For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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Present value of lessee's discounted obligation for lease payments from operating lease.

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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.

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Summary of Significant Accounting Policies - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Jun. 30, 2019	Jul. 01, 2019
Property, Plant and Equipment
% of total	100.00%	100.00%	100.00%	100.00%
Right-of-use operating lease assets	$ 19,696		$ 19,696		$ 0	$ 16,300
Operating Lease, Liability	$ 19,889		$ 19,889			$ 16,300
Accounts Receivable \| Five Customers
Property, Plant and Equipment
% of total			34.00%		28.00%