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Secured and Unsecured Debt of the Operating Partnership (Kilroy Realty, L.P. [Member])
3 Months Ended
Mar. 31, 2012
Kilroy Realty, L.P. [Member]
 
Debt Instrument [Line Items]  
Secured and Unsecured Debt of the Operating Partnership
Secured and Unsecured Debt of the Operating Partnership
Exchangeable Senior Notes
The table below summarizes the balance and significant terms of the Company's 3.25% Exchangeable Notes due April 2012 (the "3.25% Exchangeable Notes") and 4.25% Exchangeable Notes due November 2014 (the "4.25% Exchangeable Notes" and together with the 3.25% Exchangeable Notes, the "Exchangeable Notes") outstanding as of March 31, 2012 and December 31, 2011. The Company repaid the 3.25% Exchangeable Notes in April 2012 upon maturity (see Note 17).
 
3.25% Exchangeable Notes
 
4.25% Exchangeable Notes 
 
March 31,
2012
 
December 31,
2011
 
March 31,
2012
 
December 31,
2011
 
(in thousands)
Principal amount
$
148,000

 
$
148,000

 
$
172,500

 
$
172,500

Unamortized discount
(132
)
 
(924
)
 
(11,679
)
 
(12,684
)
Net carrying amount of liability component
$
147,868

 
$
147,076

 
$
160,821

 
$
159,816

Carrying amount of equity component
$33,675
 
$19,835
Maturity date
April 2012
 
November 2014
Stated coupon rate (1)(2)
3.25%
 
4.25%
Effective interest rate (3)
5.45%
 
7.13%
Exchange rate per $1,000 principal value of the Exchangeable Notes, as adjusted (4)
11.3636
 
27.8307
Exchange price, as adjusted (4)
$88.00
 
$35.93
Number of shares on which the aggregate consideration to be delivered on conversion is determined (4)
1,681,813
 
4,800,796
_____________________ 
(1)
Interest on the 3.25% Exchangeable Notes is payable semi-annually in arrears on April 15th and October 15th of each year.
(2)
Interest on the 4.25% Exchangeable Notes is payable semi-annually in arrears on May 15th and November 15th of each year.
(3)
The rate at which we record interest expense for financial reporting purposes, which reflects the amortization of the discounts on the Exchangeable Notes. This rate represents our conventional debt borrowing rate at the date of issuance.
(4)
The exchange rate, exchange price, and the number of shares to be delivered upon conversion are subject to adjustment under certain circumstances including increases in our common dividends.
Capped Call Transactions
In connection with the offerings of the Exchangeable Notes, we entered into capped call option transactions ("capped calls") to mitigate the dilutive impact of the potential conversion of the Exchangeable Notes. The table below summarizes our capped call option positions as of both March 31, 2012 and December 31, 2011. The capped calls on the 3.25% Exchangeable Notes were terminated on April 15, 2012 upon the maturity and repayment of the 3.25% Exchangeable Notes by the Company.
 
 
3.25% Exchangeable Notes(1)

 
4.25% Exchangeable  Notes(2)

Referenced shares of common stock
1,121,201

 
4,800,796

Exchange price including effect of capped calls
$
102.72

 
$
42.81

________________________
(1)
The capped calls mitigate the dilutive impact to us of the potential exchange of two-thirds of the 3.25% Exchangeable Notes into shares of common stock.
(2)
The capped calls mitigate the dilutive impact to us of the potential exchange of all of the 4.25% Exchangeable Notes into shares of common stock.
For the three months ended March 31, 2012 and 2011, the per share average trading price of the Company's common stock on the NYSE was higher than the $35.93 exchange price for the 4.25% Exchangeable Notes, as presented below:
 
March 31, 2012
 
March 31, 2011
Per share average trading price of the Company's common stock
$42.86
 
$37.96

As a result, even though the 4.25% Exchangeable Notes were not convertible as of March 31, 2012 and March 31, 2011, if they were convertible, the approximate fair value of the shares upon conversion at these dates would have been equal to approximately $208.7 million and $182.5 million, respectively, which would have exceeded the $172.5 million principal amount of the 4.25% Exchangeable Notes by approximately $36.2 million and $10.0 million, respectively. The average trading price of the Company's common stock on the NYSE for the three months ended March 31, 2012 and 2011 was below the exchange price of the 3.25% Exchangeable Notes. See Notes 15 and 16 for a discussion of the impact of the Exchangeable Notes on our diluted earnings per share and unit calculations for the periods presented.
Interest Expense for the Exchangeable Notes
The unamortized discount on the Exchangeable Notes is accreted as additional interest expense from the date of issuance through the maturity date of the applicable Exchangeable Notes. The following table summarizes the total interest expense attributable to the Exchangeable Notes based on the effective interest rates set forth above, before the effect of capitalized interest, for the three months ended March 31, 2012 and 2011:
 
Three Months Ended March 31,
 
2012
 
2011
 
(in thousands)
Contractual interest payments
$
3,035

 
$
3,035

Amortization of discount
1,797

 
1,688

Interest expense attributable to the Exchangeable Notes
$
4,832

 
$
4,723


Unsecured Term Loan Facility
In March 2012, the Operating Partnership entered into a new $150.0 million unsecured term loan (the "Unsecured Term Loan Facility"), which is included in unsecured debt, net on our consolidated balance sheets. The Unsecured Term Loan Facility bears interest at an annual rate of LIBOR plus 1.750%, which can vary depending on the Operating Partnership's credit rating, and is scheduled to mature on March 29, 2016. Under the terms of the Unsecured Term Loan Facility, we may exercise an option to extend the maturity date by one year. We may elect to borrow up to an additional $100.0 million under an accordion option, subject to bank approval. We expect to use borrowings under the Unsecured Term Loan Facility for general corporate purposes, which may include repaying other outstanding indebtedness.
Unsecured Line of Credit
The following table summarizes the balance and terms of our Credit Facility as of March 31, 2012 and December 31, 2011, respectively:
 
March 31,
2012
 
December 31,
2011
 
(in thousands)
Outstanding borrowings(1)
$

 
$
182,000

Remaining borrowing capacity
500,000

 
318,000

Total borrowing capacity(2)
$
500,000

 
$
500,000

Interest rate(3) 


 
2.05
%
Facility fee-annual rate(4)
0.350%
Maturity date(5)
August 2015
________________________
(1)
As of March 31, 2012, there were no borrowings outstanding on the Credit Facility.
(2)
We may elect to borrow, subject to bank approval, up to an additional $200.0 million under an accordion feature under the terms of the Credit Facility.
(3)
The Credit Facility interest rate was calculated based on an annual rate of LIBOR plus 1.750% as of both March 31, 2012 and December 31, 2011. No interest rate is shown as of March 31, 2012 because no borrowings were outstanding.
(4)
The facility fee is paid on a quarterly basis and is calculated based on the total borrowing capacity. In addition to the facility fee, we also incurred origination and legal costs of approximately $8.3 million that are currently being amortized through the maturity date of the Credit Facility.
(5)
Under the terms of the Credit Facility, we may exercise an option to extend the maturity date by one year.
The Company intends to borrow amounts under the Credit Facility from time to time for general corporate purposes, to fund potential acquisitions, to finance development and redevelopment expenditures, and to potentially repay long-term debt. In March 2012, we amended the Credit Facility to reduce the FMV Cap Rate (as defined in the Credit Facility agreement), which is used to calculate the fair value of our assets for certain covenants under the Credit Facility, from 7.50% to 6.75%. There were no other changes to the terms of the Credit Facility.
Debt Covenants and Restrictions
The Credit Facility, the Unsecured Term Loan Facility, the unsecured senior notes, and certain other secured debt arrangements contain covenants and restrictions requiring us to meet certain financial ratios and reporting requirements. Some of the more restrictive financial covenants include a maximum ratio of total debt to total asset value, a minimum fixed-charge coverage ratio, a minimum unsecured debt ratio, and a minimum unencumbered asset pool debt service coverage ratio. Noncompliance with one or more of the covenants and restrictions could result in the full or partial principal balance of the associated debt becoming immediately due and payable. We believe we were in compliance with all of our debt covenants as of March 31, 2012.
Debt Maturities
The following table summarizes the stated debt maturities and scheduled amortization payments, excluding debt discounts and premiums, as of March 31, 2012:
Year Ending
(in thousands)
 
Remaining 2012
$
251,758

(1) 
2013
6,373

 
2014
262,443

 
2015
357,382

 
2016
156,551

 
Thereafter
768,476

 
Total
$
1,802,983

(2) 
________________________ 
(1)
Includes the 3.25% Exchangeable Notes with an aggregate principal amount of $148.0 million that we repaid in April 2012 upon maturity (see Note 17).
(2)
Includes gross principal balance of outstanding debt before impact of all debt discounts and premiums.
Capitalized Interest and Loan Fees
The following table sets forth our gross interest expense, including debt discount/premium and loan cost amortization, net of capitalized interest, for the three months ended March 31, 2012 and 2011. The capitalized amounts are a cost of development and redevelopment, and increase the carrying value of undeveloped land and construction in progress.
 
Three Months Ended March 31,
 
2012
 
2011
 
(in thousands)
Gross interest expense
$
24,994

 
$
22,855

Capitalized interest
(3,831
)
 
(1,979
)
Interest expense
$
21,163

 
$
20,876