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Long-Term Debt (Peninsula Senior Notes Narrative) (Details) - USD ($)		12 Months Ended
	Aug. 16, 2012	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
For the year ending December 31,
Amortization of debt financing costs		$ 17,415,000	$ 18,698,000	$ 21,381,000
Payments of Debt Issuance Costs		14,004,000	288,000	44,752,000
Peninsula | Bank Credit Facility
For the year ending December 31,
Amount outstanding		662,750,000	742,400,000
Amortization of debt financing costs		$ 2,100,000	$ 1,500,000	$ 1,300,000
Peninsula | Senior Notes | 8.375% Senior Notes due 2018
For the year ending December 31,
Face amount	$ 350,000,000
Debt instrument, stated interest rate	8.375%	8.375%	8.38%
Conditional repurchase price, % of principal	101.00%
Debt instrument, redemption price, percentage		104.188%
Payments of Debt Issuance Costs	$ 14,200,000
Prior to August 15, 2014 | Peninsula | Senior Notes | 8.375% Senior Notes due 2018
For the year ending December 31,
Redemption price, % of principal, subject to make-whole premium	100.00%
During 2016 and Thereafter | Peninsula | Senior Notes | 8.375% Senior Notes due 2018
For the year ending December 31,
Debt instrument, redemption price, percentage	101.00%

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

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

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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.

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