Subsequent Events (Details) $ / shares in Units, $ in Millions	Nov. 09, 2015 $ / shares	Oct. 15, 2015 USD ($) source	Sep. 30, 2015 $ / shares
Subsequent Event [Line Items]
Dividends declared (in dollars per share) | $ / shares			$ 0.023
Subsequent Event
Subsequent Event [Line Items]
Dividends declared, percentage increase	8.70%
Dividends declared (in dollars per share) | $ / shares	$ 0.025
Progressive Subsidiary | Dent-A-Med, Inc. | Subsequent Event
Subsequent Event [Line Items]
Total merger consideration		$ 99.7
Cash consideration		54.9
Debt assumed		$ 44.8
Number of sources of financial and leasing transactions acquired | source		1
Revolving Credit Facility | Progressive Subsidiary | Dent-A-Med, Inc. | Subsequent Event
Subsequent Event [Line Items]
Long-term debt assumed		$ 85.0
Letter of Credit | Progressive Subsidiary | Dent-A-Med, Inc. | Subsequent Event
Subsequent Event [Line Items]
Long-term debt assumed		2.0
Accordion Facility | Progressive Subsidiary | Dent-A-Med, Inc. | Subsequent Event
Subsequent Event [Line Items]
Long-term debt assumed		$ 25.0