Fair Value Measurements - Narrative (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Related allowance	$ 8,929	$ 10,297	$ 32,838
Impairment losses	616	70	0
Fair Value, Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Long-lived assets to be disposed of, carrying value	1,785
Impairment losses	599	70
Long-lived assets to be disposed of, fair value	1,186	496
Long-lived assets to be disposed of, carried at cost	566
Fair Value, Measurements, Nonrecurring | Fair Value, Inputs, Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Loans receivable, impaired, fair value disclosure	57,302	74,623
Related allowance	8,929	10,297
Impaired financing receivable, related allowance, partial loan charge-offs	14,295	22,327
Carrying Amount | Fair Value, Measurements, Nonrecurring | Fair Value, Inputs, Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Loans receivable, impaired, fair value disclosure	80,526	107,247
Estimated Fair Value | Fair Value, Measurements, Nonrecurring | Fair Value, Inputs, Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Loans receivable, impaired, fair value disclosure	$ 57,302	$ 74,623