Summary of Significant Accounting Policies - New Accounting Pronouncements (Details) - Reclassification - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
ASU 2015-03 | Deferred financing fees, net | 2015 Credit Agreement
New accounting pronouncements
Impact of adoption of new accounting pronouncement	$ 0
ASU 2015-15 | Deferred financing fees, net
New accounting pronouncements
Impact of adoption of new accounting pronouncement		$ (977,000)
ASU 2015-15 | Long-term debt, less current portion
New accounting pronouncements
Impact of adoption of new accounting pronouncement		977,000
ASU 2015-17 | Deferred income tax, current
New accounting pronouncements
Impact of adoption of new accounting pronouncement		(712,000)	$ (1,600,000)
ASU 2015-17 | Deferred income tax, noncurrent
New accounting pronouncements
Impact of adoption of new accounting pronouncement		$ 712,000	$ 1,600,000