Basis of Presentation (Details 6) (USD $)	3 Months Ended		9 Months Ended										1 Months Ended		1 Months Ended	3 Months Ended			3 Months Ended						3 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014		Sep. 30, 2013	Dec. 31, 2013	Sep. 30, 2014 North America	Dec. 31, 2013 North America	Sep. 30, 2013 North America	Sep. 30, 2014 Europe	Dec. 31, 2013 Europe	Sep. 30, 2013 Europe	Feb. 28, 2013 ShearBrace	Feb. 28, 2013 ShearBrace North America	Nov. 30, 2013 Bierbach GmbH & Co. KG	Sep. 30, 2014 Bierbach GmbH & Co. KG	Sep. 30, 2014 Bierbach GmbH & Co. KG Europe	Nov. 30, 2013 Bierbach GmbH & Co. KG Europe	Mar. 31, 2014 S&P Clever	Sep. 30, 2014 S&P Clever	Sep. 30, 2014 Level 3 Bierbach GmbH & Co. KG	Jun. 30, 2014 Level 3 Bierbach GmbH & Co. KG	Nov. 30, 2013 Level 3 Bierbach GmbH & Co. KG	Sep. 30, 2014 GERMANY Europe	Sep. 30, 2014 General and Administrative Expense Bierbach GmbH & Co. KG
Acquisitions
Cash paid for acquisition													$ 5,300,000		$ 1,200,000
Goodwill	125,228,000	130,270,000	125,228,000		130,270,000	129,218,000	84,647,000	84,822,000	87,104,000	38,918,000	42,690,000	41,388,000		900,000			500,000	700,000
Intangible assets													3,600,000		600,000	600,000
Weighted-average amortization period													11 years 3 months 18 days
Contingent liability incurred																					400,000	800,000	800,000
Gain on contingent consideration adjustment			386,000		0																				400,000
Deferred consideration payment																			1,100,000
Contingent consideration payment																			200,000
Contingent consideration payable																				1,500,000
Maximum period for payment for adjustments to provisional fair value measurements			1 year
Impairment of goodwill	$ 492,000	$ 0	$ 492,000	[1]	$ 0											$ 500,000
Carrying value of Germany Reporting Unit goodwill exceeding fair value percentage																								32.00%

[1] See Note 1 "Basis of Presentation — Goodwill Impairment Testing"