Stockholders' Equity - Additional Information (Detail) (USD $)
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3 Months Ended | 12 Months Ended | 3 Months Ended | 1 Months Ended | |||||||
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Mar. 31, 2014
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Mar. 31, 2013
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Mar. 31, 2013
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Dec. 31, 2013
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Mar. 31, 2014
Common Stock Redemption
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Mar. 31, 2013
Common Stock Redemption
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May 01, 2014
Subsequent Event
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Apr. 01, 2014
Subsequent Event
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Apr. 30, 2014
Subsequent Event
Common Stock Redemption
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Mar. 31, 2014
Reinvestment Plan
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Dec. 31, 2013
Reinvestment Plan
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Stockholders Equity [Line Items] | |||||||||||
Aggregate offering proceeds received from public offering | $ 659,100,000 | $ 568,900,000 | $ 12,700,000 | $ 9,400,000 | |||||||
Remaining common stock available for sale and under Reinvestment plan | 65,900,000 | 57,000,000 | 1,300,000 | 1,000,000 | |||||||
Cash distribution declared | 6,147,000 | 2,100,000 | 14,170,000 | ||||||||
Stock distributions, shares | 454,950 | 157,449 | 0.0025 | 0.0025 | |||||||
Percentage of cash distribution considered taxable | 20.00% | ||||||||||
Percentage of cash distribution considered as return of capital | 80.00% | 100.00% | |||||||||
Amounts distributed to stockholders | 0 | 0 | |||||||||
Redemption of common stock, shares | 28,343 | 23,565 | |||||||||
Redemption of common stock, per share | $ 9.13 | $ 9.30 | |||||||||
Redemptions of common stock | 258,000 | 827,000 | 300,000 | 200,000 | |||||||
Redemption of shares paid | $ 200,000 |