|
Fair Value of Financial Instruments - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2013
|
Dec. 31, 2012
|
Dec. 31, 2013
Interest Rate Swap
|
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| Fair Value of Financial Instruments [Line Items] | |||
| Long-term debt, fixed interest rate | 4.85% | 4.00% | |
| Notes payable, fair value | $ 828.7 | $ 848.1 | |
| Notes payable, carrying value | 789.9 | 774.8 | |
| Interest rate swap agreement, termination date | Jul. 01, 2020 | ||
| Fair value of derivative liability | $ 2.7 |