Long-Term Debt and Credit Facility - First Lien Credit Facility (Details) $ in Thousands			3 Months Ended	12 Months Ended
	Oct. 15, 2015 USD ($)	Aug. 17, 2015 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2016 USD ($) item	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
Long-term Debt
Interest expense related to amortization of deferred financing costs and discount				$ 1,922	$ 5,648	$ 591
First Lien Credit Facility
Long-term Debt
Maximum net leverage ratio		7.00
Eurodollar rate | First Lien Credit Facility
Long-term Debt
Applicable margin over reference rate (as a percent)				4.50%
Eurodollar rate | First Lien Credit Facility | Minimum
Long-term Debt
Interest rate (as a percent)				1.00%
Base rate | First Lien Credit Facility
Long-term Debt
Applicable margin over reference rate (as a percent)				3.50%
Term Loan | First Lien Credit Facility
Long-term Debt
Maximum borrowing capacity		$ 435,000
Amount repaid	$ 112,500		$ 10,000
Interest expense related to amortization of deferred financing costs and discount					$ 4,687
Revolving Credit Facility | First Lien Credit Facility
Long-term Debt
Maximum borrowing capacity		$ 40,000
Fee on outstanding letters of credit (as a percent)				4.50%	4.50%
Fronting fee for letters of credit (as a percent)				0.125%	0.125%
Amount drawn to trigger net leverage requirement (as a percent)				50.00%
Number of outstanding letters of credit | item				1
Letters of credit outstanding				$ 50
Amount outstanding				0
Current borrowing capacity				$ 39,950
Revolving Credit Facility | First Lien Credit Facility | Minimum
Long-term Debt
Unused commitment fee (as a percent)				0.375%
Revolving Credit Facility | First Lien Credit Facility | Maximum
Long-term Debt
Unused commitment fee (as a percent)				0.50%