This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Company may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months.

+ References+ Details

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References+ Details

- Definition

The carrying amounts of cash and cash equivalent items which are restricted as to withdrawal or usage. Restrictions may include legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or entity statements of intention with regard to particular deposits; however, time deposits and short-term certificates of deposit are not generally included in legally restricted deposits. Excludes compensating balance arrangements that are not agreements which legally restrict the use of cash amounts shown on the balance sheet. This element is for unclassified presentations; for classified presentations there is a separate and distinct element.

+ References+ Details

FAIR VALUE OF FINANCIAL INSTRUMENTS (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Mar. 31, 2013 $100 Million Term Loan Facility	Dec. 31, 2012 $100 Million Term Loan Facility	Aug. 12, 2010 $100 Million Term Loan Facility	Aug. 01, 2012 $100 Million Term Loan Facility August 2012 Agreements	Mar. 31, 2013 $253 Million Term Loan Facility	Dec. 31, 2012 $253 Million Term Loan Facility	Aug. 20, 2010 $253 Million Term Loan Facility	Aug. 01, 2012 $253 Million Term Loan Facility August 2012 Agreements	Mar. 31, 2013 Carrying Value	Dec. 31, 2012 Carrying Value	Mar. 31, 2013 Fair value	Dec. 31, 2012 Fair value
Fair value of financial instruments
Cash and cash equivalents										$ 55,049	$ 72,600	$ 55,049	$ 72,600
Restricted cash	9,850					9,750	9,750			10,150	10,150	10,150	10,150
Floating rate debt		75,484	75,484			180,793	180,793			1,413,439	1,413,439	1,413,439	1,413,439
2010 Notes										112,097	110,918	42,500	44,375
Face amount of term loan facility		$ 100,000	$ 100,000	$ 100,000	$ 100,000	$ 253,000	$ 253,000	$ 253,000	$ 253,000