Subsequent Events Subsequent Events (Details) (USD $)			0 Months Ended
	Sep. 30, 2014	Dec. 31, 2013	Oct. 01, 2014 National Meter and Automation, Inc. Subsequent Event	Oct. 01, 2014 National Meter and Automation, Inc. Subsequent Event
Subsequent Event [Line Items]
Percentage of common stock acquired (as a percent)				100.00%
Purchase price			$ 20,700,000
Potential earn out payment				1,000,000
Final payment				1,800,000
Accounts receivable				3,900,000
Inventory				4,800,000
Fixed assets				2,900,000
Intangibles				9,600,000
Goodwill	$ 44,695,000	$ 44,695,000		$ 2,900,000