Employee Benefit Plans Narrative (Details)	3 Months Ended		9 Months Ended		12 Months Ended
	Mar. 31, 2017 USD ($)	Mar. 31, 2016 USD ($)	Mar. 31, 2017 USD ($) hour plan	Mar. 31, 2016 USD ($)	Jun. 30, 2012 USD ($) quarter	Jun. 30, 2016 USD ($)	Jan. 05, 2015 USD ($)	Nov. 18, 2014 USD ($)
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Multiemployer plans, number of plans			2
Defined contribution plan, hours threshold for eligibility | hour			1,000
Defined contribution plan, employer matching contribution percent			50.00%
Defined contribution plan, employer matching contribution, percent of eligible income			6.00%
Defined contribution plan, employer matching contribution, annual vesting percent			20.00%
Defined contribution plan, vesting period			5 years
Defined contribution plan, automatic vesting age			65 years
Defined contribution plan, employee vesting percent			100.00%
Defined contribution plan, employer matching contribution | $	$ 400,000	$ 400,000	$ 1,200,000	$ 1,200,000
Minimum
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Investment horizon for long-term capital market assumptions			20 years
Maximum
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Investment horizon for long-term capital market assumptions			30 years
Labor Management Pension Fund
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Withdrawal obligation | $	$ 3,600,000		$ 3,600,000		$ 4,300,000	$ 3,800,000	$ 4,900,000	$ 4,400,000
Multiemployer plan, quarterly installments for withdrawal liability | $					$ 91,000
Multiemployer plan, quarterly installments for withdrawal liability, number of quarters | quarter					80
Multiemployer Plans, Defined Contribution
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Multiemployer plans, number of plans			10
Multiemployer Plans, Pension | Multiemployer Plans, Defined Benefit Pension Plans [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Multiemployer plans, number of plans			2
Multiemployer Plans, Pension | Multiemployer Plans, Defined Contribution Pension Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Multiemployer plans, number of plans			1
Multiemployer Plans, Defined Contribution
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Multiemployer plans, number of plans			10