Earnings Per Share Narrative (Details) - shares	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Outstanding stock options	2,117,051	2,100,000	2,117,051	2,100,000	1,903,177
Antidilutive securities excluded from EPS computation	500,000	0	500,000	0
Performance Vested Restricted Stock Units [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
PVRSUs excluded from EPS calculation due to performance conditions not met			207,040	218,485