Restructuring Plans (Details)			3 Months Ended	23 Months Ended	33 Months Ended
	Feb. 21, 2017	Feb. 05, 2015 USD ($)	Sep. 30, 2017 USD ($)	Dec. 31, 2016 USD ($)	Mar. 31, 2017 USD ($)	Jun. 30, 2017 USD ($)	Jun. 30, 2014 USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring charges incurred to date			$ 2,500,000
Effective Date-DSD Restructuring Plan	Feb. 21, 2017
Corporate Relocation Plan
Restructuring Cost and Reserve [Line Items]
Payments			89,000		$ 31,612,000
Restructuring, number of positions affected		350
Restructuring charges			0		35,555,000
Restructuring charges settled without cash			0		3,731,000
Expected restructuring and related costs				$ 31,000,000
Restructuring charges incurred to date			31,500,000
Restructuring Reserve			212,000			$ 301,000	$ 0
DSD Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Payments			2,200,000
Employee-related
Restructuring Cost and Reserve [Line Items]
Payments			1,100,000
Employee-related | Corporate Relocation Plan
Restructuring Cost and Reserve [Line Items]
Payments			89,000		17,140,000
Restructuring charges			0		17,352,000
Restructuring charges settled without cash			0		0
Expected restructuring and related costs		$ 18,000,000
Restructuring charges incurred to date			17,100,000
Restructuring Reserve			212,000			301,000	0
Employee-related | DSD Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Restructuring charges			24,000
Restructuring Reserve			300,000
Facility Closing | Corporate Relocation Plan
Restructuring Cost and Reserve [Line Items]
Payments			0		7,048,000
Restructuring charges			0		10,779,000
Restructuring and Related Cost, Accelerated Depreciation				$ 2,300,000
Restructuring charges settled without cash			0		3,731,000
Expected restructuring and related costs		5,000,000
Restructuring charges incurred to date			7,000,000
Restructuring Reserve			0			0	0
Other Restructuring
Restructuring Cost and Reserve [Line Items]
Payments			1,400,000
Other Restructuring | Corporate Relocation Plan
Restructuring Cost and Reserve [Line Items]
Payments			0		7,424,000
Restructuring charges			0		7,424,000
Restructuring charges settled without cash			0		$ 0
Expected restructuring and related costs		$ 8,000,000
Restructuring charges incurred to date			7,400,000
Restructuring Reserve			0			$ 0	$ 0
Other Restructuring | DSD Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Restructuring charges			$ 100,000