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Employee Benefit Plans Narrative (Details) | 3 Months Ended | 9 Months Ended | 12 Months Ended |  |  |
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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 |  |  |  |  |

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- Definition Defined Benefit Plan, Assumptions Used Calculating Weighted Average Rate, Investment Horizon, Period + References No definition available. + Details
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- Definition Defined Contribution Plan, Automatic Vesting Age + References No definition available. + Details
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- Definition Defined Contribution Plan, Employer Matching Contribution, Amount + References No definition available. + Details
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- Definition Multiemployer Plan, Number of Plans + References No definition available. + Details
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- Definition Multiemployer Plans, Withdrawal Obligation, Monthly Payment Election, Periodic Payment Amount + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan. + References No definition available. + Details
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- Definition Amount of the obligation recognized by withdrawing from a pension or postretirement benefit plan to which two or more unrelated employers contribute where assets contributed by one participating employer may be used to provide benefits to employees of other participating employers. + References No definition available. + Details
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