Employee Benefit Plans - Narrative (Details) $ in Thousands	3 Months Ended
	Sep. 30, 2019 USD ($) plan shares	Sep. 30, 2018 USD ($)
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Contribution Plan, Employer Matching Contribution, Amount	$ 700	$ 500
Local 807 Pension Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Other Commitment, Due after Fifth Year	$ 182
Other Postretirement Benefit Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Multiemployer plans, number of plans | plan	9
Restated and Amended 401K Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined contribution plan, employer matching contribution, percent of eligible income	4.00%
Defined Contribution Plan, Number of Shares Contributed | shares	55,623.73825
Defined Contribution Plan, Employer Discretionary Contribution Amount	$ 900