Summary of Significant Accounting Policies (Narrative) (Details)	1 Months Ended	3 Months Ended	12 Months Ended
	Jun. 30, 2014 USD ($)	Mar. 31, 2015 USD ($)	Dec. 31, 2015 USD ($) customer	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)
Significant Accounting Policies [Line Items]
Revenue recognized under the percentage-of-completion method			16.70%
Number of significant customers | customer			2
Advertising costs			$ 4,700,000	$ 4,000,000	$ 4,000,000
Minimum | Land, Buildings and Improvements
Significant Accounting Policies [Line Items]
Estimated useful lives			15 years
Minimum | Machinery and Equipment
Significant Accounting Policies [Line Items]
Estimated useful lives			3 years
Maximum | Land, Buildings and Improvements
Significant Accounting Policies [Line Items]
Estimated useful lives			40 years
Maximum | Machinery and Equipment
Significant Accounting Policies [Line Items]
Estimated useful lives			20 years
Residential Products | Home Improvement Retail Company | Accounts Receivable
Significant Accounting Policies [Line Items]
Concentrations of credit risk			11.80%	17.10%
Residential Products | Home Improvement Retail Company | Net sales
Significant Accounting Policies [Line Items]
Concentrations of credit risk			10.60%	11.50%
Residential Products | Foreign Postal Operator | Accounts Receivable
Significant Accounting Policies [Line Items]
Concentrations of credit risk			5.50%	11.50%
First quarter 2015 Sale Leaseback
Significant Accounting Policies [Line Items]
Sale price		$ 26,373,000
Period of lease		5 years
Net present value of future minimum lease payments		$ 5,765,000
Deferred gain on sale		13,144,000
Gain above minimum lease payments fair value		7,379,000
Minimum lease payment for first year		1,378,000,000
Minimum lease payments year 2		1,378,000,000
Minimum lease payments year 3		1,378,000,000
Minimum lease payments year 4		1,378,000,000
Minimum lease payments year 5		$ 1,378,000,000
June 2014 Sale Leaseback
Significant Accounting Policies [Line Items]
Sale price	$ 4,500,000
Period of lease	5 years
Net present value of future minimum lease payments	$ 892,000
Deferred gain on sale	829,000
Minimum lease payment for first year	$ 202,000
Percent leased back	50.00%
Lease payment escalation rate	3.00%
Period of lease payment increase	4 years
Accounting Standard Update 2015-15
Significant Accounting Policies [Line Items]
Increase (Decrease) in Other Current Assets			$ 3,900,000	$ 3,700,000
Accounting Standard Update 2015-17
Significant Accounting Policies [Line Items]
Increase (Decrease) in Other Current Assets			$ 10,000,000