Debt	12 Months Ended
Dec. 31, 2016
Debt
Debt	8.Debt The Company has a Revolving Credit Agreement (the “Credit Agreement”) with Citizens Bank, NA ((formerly known as RBS Citizens, N.A. (“Citizens Bank”)). The Credit Agreement provides a $30,000 revolving credit facility with an accordion feature allowing for future expansion of the committed amount up to $50,000. Loans under the credit facility bear interest at the Company’s option at either (i) the LIBOR rate plus 1.25% per annum or (ii) the higher of Citizens Bank prime rate or 0.5% above the federal funds rate plus 1.25% per annum. Interest only is payable prior to maturity. The Credit Agreement has a maturity date of August 14, 2018. The Company’s obligations under the credit facility are secured by pledges of its assets and the capital stock of its operating subsidiaries. The credit facility is guaranteed by the Company’s non‑insurance company subsidiaries. The credit facility contains covenants including requirements to maintain minimum risk‑based capital ratios and statutory surplus of Safety Insurance Company as well as limitations or restrictions on indebtedness, liens, and other matters. As of December 31, 2016, the Company was in compliance with all covenants. In addition, the credit facility includes customary events of default, including a cross‑default provision permitting the lenders to accelerate the facility if the Company (i) defaults in any payment obligation under debt having a principal amount in excess of $10,000 or (ii) fails to perform any other covenant permitting acceleration of all such debt. The Company had no amounts outstanding on its credit facility at December 31, 2016 or 2015. The credit facility commitment fee included in interest expense was computed at a rate of 0.25% per annum on the $30,000 commitment at December 31, 2016 and 2015. The Company became a member of the Federal Home Loan Bank of Boston (“FHLB-Boston”) during the quarter ended September 30, 2014. Membership in the FHLB-Boston allows the Company to borrow money at competitive interest rates provided the loan is collateralized by specific U.S Government residential mortgage backed securities. At December 31, 2016, the Company has the ability to borrow approximately $180,699 using eligible invested assets that would be used as collateral. The Company has no amounts outstanding from the FHLB-Boston at December 31, 2016.

8.Debt

The Company has a Revolving Credit Agreement (the “Credit Agreement”) with Citizens Bank, NA ((formerly known as RBS Citizens, N.A. (“Citizens Bank”)). The Credit Agreement provides a $30,000 revolving credit facility with an accordion feature allowing for future expansion of the committed amount up to $50,000. Loans under the credit facility bear interest at the Company’s option at either (i) the LIBOR rate plus 1.25% per annum or (ii) the higher of Citizens Bank prime rate or 0.5% above the federal funds rate plus 1.25% per annum. Interest only is payable prior to maturity. The Credit Agreement has a maturity date of August 14, 2018.

The Company’s obligations under the credit facility are secured by pledges of its assets and the capital stock of its operating subsidiaries. The credit facility is guaranteed by the Company’s non‑insurance company subsidiaries. The credit facility contains covenants including requirements to maintain minimum risk‑based capital ratios and statutory surplus of Safety Insurance Company as well as limitations or restrictions on indebtedness, liens, and other matters. As of December 31, 2016, the Company was in compliance with all covenants. In addition, the credit facility includes customary events of default, including a cross‑default provision permitting the lenders to accelerate the facility if the Company (i) defaults in any payment obligation under debt having a principal amount in excess of $10,000 or (ii) fails to perform any other covenant permitting acceleration of all such debt.

The Company had no amounts outstanding on its credit facility at December 31, 2016 or 2015. The credit facility commitment fee included in interest expense was computed at a rate of 0.25% per annum on the $30,000 commitment at December 31, 2016 and 2015.

The Company became a member of the Federal Home Loan Bank of Boston (“FHLB-Boston”) during the quarter ended September 30, 2014. Membership in the FHLB-Boston allows the Company to borrow money at competitive interest rates provided the loan is collateralized by specific U.S Government residential mortgage backed securities. At December 31, 2016, the Company has the ability to borrow approximately $180,699 using eligible invested assets that would be used as collateral. The Company has no amounts outstanding from the FHLB-Boston at December 31, 2016.