Long-term Debt - Narrative (Details) (USD $)	9 Months Ended		0 Months Ended	9 Months Ended	0 Months Ended	9 Months Ended	0 Months Ended	9 Months Ended										0 Months Ended	9 Months Ended
	Sep. 30, 2014 Credit Agreement quarter	Dec. 31, 2013 Credit Agreement	Dec. 19, 2012 Base Rate Credit Agreement	Sep. 30, 2014 Base Rate Credit Agreement	Dec. 19, 2012 London Interbank Offered Rate (LIBOR) Market Index Rate Credit Agreement	Sep. 30, 2014 London Interbank Offered Rate (LIBOR) Market Index Rate Credit Agreement	Dec. 19, 2012 London Interbank Offered Rate (LIBOR) Credit Agreement	Sep. 30, 2014 London Interbank Offered Rate (LIBOR) Credit Agreement	Sep. 30, 2014 Federal Funds Rate Credit Agreement	Sep. 30, 2014 Variable Rate 1 Credit Agreement	Dec. 31, 2013 Variable Rate 1 Credit Agreement	Sep. 30, 2014 Variable Rate 2 Credit Agreement	Dec. 31, 2013 Variable Rate 2 Credit Agreement	Oct. 04, 2013 Revolving Credit Facility Credit Agreement	Sep. 30, 2010 Revolving Credit Facility Wells Fargo	Dec. 19, 2012 Term Loan Credit Agreement	Sep. 30, 2014 Bridge Loan Base Rate Credit Agreement	Dec. 19, 2012 Bridge Loan London Interbank Offered Rate (LIBOR) Market Index Rate Credit Agreement	Sep. 30, 2014 Bridge Loan London Interbank Offered Rate (LIBOR) Market Index Rate Credit Agreement
Line of Credit Facility [Line Items]
Line of Credit Facility, Amount Outstanding	$ 240,500,000
Line of Credit Facility, Maximum Borrowing Capacity														215,000,000	125,000,000	100,000,000
Debt Instrument, Basis Spread on Variable Rate			1.00%	0.25%	2.00%	1.25%	2.00%	1.25%										2.00%	1.25%
Debt Instrument, Basis Spread on Base Rate								0.01	0.0050
Line of Credit Facility, Covenant Terms, Consolidated Total Leverage Ratio, Current Quarter, Maximum	4.75
Line of Credit Facility, Covenant Terms, Consolidated Total Leverage Ratio, Quarter One, Maximum	4.00
Line of Credit Facility, Covenant Terms, Consolidated Total Leverage Ratio, Quarter Two, Maximum	3.75
Line of Credit Facility, Covenant Terms, Consolidated Total Leverage Ratio, Quarter Three, Maximum	3.50
Line of Credit Facility, Covenant Terms, Consolidated Total Leverage Ratio, Quarter Four, Maximum	3.25
Line of Credit Facility, Covenant Terms, Consolidated Total Leverage Ratio, Year Two, Maximum	3.00
Line of Credit Facility, Covenant Terms, Consolidated Total Leverage Ratio, Year Three, Maximum	2.75
Line of Credit Facility, Covenant Terms, Consolidated Total Leverage Ratio, Year Four, Maximum	2.50
Line of Credit Facility, Covenant Terms, Consolidated EBITDA to Fixed Charges Ratio, Number of Consecutive Quarters	4
Line of Credit Facility, Covenant Terms, Consolidated EBITDA to Fixed Charges Ratio, Minimum	1.75
Line of Credit Facility, Covenant Terms, Consolidated Net Income, Maximum	0
Line of Credit Facility, Covenant Terms, Facility Capital Expenditures, Next Twelve Months, Maximum	30,000,000
Line of Credit Facility, Covenant Terms, Consolidated Total Leverage Ratio, Minimum				2.25		2.25		2.25									2.25
Line of Credit Facility, Remaining Borrowing Capacity	19,100,000
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate	3.2325%	4.2325%
Long-term Debt, Percentage Bearing Fixed Interest, Amount	141,300,000	145,000,000
Long-term Debt, Percentage Bearing Variable Interest, Percentage Rate										2.41%	3.42%	2.49%	3.50%
Long-term Debt, Percentage Bearing Variable Interest, Amount										$ 39,700,000	$ 101,500,000	$ 59,484,000	$ 2,354,000