Agreement [Member]
Variable Interest Entity [Line Items]
Percentage of pre-tax operating profit		20.00%
Software and Proprietary Technology License Contract [Member]
Variable Interest Entity [Line Items]
Percentage of pre-tax operating profit		40.00%