Discontinued Operations - Additional Information (Detail)	Jun. 30, 2020
Segment Discontinued Operations [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations[LineItems]
Disposal group, Including discontinued operation, Description and timing of disposal	As of June 30, 2020 all the contracts had been executed and the division had ceased operation

Description of the facts and circumstances leading to the completed or expected disposal, and the manner and timing of that disposal.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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-Publisher FASB
-Name Accounting Standards Codification
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Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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-Section 50
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-URI http://asc.fasb.org/extlink&oid=109222650&loc=d3e1361-107760

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration