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Investments and Fair Value Measurements | 12 Months Ended
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Dec. 31, 2011
Equity Method Investments Disclosure [Abstract] |
Fair Value Disclosures [Text Block] | Investments and Fair Value Measurements All of the Company’s short-term and long-term investment balances at December 31, 2011 and December 31, 2010 were invested in tax free, auction rate student ("ARS") loan educational bonds that are classified as available-for-sale. The investments typically have an interest reset provision of 35 days with contractual maturities that currently range from December 1, 2031 to May 1, 2040. At the reset date, the Company has the option to roll the investments and reset the interest rate or sell the investments in an auction. The Company receives the par value of the investment plus accrued interest on the reset date if the underlying investment is sold. As of December 31, 2011, 100% of ARS holdings, at par, were backed by the U.S. government and held AAA (or equivalent) ratings from recognized rating agencies. Municipal bonds are classified as held to maturity, are carried at amortized cost and are included in other assets per the consolidated balance sheet. Differences between amortized cost and fair value of municipal bonds are not considered material. Auction rate securities are classified as available-for-sale and therefore are carried at fair value as estimated using Level 3 fair value inputs. The amortized cost and fair value of available-for-sale investments at December 31, 2011 and December 31, 2010 were as follows:
|  |  |  | Gross |  | Gross |  |
|  | Amortized |  | Unrealized |  | Unrealized |  | Fair
|  | Cost |  | Gains |  | Losses |  | Value
|  | ( in thousands)
December 31, 2011 |  |
Current: |  |  |  |  |  |  |  |
Auction rate student loan educational bonds |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |
|  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |
Long-term: |  |  |  |  |  |  |  |  |  |  |  |
Auction rate student loan educational bonds |  | $ | 53,650 |  |  | $ | — |  |  | $ | 3,081 |  |  | $ | 50,569 |
|  | $ | 53,650 |  |  | $ | — |  |  | $ | 3,081 |  |  | $ | 50,569 |
|  | $ | 53,650 |  |  | $ | — |  |  | $ | 3,081 |  |  | $ | 50,569 |
December 31, 2010 |  |  |  |  |  |  |  |
Current: |  |  |  |  |  |  |  |
Auction rate student loan educational bonds |  | $ | 8,300 |  |  | $ | — |  |  | $ | — |  |  | 8,300 |
|  | $ | 8,300 |  |  | — |  |  | $ | — |  |  | $ | 8,300 |
Long-term: |  |  |  |  |  |  |  |  |  |  |  |
Auction rate student loan educational bonds |  | $ | 83,475 |  |  | $ | — |  |  | $ | 3,081 |  |  | $ | 80,394 |
|  | $ | 83,475 |  |  | — |  |  | $ | 3,081 |  |  | $ | 80,394 |
|  | $ | 91,775 |  |  | — |  |  | $ | 3,081 |  |  | $ | 88,694 |
The contractual maturities and announced calls of available-for-sale securities at December 31, 2011 are detailed in the table below. The table is prepared based on information known to management as of December 31, 2011. As management receives intents to call from issuers, the associated securities are changed from their contractual maturities to the date received in the respective call notice.
|  | Fair Value |  | Amortized Cost
Due within one year |  | $ | — |  |  | $ | — |
Due after one year through five years |  | — |  |  | — |
Due after five years through ten years |  | — |  |  | — |
Due after ten years through May 1, 2040 |  | 50,569 |  |  | 53,650 |
|  | $ | 50,569 |  |  | $ | 53,650 |
The guidance under U.S. GAAP defines fair value, specifies a hierarchy of valuation techniques based on whether the inputs to those valuation techniques are observable or unobservable, and requires disclosures about fair value measurements. The Company estimates the fair value of the auction rate securities applying the authoritative guidance on fair value measurements which establishes fair value as an estimate of what the Company could sell the investments for in an orderly transaction with a third party as of each measurement date. Observable inputs are inputs that reflect market data obtained from sources independent of the Company and unobservable inputs are inputs based on the Company’s own assumptions derived from the best information available in the circumstances. These inputs are used in applying the following fair value hierarchy:
• | Level 1 – quoted prices in active markets for identical assets or liabilities.
