Face (par) amount of debt instrument at time of issuance.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28551-108399

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400

Name:	us-gaap_DebtInstrumentFaceAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Debt, Previous Credit Agreement (Details) $ in Millions, ¥ in Billions	3 Months Ended
	Mar. 31, 2019	Oct. 09, 2014 USD ($)	Oct. 09, 2014 JPY (¥)
Term Loan Facility [Member]
Debt [Abstract]
Original principal amount		$ 127.5
Term of loan	5 years
Japanese Yen Term Loan Facility [Member]
Debt [Abstract]
Original principal amount \| ¥			¥ 6.6
Term of loan	5 years
Revolving Credit Facility [Member]
Debt [Abstract]
Borrowing capacity		$ 187.5
Term of loan	5 years