Income Taxes (Narrative) (Details) - USD ($)	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Tax Contingency [Line Items]
Federal NOL Carryforward Limiit Due To IRC 382	$ 4,800,000								$ 4,800,000
Current income tax expense (benefit)									(3,797,000)	$ 4,915,000	$ 6,273,000
Total income tax expense (benefit)									(9,689,000)	(65,577,000)	6,273,000
Income tax expense, continuing									(9,689,000)	(65,577,000)	6,273,000
Reversal Of Valuation Allowance										76,100,000
Reduction Of Tax Benefit For Federal And State Tax Expense										$ 10,600,000
Effective Income Tax Rate Prior To Valuation Allowance										37.10%
State net operating loss carryforwards	126,200,000								126,200,000
Unrealized NOLs From Stock Based Compensation	400,000				$ 0				400,000	$ 0	0
Windfall Tax Benefits	0				1,000,000				0	1,000,000	2,600,000
Income taxes receivable	11,390,000				6,010,000				11,390,000	6,010,000
Income taxes paid									4,600,000	12,900,000
Income tax refunds received									300,000	0
Valuation allowance	126,000				0				126,000	0	75,248,000	$ 84,629,000
Deferred Tax Assets, Net					70,492,000		$ 76,100,000			70,492,000
Liability for uncertain tax positions	3,000,000								3,000,000
Reduction of tax indemnification asset									$ 784,000	$ 1,413,000	$ 1,306,000
Income tax expense at statutory rate									35.00%	35.00%	35.00%
Effective Income Tax Rate Reconciliation, Percent									66.70%	(230.50%)	22.50%
DTA Federal NOL							30,500,000
DTA Pre Tax Federal NOL Carryforward							87,100,000
DTA Intangible Assets							24,800,000
DTA State NOLs							1,800,000
DTA Deductible Timing Differences							19,000,000
Income from continuing operations before income taxes									$ (14,520,000)	$ 28,455,000	$ 27,928,000
Net sales	510,162,000	$ 416,471,000	$ 357,287,000	$ 292,826,000	$ 311,848,000	$ 358,314,000	$ 351,620,000	$ 289,716,000	1,576,746,000	$ 1,311,498,000	$ 1,210,156,000
IRC 382 [Member]
Income Tax Contingency [Line Items]
Total income tax expense (benefit)									$ 8,100,000
Error In State NOL Carryforward Calculation [Member]
Income Tax Contingency [Line Items]
Out Of Period Benefit	900,000
State and Local Jurisdiction [Member]
Income Tax Contingency [Line Items]
Income Tax Examination Period									3 years
Federal [Member]
Income Tax Contingency [Line Items]
Income Tax Examination Period									3 years
Tax Year 2028 [Member]
Income Tax Contingency [Line Items]
NOL Expiration	48,100,000								$ 48,100,000
Tax Year 2029 [Member]
Income Tax Contingency [Line Items]
NOL Expiration	17,300,000								17,300,000
Tax Years 2030 through 2034 [Member]
Income Tax Contingency [Line Items]
NOL Expiration	27,100,000								27,100,000
NOL Expiration Per Year	4,800,000								$ 4,800,000
Tax Year 2008 [Member] | Federal [Member]
Income Tax Contingency [Line Items]
Open tax year end									Jul. 31, 2008
Tax Year 2009 [Member] | Federal [Member]
Income Tax Contingency [Line Items]
Open tax year end									May 05, 2009
SBS [Member]
Income Tax Contingency [Line Items]
Deferred Tax Liability Related To Merger	75,000,000								$ 75,000,000
Tax Payable Receivable Recorded Related To Merger	3,200,000								3,200,000
Income from continuing operations before income taxes									18,600,000
Net sales									103,600,000
VNS [Member]
Income Tax Contingency [Line Items]
Deferred Tax Liability Related To Merger	4,400,000								4,400,000
Tax Payable Receivable Recorded Related To Merger	$ (400,000)								(400,000)
Income from continuing operations before income taxes									4,700,000
Net sales									$ 104,500,000