Credit Facilities - Narrative (Details) - USD ($)	Nov. 15, 2016	Jul. 30, 2017
Facilities, maximum borrowing capacity	$ 400,000,000
Maturity date of term loans and revolving commitments	Nov. 12, 2021
Facilities, amount outstanding	$ 247,000,000
Percentage of equity interest in direct non-U.S. subsidiaries that are included as pledged assets	65.00%
Minimum lenders represented as percentage of revolving commitments and outstanding term loans that may demand repayment in event of default	50.00%
Minimum [Member]
Interest coverage ratio	3.00
Total leverage ratio following a material acquisition	3.25
Maximum [Member]
Total leverage ratio	3.00
Total leverage ratio following a material acquisition	3.50
Base Rate [Member]
Description of variable rate basis	The "Base Rate" is equal to a fluctuating rate equal to the highest of (a) the prime rate of the administrative agent, (b) ½ of 1% above the federal funds effective rate published by the Federal Reserve Bank of New York and (c) one-month LIBOR (determined with respect to deposits in U.S. Dollars) plus 1%.
Base Rate [Member] \| Minimum [Member]
Basis spread on variable rate	0.25%
Base Rate [Member] \| Maximum [Member]
Basis spread on variable rate	1.25%
LIBOR [Member]
Basis spread on variable rate	1.00%
LIBOR [Member] \| Minimum [Member]
Basis spread on variable rate	1.25%
LIBOR [Member] \| Maximum [Member]
Basis spread on variable rate	2.25%
Federal Funds [Member]
Basis spread on variable rate	1.00%
Letter of Credit [Member]
Facilities, maximum borrowing capacity	$ 40,000,000
Facilities, amount outstanding		$ 0
Fronting fee percentage for each letter of credit issued	0.125%
Term Loans [Member]
Facilities, maximum borrowing capacity	$ 150,000,000
Facilities, amount outstanding	150,000,000
Interest rate payable at period end		2.87%
Swingline Loans [Member]
Facilities, maximum borrowing capacity	25,000,000
Facilities, amount outstanding		$ 0
Revolving Loans and Letters of Credit in Certain Foreign Currencies [Member]
Facilities, maximum borrowing capacity	40,000,000
Facilities, amount outstanding		0
Revolving Loans [Member]
Facilities, maximum borrowing capacity	250,000,000
Facilities, amount outstanding	97,000,000	$ 97,000,000
Undrawn revolving commitments	$ 153,000,000
Interest rate payable at period end		2.87%
Revolving Loans [Member] \| Minimum [Member]
Facilities, unused capacity, commitment fee percentage	0.20%
Revolving Loans [Member] \| Maximum [Member]
Facilities, unused capacity, commitment fee percentage	0.45%
Additional Term Loan Facilities Or Revolving Commitments [Member]
Facilities, maximum borrowing capacity	$ 150,000,000
United States of America, Dollars [Member]
Description of variable rate basis	(1) the Base Rate (as defined below) plus a margin ranging from 0.25% to 1.25% depending upon the Company's consolidated leverage ratio or (2) LIBOR (determined with respect to deposits in U.S. Dollars) for an interest period to be selected by the Company plus a margin ranging from 1.25% to 2.25% depending upon the Company's consolidated leverage ratio (such margin, the "Applicable Margin").

Fronting Fee Percentage For Each Letter Of Credit Issued

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- Definition

Interest Coverage Ratio

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No definition available.

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- Definition

Minimum Lenders Represented As Percentage of Revolving Commitments And Outstanding Term Loans That May Demand Repayment In Event Of Default

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No definition available.

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- Definition

Percentage of Equity Interest in Direct and Indirect Non-U.S. Subsidiaries That Are Included As Pledged Assets

+ References

No definition available.

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- Definition

Total Leverage Ratio

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No definition available.

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- Definition

Total Leverage Ratio Following A Material Acquisition

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

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- Definition

The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR.

+ References

No definition available.

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- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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- Definition

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

+ References

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- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(16))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

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- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

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- Definition

The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

+ References

No definition available.

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