• | Level 2 – quoted prices for similar assets or liabilities in active markets; quoted prices for identical or similar assets or liabilities in markets that are not active; modeling with inputs that have observable inputs (i.e. interest rates observable at commonly quoted intervals.
• | Level 3 – valuation is generated from model-based techniques that use significant assumptions not observable in the market.
Under the guidance, where applicable GAAP literature requires the use of fair value, the Company must value assets and liabilities at the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Additional authoritative literature provides guidance regarding the considerations necessary when markets are inactive. The guidance indicates that quotes from brokers or pricing services may be relevant inputs when measuring fair value, but are not necessarily determinative in the absence of an active market for the asset. As of December 31, 2011, all of the Company’s auction rate student loan bonds were associated with unsuccessful auctions. As such, the estimated fair value of the underlying investments had declined below amortized cost of the investments as a result of liquidity issues in the auction rate markets. To date, there have been no instances of delinquencies or non-payment of applicable interest from the issuers and all calls of securities by the issuers have been at par value plus accrued interest. Since the first auction failures in February 2008 when the Company had approximately $198.5 million ARS at par, the Company has received approximately $144.8 million of calls from issuers, at par, plus accrued interest at the time of the call. This includes $38.1 million and $61.2 million, received in the years ended December 31, 2011 and 2010 respectively. Accrued interest income is included in other current assets in the consolidated balance sheet. Until auction failures began, the fair value of these investments were calculated using Level 1 observable inputs and fair value was deemed to be equivalent to amortized cost due to the short-term and regularly occurring auction process. Based on auction failures beginning in mid-February 2008 and continued failures through December 31, 2011, there were no significant observable quoted prices or other relevant inputs for identical or similar securities. Estimated fair value of all auction rate security investments as of December 31, 2011 and December 31, 2010 was calculated using unobservable, Level 3 inputs, due to the lack of observable market inputs specifically related to student loan ARS. The fair value of these investments as of the December 31, 2011 and December 31, 2010 measurement dates could not be determined with precision based on lack of observable market data and could vary significantly in future measurement periods. The Company performs an internal cash flow analysis on an individual investment basis to estimate fair value of ARS using inputs determined based on management's understanding of market conditions as well as information derived from other publicly available third party sources. This approach considers the anticipated estimated outstanding average life of the underlying student loans (range of 2 to 12 years) that are the collateral to the trusts, principal outstanding, expected rates of returns over the average life of the underlying student loans using forward rate curves, and payout formulas. Management also uses notices received of intent to call certain securities before their contractual maturities within the cash flow models. The range of estimated outstanding lives is based on call notices received by the Company, communications with trusts, and communications with third party financial institutions. These underlying cash flows, by individual investment, were discounted using interest rates consistent with instruments of similar quality and duration adjusted for a lack of liquidity in the market. The Company also obtains estimated fair value of ARS from third party financial advisors. The Company obtains an understanding of assumptions in models used by third party financial institutions to estimate fair value. All of this information is considered when determining the estimated fair value of these instruments as recorded in the consolidated financial statements. The Company's discounted cash flow approach requires the use of multiple input factors including an estimated rate of return, base discount rate, and a liquidity discount rate to reflect the current lack of liquidity of ARS in capital markets due to auction failures. We understand that models employed by the Company's third party financial advisors are also subject to changes in similar input factors. As such, the fair value of ARS is subject to change based on significant changes to the underlying input factors. The Company has analyzed the potential impact of a 50 basis point change to the rate of return, discount rate, and liquidity discount rate noting that this would not materially impact the recorded fair value. The table below shows the inputs in the Company's cash flow models as of December 31, 2011 for the remaining ARS investments compared to the inputs used in cash flow models as of December 31, 2010. Inputs used in Company models of all securities held as of December 31, 2011 and December 31, 2010, excluding investments whose fair value is estimated to be par value as of the reporting period due to call notices being received by the Company were as follows:
| December 31, 2011 |  | December 31, 2010 |
Average life of underlying loans | 2-12 years |  | 2-12 years |
Rate of return | 0.68-2.92% |  | 1.28-4.12% |
Discount rate | 0.48-1.14% |  | 0.53-1.85% |
Liquidity discount rate | 0.55-1.16% |  | 0.40-0.80% |
The unrealized loss of $3.1 million is recorded as an adjustment to accumulated other comprehensive loss and the Company has not recognized any other than temporary impairments in the consolidated statements of income. There were not any realized gains or losses related to these investments for the years ended December 31, 2011 and 2010. The Company can not currently project when liquidity will be obtained from these investments and plans to continue to hold such securities until the securities are called, redeemed, or resecuritized by the debt issuers. The Company has evaluated the unrealized loss on these securities to determine whether the decline in fair value is other than temporary. Management has concluded the decline in fair value to be temporary based on the following considerations.
