CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Related party receivable	$ 0	$ 27,944
Deferred loan and senior notes costs, accumulated amortization	6,542	8,644
Related party payable	0	7,447
Capital lease obligations, excluding current maturities due to related party	$ 1,832	$ 1,857
Common Stock - Class A [Member]
Common Stock, no par (USD per share)
Common stock authorized (shares)	100,000,000	100,000,000
Common stock (shares)	35,850,000	37,998,000
Common stock outstanding (shares)	35,824,000	37,972,000
Treasury stock (shares)	26,000	26,000
Common Stock - Class B [Member]
Common Stock, no par (USD per share)
Common stock authorized (shares)	10,000,000	10,000,000
Common stock (shares)	3,154,000	3,159,000
Common stock outstanding (shares)	3,154,000	3,159,000