v3.25.2
N-2
 6 Months Ended
Apr. 30, 2025
$ / shares
shares
Cover [Abstract]  
Entity Central Index Key 0001061353
Amendment Flag false
Document Type N-CSRS
Entity Registrant Name CREDIT SUISSE HIGH YIELD BOND FUND
General Description of Registrant [Abstract]  
Investment Objectives and Practices [Text Block] The Fund’s principal investment objective is to seek high current income. The Fund also will seek capital appreciation as a secondary objective, to the extent consistent with its objective of seeking high current income.
NAV Per Share $ 2.13
Capital Stock, Long-Term Debt, and Other Securities [Abstract]  
Other Security, Description [Text Block] the Fund had outstanding loans of securities to certain approved brokers for which the Fund received collateral:
Common Shares [Member]  
General Description of Registrant [Abstract]  
Share Price $ 2.03
Capital Stock, Long-Term Debt, and Other Securities [Abstract]  
Outstanding Security, Title [Text Block] shares outstanding
Outstanding Security, Not Held [Shares] | shares 103,609,624
Beneficial Interest [Member]  
Capital Stock, Long-Term Debt, and Other Securities [Abstract]  
Outstanding Security, Title [Text Block] The Fund has one class of shares of beneficial interest, par value $0.001 per share; an unlimited number of shares are authorized.