Subsequent Events - Additional Information (Details) € in Millions	Aug. 01, 2017 USD ($)	Jul. 03, 2017 USD ($)	Jul. 03, 2017 EUR (€)	Jul. 28, 2017 USD ($)	Jun. 30, 2017 USD ($)	Dec. 31, 2016 USD ($)	May 19, 2016 USD ($)
Second Amendment
Subsequent Event [Line Items]
Maximum borrowing capacity							$ 300,000,000
Long-term debt including current maturities					$ 111,547,000	$ 77,920,000
Revolving Credit Facility | Second Amendment
Subsequent Event [Line Items]
Maximum borrowing capacity							225,000,000
Term Loans | Second Amendment
Subsequent Event [Line Items]
Maximum borrowing capacity							$ 75,000,000
Subsequent Event | Revolving Credit Facility | Third Amendment
Subsequent Event [Line Items]
Increases the revolving credit facility	$ 100,000,000
Maximum borrowing capacity	325,000,000
Line of credit facility accordion feature	125,000,000
Subsequent Event | Term Loans | Third Amendment
Subsequent Event [Line Items]
Long-term debt including current maturities	$ 90,600,000
Subsequent Event | Term Loans | Second Amendment
Subsequent Event [Line Items]
Long-term debt including current maturities				$ 65,600,000
Subsequent Event | World of Medicine GmbH
Subsequent Event [Line Items]
Percentage of shares acquired		100.00%	100.00%
Total purchase price		$ 134,000,000	€ 117.3
Subsequent Event | World of Medicine GmbH | Revolving Credit Facility
Subsequent Event [Line Items]
Amount draw-down to finance acquisition | €			€ 118.0