| Form N-CSR Cover | 6 Months Ended |
| May 31, 2024 | |
| Shareholder Report [Line Items] | |
| Document Type | N-CSRS |
| Amendment Flag | false |
| Registrant Name | PUTNAM NEW YORK TAX EXEMPT INCOME FUND |
| Entity Central Index Key | 0000719712 |
| Entity Investment Company Type | N-1A |
| Document Period End Date | May 31, 2024 |
| Shareholder Report | 6 Months Ended | |
| May 31, 2024 USD ($) $ / shares | ||
| Shareholder Report [Line Items] | ||
| Document Type | N-CSRS | |
| Amendment Flag | false | |
| Registrant Name | PUTNAM NEW YORK TAX EXEMPT INCOME FUND | |
| Entity Central Index Key | 0000719712 | |
| Entity Investment Company Type | N-1A | |
| Document Period End Date | May 31, 2024 | |
| Class A | ||
| Shareholder Report [Line Items] | ||
| Fund Name | Putnam New York Tax Exempt Income Fund | |
| Class Name | Class A | |
| Trading Symbol | PTEIX | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.franklintempleton.com/regulatory-fund-documents . You can also request this information by contacting us at (800) 225-1581 . | |
| Additional Information Phone Number | (800) 225-1581 | |
| Additional Information Website | https://www.franklintempleton.com/regulatory-fund-documents | |
| Expenses [Text Block] | WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS? (based on a hypothetical $10,000 investment) Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment † Class A $41 0.82% | [1] |
| Expenses Paid, Amount | $ 41 | |
| Expense Ratio, Percent | 0.82% | |
| Net Assets | $ 762,112,717 | |
| Holdings Count | $ / shares | 351 | [2] |
| Investment Company Portfolio Turnover | 6% | |
| Additional Fund Statistics [Text Block] | KEY FUND STATISTICS (as of May 31, 2024) Total Net Assets $762,112,717 Total Number of Portfolio Holdings * 351 Portfolio Turnover Rate 6% | [2] |
| Holdings [Text Block] | [3] | |
| Class B | ||
| Shareholder Report [Line Items] | ||
| Fund Name | Putnam New York Tax Exempt Income Fund | |
| Class Name | Class B | |
| Trading Symbol | PEIBX | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.franklintempleton.com/regulatory-fund-documents . You can also request this information by contacting us at (800) 225-1581 . | |
| Additional Information Phone Number | (800) 225-1581 | |
| Additional Information Website | https://www.franklintempleton.com/regulatory-fund-documents | |
| Expenses [Text Block] | WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS? (based on a hypothetical $10,000 investment) Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment † Class B $72 1.42% | [4] |
| Expenses Paid, Amount | $ 72 | |
| Expense Ratio, Percent | 1.42% | |
| Net Assets | $ 762,112,717 | |
| Holdings Count | $ / shares | 351 | [5] |
| Investment Company Portfolio Turnover | 6% | |
| Additional Fund Statistics [Text Block] | KEY FUND STATISTICS (as of May 31, 2024) Total Net Assets $762,112,717 Total Number of Portfolio Holdings * 351 Portfolio Turnover Rate 6% | [5] |
| Holdings [Text Block] | [6] | |
| Class C | ||
| Shareholder Report [Line Items] | ||
| Fund Name | Putnam New York Tax Exempt Income Fund | |
| Class Name | Class C | |
| Trading Symbol | PNNCX | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.franklintempleton.com/regulatory-fund-documents . You can also request this information by contacting us at (800) 225-1581 . | |
| Additional Information Phone Number | (800) 225-1581 | |
| Additional Information Website | https://www.franklintempleton.com/regulatory-fund-documents. | |
| Expenses [Text Block] | WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS? (based on a hypothetical $10,000 investment) Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment † Class C $79 1.57% | [7] |
| Expenses Paid, Amount | $ 79 | |
| Expense Ratio, Percent | 1.57% | |
| Net Assets | $ 762,112,717 | |
| Holdings Count | $ / shares | 351 | [8] |
| Investment Company Portfolio Turnover | 6% | |
| Additional Fund Statistics [Text Block] | KEY FUND STATISTICS (as of May 31, 2024) Total Net Assets $762,112,717 Total Number of Portfolio Holdings * 351 Portfolio Turnover Rate 6% | [8] |
| Holdings [Text Block] | [9] | |
| Class R6 | ||
| Shareholder Report [Line Items] | ||
| Fund Name | Putnam New York Tax Exempt Income Fund | |
| Class Name | Class R6 | |
| Trading Symbol | PNYRX | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.franklintempleton.com/regulatory-fund-documents . You can also request this information by contacting us at (800) 225-1581 . | |
| Additional Information Phone Number | (800) 225-1581 | |
| Additional Information Website | https://www.franklintempleton.com/regulatory-fund-documents. | |
| Expenses [Text Block] | WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS? (based on a hypothetical $10,000 investment) Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment † Class R6 $28 0.56% | [10] |
| Expenses Paid, Amount | $ 28 | |
| Expense Ratio, Percent | 0.56% | |
| Net Assets | $ 762,112,717 | |
| Holdings Count | $ / shares | 351 | [11] |
| Investment Company Portfolio Turnover | 6% | |
| Additional Fund Statistics [Text Block] | KEY FUND STATISTICS (as of May 31, 2024) Total Net Assets $762,112,717 Total Number of Portfolio Holdings * 351 Portfolio Turnover Rate 6% | [11] |
| Holdings [Text Block] | [12] | |
| Class Y | ||
| Shareholder Report [Line Items] | ||
| Fund Name | Putnam New York Tax Exempt Income Fund | |
| Class Name | Class Y | |
| Trading Symbol | PNYYX | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.franklintempleton.com/regulatory-fund-documents . You can also request this information by contacting us at (800) 225-1581 . | |
| Additional Information Phone Number | (800) 225-1581 | |
| Additional Information Website | https://www.franklintempleton.com/regulatory-fund-documents. | |
| Expenses [Text Block] | WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS? (based on a hypothetical $10,000 investment) Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment † Class Y $28 0.57% | [13] |
| Expenses Paid, Amount | $ 28 | |
| Expense Ratio, Percent | 0.57% | |
| Net Assets | $ 762,112,717 | |
| Holdings Count | $ / shares | 351 | [14] |
| Investment Company Portfolio Turnover | 6% | |
| Additional Fund Statistics [Text Block] | KEY FUND STATISTICS (as of May 31, 2024) Total Net Assets $762,112,717 Total Number of Portfolio Holdings * 351 Portfolio Turnover Rate 6% | [14] |
| Holdings [Text Block] | [15] | |