• | Since auction failures began in February 2008, the Company has received approximately $144.8 million as the result of calls by issuers which includes $38.1 million in calls received during the year ended December 31, 2011. The Company received par value for the amount of these calls plus accrued interest. There have not been any defaults on scheduled interest payments.
• | Based on the Company's financial operating results, current cash balances, operating cash flows and debt free balance sheet, the Company does not have the intent to sell such securities at a discount and it is not more likely than not to be required to sell the securities before they recover their value.
• | There have not been any significant changes in collateralization and ratings of the underlying securities since the first failed auction. All of the Company's auction rate security portfolio, as of December 31, 2011, is in senior positions of AAA (or equivalent) rated securities that are backed by the U.S. government.
• | The Company is aware of recent increases in default rates of the underlying student loans that are the assets to the trusts issuing the auction rate security debt, which management believes is due to current overall negative economic conditions. As the underlying loans are guaranteed by the U.S. Government, defaults of the loans accelerate payment of the underlying loan to the trust. As trusts are no longer recycling repayment money for new loans, accelerated repayment of any student loan to the underlying trust would increase cash flows of the trust which would potentially result in partial calls by the underlying trusts.
• | As trusts are no longer recycling underlying loan repayment money for new loans, excess funds are being used to pay down debt of the trust therefore potentially resulting in partial calls of securities held by the Company prior to contractual maturities.
• | The Company is aware of recent transactions taking place in secondary markets as well as tender offers for ARS at sub par pricing. The Company does not intend to tender any holdings at sub par pricing. As ARS debt holders tender ARS debt back to trusts at sub par pricing, the overall equity of the trusts is strengthened.
• | Current market activity and the lack of severity or extended decline do not warrant such action at this time.
Management will monitor its investments and ongoing market conditions in future periods to assess impairments considered to be other than temporary. Should fair value continue to remain below cost or decrease significantly from current levels due to credit related issues, the Company may be required to record an other than temporary impairment of these investments, through a charge in the consolidated statement of income although the factors currently do not warrant such a charge. The table below presents a rollforward for all assets and liabilities, measured at fair value, on a recurring basis using significant unobservable inputs (Level 3) during the three months ended December 31, 2011 and 2010.
|  | Available-for-sale debt securities
|  | (in thousands)
|  | 2011 |  | 2010
Balance, January 1 |  | $ | 88,694 |  |  | $ | 147,419 |
Settlements |  | (38,125 | ) |  | (61,225 | )
Purchases |  | — |  |  | — |
Issuances |  | — |  |  | — |
Sales |  | — |  |  | — |
Transfers in to (out of) Level 3 |  | — |  |  | — |
Total gains or losses (realized/unrealized): |  |  |  |  |
Included in earnings |  | — |  |  | — |
Included in other comprehensive loss, net of tax |  | — |  |  | 2,500 |
Balance, December 31, |  | $ | 50,569 |  |  | $ | 88,694 |

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- Definition The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6925170&loc=d3e19296-110258 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 159 -Paragraph 17-22, 27, 28 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. 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