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Summary of Significant Accounting Policies - Additional Information (Detail) | 9 Months Ended
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Sep. 30, 2014
Significant Accounting Policies [Line Items] |
Debt instrument maturity date | Apr. 15, 2018
Incentive Plan, mandatory holding period before awards vest | 3 years
Employee Stock Purchase Plan, percentage of common stock fair value that employees can purchase | 85.00%
Employees maximum 401(k) contribution | 100.00%
Minimum percentage of taxable income distribution to shareholders to be taxed as a REIT | 90.00%
Minimum |
Significant Accounting Policies [Line Items] |
Incentive Plan, awards vesting period | 3 years
Maximum |
Significant Accounting Policies [Line Items] |
Incentive Plan, awards vesting period | 4 years

X
- Definition Employee Stock Purchase Plan, Minimum Percentage of Common Stock Fair Value Defined to Purchase Shares By Eligible Participants + References No definition available. + Details
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- Definition Minimum Percentage of Taxable Income Distribution to Shareholders + References No definition available. + Details
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- Definition Share-Based Compensation Arrangement By Share-Based Payment Award, Award Holding Period + References No definition available. + Details
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- Details
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- Definition Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format. + References 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)(2)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Maximum percentage of employee gross pay the employee may contribute to a defined contribution plan. + References No definition available. + Details
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- Definition Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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