Restructuring Charges (Narrative) (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended		12 Months Ended
	Jan. 06, 2017	Sep. 30, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Jun. 30, 2016	Jun. 30, 2015
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve, Current				$ 5,600		$ 14,600
Restructuring Reserve				8,400		17,700
Restructuring Charges			$ 10,400	300	$ 25,200
2015 Margin Acceleration Program [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges		$ 1,600				27,800	$ 20,000
Restructuring Reserve, Accrual Adjustment		$ (1,300)
Two Thousand Fifteen Restructuring Plan [Member] [Domain]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve						10,500
Employee Severance [Member] | Two Thousand Fifteen Restructuring Plan [Member] [Domain]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve				3,200
Restructuring Charges				(500)
Facilities Related Charges [Member] | Two Thousand Fifteen Restructuring Plan [Member] [Domain]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve				5,100		$ 7,100
Restructuring Charges				$ 800
Minimum [Member] | 2017 Restructing Plan [Member]
Restructuring Cost and Reserve [Line Items]
Subsequent Event, Description	25
Maximum [Member] | 2017 Restructing Plan [Member]
Restructuring Cost and Reserve [Line Items]
Subsequent Event, Description	35