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Subsequent Events - Additional Information (Detail) - USD ($) $ in Thousands | 1 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Feb. 28, 2018 | Dec. 31, 2015 | Dec. 31, 2017
Subsequent Event [Line Items] |  |  |
Written-off of unamortized deferred financing costs |  | $ 2,685 |
Tranche A term loan facility [Member] | 2017 Credit Agreement [Member] |  |  |
Subsequent Event [Line Items] |  |  |
Debt instrument, interest rate |  |  | 2.51%
Subsequent Event [Member] | 5.00% Senior Notes [Member] | Redemption on or after March 15, 2018 [Member] |  |  |
Subsequent Event [Line Items] |  |  |
Debt instrument, interest rate | 5.00% |  |
Redemption date | Mar. 15, 2018 |  |
Redemption charges | $ 28,000 |  |
Senior notes, redemption premium | 20,000 |  |
Written-off of unamortized deferred financing costs | 8,000 |  |
Subsequent Event [Member] | Tranche A term loan facility [Member] | 2017 Credit Agreement [Member] |  |  |
Subsequent Event [Line Items] |  |  |
Borrowing, face amount | $ 550,000 |  |

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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=64930739&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=64930785&loc=d3e28551-108399 + Details
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- Definition Contractual interest rate for funds borrowed, under the debt 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(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Date the debt instrument was repurchased, in CCYY-MM-DD format. + References No definition available. + Details
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- Definition Amount, after accumulated amortization, of debt premium. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28541-108399 Reference 2: 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=64930739&loc=d3e28878-108400 + Details
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- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. + References No definition available. + Details
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- Definition Write-off of amounts previously capitalized as debt issuance cost in an extinguishment of debt. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.8) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
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- Details
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- Details
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- Details
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