T. Rowe Price Intermediate Tax-Free High Yield Fund Municipal securities [Member] Market conditions [Member] Credit quality [Member] Junk bonds [Member] Interest rates [Member] Callable bonds [Member] Alternative minimum tax [Member] Liquidity [Member] Active management [Member] Cybersecurity breaches [Member] T. Rowe Price Intermediate Tax-Free High Yield Fund - Investor Class T. Rowe Price Intermediate Tax-Free High Yield Fund - I Class Bloomberg U.S. Aggregate Bond Index (reflects no deduction for fees, expenses, or taxes) Bloomberg 65% High-Grade/35% High Yield Intermediate Competitive (1-17 Year) Index (reflects no deduction for fees, expenses, or taxes) Lipper High Yield Municipal Debt Funds Average T. Rowe Price Intermediate Tax-Free High Yield Fund. T. Rowe Price Intermediate Tax-Free High Yield Fund - I Class Municipal securities. Market conditions. Credit quality. Junk bonds. Interest rates. Callable bonds. Alternative minimum tax. Liquidity. Active management. Cybersecurity breaches. Bloomberg U.S. Aggregate Bond Index (reflects no deduction for fees, expenses, or taxes) Bloomberg 65% High-Grade/35% High Yield Intermediate Competitive (1-17 Year) Index (reflects no deduction for fees, expenses, or taxes) Lipper High Yield Municipal Debt Funds Average. T. Rowe Price Intermediate Tax-Free High Yield Fund - Investor Class