Income Taxes - Narrative (Details) - USD ($)	3 Months Ended		6 Months Ended		12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Jun. 30, 2018
Income Tax Disclosure [Abstract]
Tax Act, Income Tax Expense (Benefit)					$ 18,000,000
Effective tax rate percent	21.00%	(6154.60%)	23.30%	1498.00%
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Pensions	$ 10,900,000		$ 10,900,000
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent			21.00%	28.10%
Income tax (benefit) expense	2,725,000	$ (16,788,000)	$ 4,012,000	$ (17,380,000)
Valuation Allowances and Reserves, Balance	1,900,000		1,900,000
Unrecognized tax benefits	$ 0		$ 0		$ 0