Estimated Fair Values of Assets Acquired and Liabilities Assumed for Celfrost Acquisition (Details) (Celfrost [Member], USD $) In Thousands, unless otherwise specified	Oct. 15, 2013
Business Acquisition [Line Items]
Current assets	$ 5,588
Property, plant and equipment	182
Goodwill	5,993
Other intangibles	4,333
Business Acquisition, Purchase Price Allocation, Current Assets, Prepaid Expense and Other Assets	4
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities	(3,979)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other	(875)
Business Acquisition Cost Of Acquired Entity Consideration Paid	11,246
Business Acquisition, Deferred Payments	1,067
Net assets acquired and liabilities assumed	12,313
as initially reported
Business Acquisition [Line Items]
Current assets	5,638
Property, plant and equipment	182
Goodwill	5,943
Other intangibles	4,333
Business Acquisition, Purchase Price Allocation, Current Assets, Prepaid Expense and Other Assets	4
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities	3,979
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other	875
Business Acquisition Cost Of Acquired Entity Consideration Paid	11,246
Business Acquisition, Deferred Payments	1,067
Net assets acquired and liabilities assumed	12,313
Scenario, Adjustment [Member]
Business Acquisition [Line Items]
Current assets	(50)
Property, plant and equipment	0
Goodwill	50
Other intangibles	0
Business Acquisition, Purchase Price Allocation, Current Assets, Prepaid Expense and Other Assets	0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities	0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other	0
Business Acquisition Cost Of Acquired Entity Consideration Paid	0
Business Acquisition, Deferred Payments	0
Net assets acquired and liabilities assumed	$ 0