Restructuring Expense (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Restructuring Cost and Reserve [Line Items]
Restructuring expense	$ 26,241	$ 0	$ 49,196	$ 0
Share-based compensation	39,557	$ 27,451	97,617	$ 114,107
Restructuring Charges [Member]
Restructuring Cost and Reserve [Line Items]
Share-based compensation	20,900		42,900
Accrued Liabilities [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	$ 14,600		$ 14,600		$ 33,000