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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Name:	us-gaap_EquityClassOfTreasuryStockLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Treasury Stock - Narrative (Details) - shares	May 03, 2018	Mar. 31, 2018
Equity, Class of Treasury Stock [Line Items]
Shares available for repurchase (in shares)		0
Subsequent Event
Equity, Class of Treasury Stock [Line Items]
Shares authorized under share repurchase plan (up to) (in shares)	100,000