Significant Accounting Policies - Non-trade and notes receivable (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Jun. 30, 2019
Accounting Policies [Abstract]
Notes receivable	$ 97,370	$ 147,719
Accounts receivable, other	147,500	162,989
Total	$ 244,870	$ 310,708

The sum of amounts currently receivable other than from customers. For classified balance sheets, represents the current amount receivable, that is amounts expected to be collected within one year or the normal operating cycle, if longer.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.8)
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Name:	us-gaap_NontradeReceivablesCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant