Stock-Based Compensation	3 Months Ended
Stock-Based Compensation	Mar. 31, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock-Based Compensation	Stock-Based Compensation Under the Company's incentive plans, stock options, restricted common stock, restricted preferred stock, unrestricted common stock, restricted stock units and performance units have been granted to key employees and directors. Total compensation expense recognized was $3,906 and $2,629 for the three months ended March 31, 2014 and 2015, respectively.

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.

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