Debt (Narrative) (Detail 2) - 2018 Amendment - Subsequent event $ in Thousands	1 Months Ended
May 03, 2018 USD ($)
ABR Loans
Line of Credit Facility [Line Items]
Debt interest rate	1.50%
Eurodollar Loan
Line of Credit Facility [Line Items]
Debt interest rate	2.50%
Revolving Bank Loans
Line of Credit Facility [Line Items]
Available revolving commitment	$ 100,000
Dividend restrictions	<div><font style="font-family: times new roman,times;" size="2">Restricting the amount of dividends or distributions the Company may make to its shareholders to no more than $0.01 per share for the fiscal quarter ending on June 30, 2018 and, during the Limitation Period, restricting the Company from making any other dividends or distributions to its shareholders thereafter</font></div>
Undrawn revolving commitments \| ABR Loans
Line of Credit Facility [Line Items]
Commitment fee percentage	0.40%

Contractual interest rate for funds borrowed, under the debt agreement.

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(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.

+ References

No definition available.

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- Definition

Description of restrictions on the entity's ability to pay dividends as required by the terms of the credit facility.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(e)(1))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

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- Definition

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.

+ References

No definition available.

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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

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 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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