Subsequent Events - Additional Information (Detail) (USD $) In Millions, unless otherwise specified		0 Months Ended
Mar. 31, 2014	Mar. 31, 2014 8.625% Senior Notes [Member]	Apr. 16, 2014 Subsequent Event [Member] 8.625% Senior Notes [Member]
Subsequent Event [Line Items]
Amount of senior notes redeemed			$ 7.4
Interest rate on Senior Notes	5.25%	8.625%	8.625%
Senior notes redemption price, Percentage			108.30%
Pre-Tax Charge			$ 0.6

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

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

Reference 2: 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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Period Type:	instant