Employees' Profit Sharing Plan	12 Months Ended
Employees' Profit Sharing Plan	Dec. 31, 2015
Employees' Profit Sharing Plan
Employees' Profit Sharing Plan	(12) Employees’ Profit Sharing Plan The Company has a deferred profit sharing plan for full‑time employees with a minimum of one year of continuous employment. The Company’s annual contribution to the plan is based on a percentage, as determined by the Board of Directors, of income before income taxes, as defined, for the year. Allocation of the contribution among officers and employees’ accounts is based on length of service and amount of salary earned. Profit sharing costs of $3,525,000, $3,510,000 and $3,500,000 were charged to income for the years ended December 31, 2015, 2014, and 2013, respectively.

The entire disclosure for compensation costs, including compensated absences accruals, compensated absences liability, deferred compensation arrangements and income statement compensation items. Deferred compensation arrangements may include a description of an arrangement with an individual employee, which is generally an employment contract between the entity and a selected officer or key employee containing a promise by the employer to pay certain amounts at designated future dates, usually including a period after retirement, upon compliance with stipulated requirements. This type of arrangement is distinguished from broader based employee benefit plans as it is usually tailored to the employee. Disclosure also typically includes the amount of related compensation expense recognized during the reporting period, the number of shares (units) issued during the period under such arrangements, and the carrying amount as of the balance sheet date of the related liability.