Adjustments To Additional Paid In Capital Convertible Debt With Conversion Feature, Gross

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- Definition

Adjustments To Additional Paid In Capital Convertible Debt With Conversion Feature, Reduction

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Debt Instrument, Convertible, Portion of Principal

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Debt Instrument, Convertible, Threshold Consecutive Business Days

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Amount of noncash expense included in interest expense to amortize debt discount and premium associated with the related debt instruments. Excludes amortization of financing costs. Alternate captions include noncash interest expense.

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Amount of noncash expense included in interest expense to issue debt and obtain financing associated with the related debt instruments. Alternate captions include noncash interest expense.

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The number of shares converted in a noncash (or part noncash) transaction. Noncash is defined as transactions during a period that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

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Including the current and noncurrent portions, carrying amount of debt identified as being convertible into another form of financial instrument (typically the entity's common stock) as of the balance sheet date, which originally required full repayment more than twelve months after issuance or greater than the normal operating cycle of the company.

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The price per share of the conversion feature embedded in the debt instrument.

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Remaining amortization period for discount on the liability component of convertible debt which may be settled in cash upon conversion, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Threshold period of specified consecutive trading days within which common stock price to conversion price of convertible debt instruments must exceed threshold percentage for a specified number of trading days to trigger conversion feature, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Minimum percentage of common stock price to conversion price of convertible debt instruments to determine eligibility of conversion.

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No definition available.

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Threshold number of specified trading days that common stock price to conversion price of convertible debt instruments must exceed threshold percentage within a specified consecutive trading period to trigger conversion feature.

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- Definition

Face (par) amount of debt instrument at time of issuance.

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Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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

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- Definition

Percentage of principal amount of debt redeemed.

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No definition available.

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The amount of debt discount that was originally recognized at the issuance of the instrument that has yet to be amortized.

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- Definition

Net amount of long-term deferred finance costs capitalized at the end of the reporting period.

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Amount of the cost of borrowed funds accounted for as interest expense.

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Amount of the cost of borrowed funds accounted for as interest expense for debt.

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Cash paid for expenses incurred during underwriting activities (the process to review insurance applications, evaluate risks, accept or reject applications, and determine the premiums to be charged) for insurance companies.

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The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer.

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Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

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Debt Unsecured Senior Notes (Details) (USD $)	3 Months Ended		9 Months Ended		0 Months Ended	3 Months Ended		0 Months Ended
Debt Unsecured Senior Notes (Details) (USD $)	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Aug. 15, 2014 Convertible Debt [Member] Exchangeable Senior Notes due August 15, 2019 [Member]	Sep. 30, 2014 Convertible Debt [Member] Exchangeable Senior Notes due August 15, 2019 [Member]	Aug. 15, 2014 Convertible Debt [Member] Exchangeable Senior Notes due August 15, 2019 [Member]	Aug. 15, 2014 Covenant Scenario One [Member] Convertible Debt [Member] Exchangeable Senior Notes due August 15, 2019 [Member] D	Aug. 15, 2014 Covenant Scenario Two [Member] Convertible Debt [Member] Exchangeable Senior Notes due August 15, 2019 [Member]
Debt Instrument [Line Items]
Proceeds from credit facility			$ 295,600,000
Debt Instrument, Face Amount							250,000,000
Stated Rate							2.625%
Proceeds from mortgage notes payable			0		246,900,000
Debt Instrument, Convertible, Threshold Percentage of Stock Price Trigger								130.00%	98.00%
Debt Instrument, Convertible, Threshold Trading Days								20
Debt Instrument, Convertible, Threshold Consecutive Trading Days								30 days	5 days
Debt Instrument, Convertible, Threshold Consecutive Business Days									5 days
Conversion of Stock, Shares Converted					51.4059
Debt Instrument, Convertible, Portion of Principal							1,000
Debt Instrument, Convertible, Conversion Price							$ 19.45
Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed					100.00%
Debt Instrument, Interest Rate, Effective Percentage							3.80%
Senior unsecured notes	236,999,000		236,999,000				236,600,000
Adjustments To Additional Paid In Capital Convertible Debt With Conversion Feature, Gross					13,400,000
Debt Instrument, Convertible, Remaining Discount Amortization Period					5 years
Debt Instrument, Unamortized Discount						13,100,000
Payments for Underwriting Expense					3,100,000
Deferred Finance Costs, Noncurrent, Net							2,900,000
Adjustments To Additional Paid In Capital Convertible Debt With Conversion Feature, Reduction						200,000
Interest Expense, Debt						1,300,000
Interest Expense	17,674,000		46,640,000			900,000
Amortization of Debt Discount (Premium)						300,000
Amortization of Financing Costs	$ 2,700,000	$ 2,000,000	$ 5,100,000	$ 5,600,000		$ 100,000