Share-Based Compensation	3 Months Ended
Share-Based Compensation	Mar. 31, 2017
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Share-Based Compensation	2. Share-Based Compensation As of March 31, 2017, the Company has two active equity compensation plans. Under the 2015 Long-Term Incentive Plan (as amended and restated), award instruments include, but are not limited to, stock options, restricted stock awards, restricted stock units (“RSUs”), and performance-based awards. Associates and non-employee directors of the Company are eligible to become participants in the plan. The Nonemployee Directors’ Deferred Stock Compensation Plan allows non-employee directors to elect to defer receipt of all or a portion of their annual retainer in deferred stock units. The Company granted 43,385 shares of restricted stock and 221,297 RSUs during the first three months of 2017, compared to 120,376 shares of restricted stock and 247,510 RSUs during the first three months of 2016.

The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details.