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Debt - Additional Information (Detail) - Jun. 30, 2015 - USD ($) | Total
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Revolving Credit Facility [Member] |
Debt Instrument [Line Items] |
Repurchase agreement maximum loan borrowing capacity | $ 25,000,000
Expiration date of repurchase agreement | Jul. 28, 2016
Debt outstanding under repurchase agreement | $ 0
Borrowing base | 0
Senior Notes due 2022 [Member] |
Debt Instrument [Line Items] |
Senior notes principal amount | $ 600,000,000
Senior notes effective interest rate | 3.97%
Senior notes maturity | Sep. 15, 2022
Senior notes interest rate | 3.95%
Frequency of senior notes payment | semi-annually in arrears on March 15 and September 15

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- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=34725769&loc=d3e28878-108400 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399 + Details
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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. + 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(a)(1)) -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 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399 + Details
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