Share Based Compensation (Details 3) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2015 USD ($) $ / shares shares
Range 5 [Member]
Stock Options Outstanding Summary [Line Items]
Exercise Price, Lower Range Limit	$ 50.15
Exercise Price, Upper Range Limit	$ 63.05
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest [Abstract]
Number Outstanding | shares	103,000
Weighted Average Remaining Contractual Life	7 months 6 days
Weighted Average Exercise Price	$ 55.37
Aggregate Intrinsic Value | $	$ 0
Range 6 [Member]
Stock Options Outstanding Summary [Line Items]
Exercise Price, Lower Range Limit	$ 49.05
Exercise Price, Upper Range Limit	$ 62.23
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest [Abstract]
Number Outstanding | shares	268,000
Weighted Average Remaining Contractual Life	1 year 3 months 14 days
Weighted Average Exercise Price	$ 53.96
Aggregate Intrinsic Value | $	$ 0
Range 7 [Member]
Stock Options Outstanding Summary [Line Items]
Exercise Price, Lower Range Limit	$ 51.6
Exercise Price, Upper Range Limit	$ 98.87
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest [Abstract]
Number Outstanding | shares	148,000
Weighted Average Remaining Contractual Life	2 years 5 months 12 days
Weighted Average Exercise Price	$ 70.61
Aggregate Intrinsic Value | $	$ 0