Exit Activity Costs and Asset Impairments (Narrative) (Details)	3 Months Ended	6 Months Ended		12 Months Ended
	Mar. 31, 2015 USD ($)	Jun. 30, 2015 USD ($) product_line facility	Jun. 30, 2014 USD ($)	Dec. 31, 2014 facility
Restructuring Cost and Reserve [Line Items]
Number of product lines eliminated | product_line		3
Number of facilities closed | facility		2
Number of facilities consolidated | facility				2
Number of facilities sold | facility				1
Asset impairment charges		$ 2,745,000
Exit activity costs		766,000	$ 1,158,000
Gain from sale leaseback	$ 7,379,000	6,799,000
SG&A
Restructuring Cost and Reserve [Line Items]
Asset impairment charges		$ 4,054,000	$ 554,000