Acquisitions (Details) (MagnaLynx, USD $) In Millions, unless otherwise specified	1 Months Ended
	Mar. 31, 2010
MagnaLynx
Acquisitions
Amount of cash paid to settle debt and certain other liabilities	$ 2.2
Amount of cash paid to shareholders of the acquired entity	1.2
Indemnification holdback	0.5
Period after the closing for indemnification holdback payment	18 months
Acquisition-related earnout	$ 1.0
Period after the closing for earn-out consideration payment	6 months