Consolidating Condensed Financial Information (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Jun. 30, 2007 7.50% Senior Subordinated Notes due 2015
Long-term Debt
Cash and other assets	$ 198,575,000	$ 101,792,000	$ 80,294,000	$ 195,387,000
Stated percentage					7.50%
Cash and other assets	$ 65,000,000