Income Taxes Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Deferred Tax Assets:
Inventory	$ 27,184	$ 33,452
Accrued expenses and reserves	46,837	40,349
Accounts Receivable	13,971	12,894
Stock-based compensation	11,096	11,978
Qualified and nonqualified retirement plans	14,130	14,049
Net operating loss carryforwards	8,946	6,744
Tax credit carryforwards	3,189	4,424
Other	5,023	8,275
Total deferred tax assets, gross	130,376	132,165
Less valuation allowance	(3,880)	(5,239)
Total deferred tax assets	126,496	126,926
Deferred Tax Liabilities:
Goodwill and other intangible assets	141,442	121,728
Property and equipment	67,065	60,215
Trade name	36,532	43,325
Other	5,342	5,988
Total deferred tax liabilities	250,381	231,256
Net deferred tax liability	$ (123,885)	$ (104,330)

The tax effect as of the balance sheet date of the amount of the estimated future tax deductions arising from estimated losses reflected in the allowance for doubtful accounts, which can only be deducted for tax purposes when actual bad debts are known, and which can only be realized if sufficient tax-basis income is generated in future periods to enable the deduction to be taken. In addition, the tax effect as of the balance sheet date of the amount of the estimated future tax deductions arising from estimated returns and allowances, which can only be deducted for tax purposes when actual returns occur and allowances are granted, and which can only be realized if sufficient tax-basis income is generated in future periods to enable the deductions to be taken.

No definition available.