Stock-Based Compensation (Details 2) - Nonvested shares	1 Months Ended
	May. 31, 2015	Feb. 28, 2015
Time-Based | Employee [Member]
Stock-based compensation
Performance period	3 years
2013 Plan | Performance-Based | Certain members of senior management
Stock-based compensation
Performance period		3 years
First Vesting Period | Time-Based | Employee [Member]
Stock-based compensation
Vesting (as a percent)	25.00%
First Vesting Period | 2013 Plan | Time-Based | Certain members of senior management
Stock-based compensation
Vesting (as a percent)		33.00%
Second Vesting Period | Time-Based | Employee [Member]
Stock-based compensation
Vesting (as a percent)	25.00%
Second Vesting Period | 2013 Plan | Time-Based | Certain members of senior management
Stock-based compensation
Vesting (as a percent)		33.00%
Third Vesting Period | Time-Based | Employee [Member]
Stock-based compensation
Vesting (as a percent)	25.00%
Third Vesting Period | 2013 Plan | Time-Based | Certain members of senior management
Stock-based compensation
Vesting (as a percent)		33.00%
Fourth Vesting Period | Time-Based | Employee [Member]
Stock-based compensation
Vesting (as a percent)	25.00%