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Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line.

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The portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments representing (a) the amount of the hedge ineffectiveness and (b) the amount, if any, excluded from the assessment of hedge effectiveness.

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This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee.

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Carrying amount (including both current and noncurrent portions) of accrued known and estimated losses incurred as of the balance sheet date for which no insurance coverage exists, and for which a claim has been made or is probable of being asserted, typically arising from workmen's compensation-type of incidents and personal injury to nonemployees from accidents on the entity's property.

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Percentage of the Variable Interest Entity's (VIE) voting interest owned by (or beneficial interest in) the reporting entity (directly or indirectly).

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Significant Accounting Policies and Practices (Details 3) (USD $)	1 Months Ended	12 Months Ended
	Oct. 31, 2014	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Oct. 25, 2012
Advertising Costs
Advertising expenses		$ 1,318,000us-gaap_AdvertisingExpense	$ 971,000us-gaap_AdvertisingExpense	$ 796,000us-gaap_AdvertisingExpense
Equity investment in unconsolidated subsidiaries.
Equity earnings in related investments		1,945,000	2,115,000	1,014,000
Ownership percentage	30.00%
Recognition of pre-tax gain	4,161,000
Partnerships and joint ventures
Equity investment in unconsolidated subsidiaries.
Number of ownership interest entities		46
VIEs
Equity investment in unconsolidated subsidiaries.
Number of ownership interest entities		29
Voting interest model entities
Equity investment in unconsolidated subsidiaries.
Number of ownership interest entities		17
General liability
Insurance Reserves
Liability insurance policies, maximum deductibles or a self-insured retention limit		500
Garage liability or automobile liability
Insurance Reserves
Liability insurance policies, maximum deductibles or a self-insured retention limit		500
Workers' compensation and garagekeepers legal liability
Insurance Reserves
Liability insurance policies, maximum deductibles or a self-insured retention limit		250
Cash flow hedges \| Interest rate swaps
Interest rate swaps
Variable rate basis		LIBOR
Fixed rate (as a percent)		0.7525%
Aggregate starting notional amount					150,000,000
Ineffective portion of cash flow hedges recognized		$ 0
Maximum
Equity investment in unconsolidated subsidiaries.
Voting interest ownership percentage		50.00%
Minimum
Equity investment in unconsolidated subsidiaries.
Voting interest ownership percentage		30.00%