Employee compensation Restricted Stock Option Awards (Details 3) (Employee Stock Option, USD $)	0 Months Ended
	Feb. 27, 2015
Employee Stock Option
Assumptions used to estimate the fair value of options granted
Risk-free interest rate (as a percent)	1.70%	[1]
Expected option life (in years)	6 years 3 months	[2]
Expected volatility (as a percent)	52.59%	[3]
Fair value per option (in dollars per share)	$ 6.15

[1] U.S. Treasury yields as of the grant date were utilized for the risk-free interest rate assumption, matching the treasury yield terms to the expected life of the option.

[2] As the Company had limited exercise history at the time of valuation relating to terminations and modifications, expected option life assumptions were developed using the simplified method in accordance with GAAP.

[3] The Company utilized its own volatility in order to develop the expected volatility.