| [1] † Annualized. * Includes derivatives, if applicable. Cash and Equivalents, if any, represent the market value weights of cash, derivatives, short-term securities, and other unclassified assets in the portfolio. Holdings and allocations may vary over time. † Annualized. * Includes derivatives, if applicable. Cash and Equivalents, if any, represent the market value weights of cash, derivatives, short-term securities, and other unclassified assets in the portfolio. Holdings and allocations may vary over time. † Annualized. * Includes derivatives, if applicable. Cash and Equivalents, if any, represent the market value weights of cash, derivatives, short-term securities, and other unclassified assets in the portfolio. Holdings and allocations may vary over time. † Annualized. * Includes derivatives, if applicable. Cash and Equivalents, if any, represent the market value weights of cash, derivatives, short-term securities, and other unclassified assets in the portfolio. Holdings and allocations may vary over time. † Annualized. * Includes derivatives, if applicable. Cash and Equivalents, if any, represent the market value weights of cash, derivatives, short-term securities, and other unclassified assets in the portfolio. Holdings and allocations may vary over time. | ||
| Shareholder Report, Holdings (Details) | May 31, 2024 |
| Class A | Education [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 21.30% |
| Class A | Transportation [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 17.40% |
| Class A | Special tax [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 13.30% |
| Class A | Health Care [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.10% |
| Class A | Other [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.30% |
| Class A | Utilities [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.50% |
| Class A | Tobacco [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.50% |
| Class A | Housing [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.30% |
| Class A | Local General Obligation [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.80% |
| Class A | State General Obligation [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.30% |
| Class A | Financials [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.20% |
| Class A | Industrials [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.40% |
| Class A | Cash and Equivalents [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.60% |
| Class B | Education [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 21.30% |
| Class B | Transportation [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 17.40% |
| Class B | Special tax [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 13.30% |
| Class B | Health Care [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.10% |
| Class B | Other [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.30% |
| Class B | Utilities [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.50% |
| Class B | Tobacco [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.50% |
| Class B | Housing [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.30% |
| Class B | Local General Obligation [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.80% |
| Class B | State General Obligation [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.30% |
| Class B | Financials [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.20% |
| Class B | Industrials [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.40% |
| Class B | Cash and Equivalents [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.60% |
| Class C | Education [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 21.30% |
| Class C | Transportation [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 17.40% |
| Class C | Special tax [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 13.30% |
| Class C | Health Care [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.10% |
| Class C | Other [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.30% |
| Class C | Utilities [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.50% |
| Class C | Tobacco [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.50% |
| Class C | Housing [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.30% |
| Class C | Local General Obligation [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.80% |
| Class C | State General Obligation [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.30% |
| Class C | Financials [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.20% |
| Class C | Industrials [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.40% |
| Class C | Cash and Equivalents [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.60% |
| Class R6 | Education [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 21.30% |
| Class R6 | Transportation [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 17.40% |
| Class R6 | Special tax [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 13.30% |
| Class R6 | Health Care [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.10% |
| Class R6 | Other [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.30% |
| Class R6 | Utilities [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.50% |
| Class R6 | Tobacco [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.50% |
| Class R6 | Housing [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.30% |
| Class R6 | Local General Obligation [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.80% |
| Class R6 | State General Obligation [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.30% |
| Class R6 | Financials [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.20% |
| Class R6 | Industrials [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.40% |
| Class R6 | Cash and Equivalents [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.60% |
| Class Y | Education [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 21.30% |
| Class Y | Transportation [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 17.40% |
| Class Y | Special tax [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 13.30% |
| Class Y | Health Care [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.10% |
| Class Y | Other [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.30% |
| Class Y | Utilities [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.50% |
| Class Y | Tobacco [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.50% |
| Class Y | Housing [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.30% |
| Class Y | Local General Obligation [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.80% |
| Class Y | State General Obligation [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.30% |
| Class Y | Financials [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.20% |
| Class Y | Industrials [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.40% |
| Class Y | Cash and Equivalents [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.60% |
