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Long-Term Debt - Additional Information (Detail) (USD $) | 12 Months Ended | 3 Months Ended | 12 Months Ended |  |  | 0 Months Ended | 12 Months Ended | 0 Months Ended
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Dec. 31, 2011 | Dec. 31, 2011 Senior Secured Notes [Member] | Dec. 31, 2013 Senior Secured Notes [Member] | Dec. 31, 2012 Senior Secured Notes [Member] | Dec. 31, 2011 Senior Secured Notes [Member] | Nov. 30, 2011 Senior Secured Notes [Member] | Dec. 31, 2013 Senior Secured Notes [Member] | Apr. 12, 2011 Senior Secured Notes [Member] Private Placement [Member] | Dec. 31, 2013 Senior Secured Notes [Member] Private Placement [Member] | Apr. 12, 2011 Senior Secured Credit Note [Member] | Apr. 12, 2011 Subordinated Note [Member]
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Issuance of private placement, principal amount |  |  |  |  |  |  |  | $ 200,000,000 |  |  |
Interest rate |  |  |  |  |  |  | 8.75% | 8.75% |  |  |
Retirement of notes, principal amount |  |  |  |  |  |  |  |  |  | 22,400,000 | 100,000,000
Cost to issue the notes | 4,565,000 |  |  |  |  |  |  | 4,600,000 |  |  |
Term of payments of interest on notes |  |  |  |  |  |  |  |  | Semi-annually |  |
Private placement date |  |  |  |  |  |  |  | Apr. 12, 2011 |  |  |
Repurchase of notes |  |  |  |  |  | 5,000,000 |  |  |  |  |
Repurchase of notes at cost |  |  |  |  |  | 4,700,000 |  |  |  |  |
Gain on repurchase notes |  | 300,000 |  |  |  |  |  |  |  |  |
Interest expense on note |  |  | 17,100,000 | 17,100,000 | 12,500,000 |  |  |  |  |  |
Interest paid on notes |  |  | $ 17,100,000 | $ 17,100,000 |  |  |  |  |  |  |

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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 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399 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=6584090&loc=d3e28878-108400 + Details
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