Fair Value of Assets and Liabilities (Details) - Jun. 30, 2015 - USD ($) $ in Thousands	Total
Travel Centers of America LLC
Fair Value of Assets and Liabilities
Shares included in investment securities	3,420,000
Quoted Prices in Active Markets for Identical Assets (Level 1) | Travel Centers of America LLC
Fair Value of Assets and Liabilities
Shares included in investment securities	3,420,000
Historical cost of securities	$ 17,407
Recurring | Fair Value
Fair Value of Assets and Liabilities
Investment securities	50,787
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value of Assets and Liabilities
Investment securities	$ 50,787