Long-Term Obligations - Summary of Leverage Ratio (Details)	12 Months Ended
	Dec. 31, 2015
Tier One [Member] | Minimum [Member]
Schedule Of Percentage Margin For Eurodollar Rate Loans And Commitment Fee [Line Items]
Consolidated Leverage Ratio	4
Tier Two [Member] | Maximum [Member]
Schedule Of Percentage Margin For Eurodollar Rate Loans And Commitment Fee [Line Items]
Consolidated Leverage Ratio	4
Tier Two [Member] | Minimum [Member]
Schedule Of Percentage Margin For Eurodollar Rate Loans And Commitment Fee [Line Items]
Consolidated Leverage Ratio	3.25
Tier Three [Member] | Maximum [Member]
Schedule Of Percentage Margin For Eurodollar Rate Loans And Commitment Fee [Line Items]
Consolidated Leverage Ratio	3.25
Tier Three [Member] | Minimum [Member]
Schedule Of Percentage Margin For Eurodollar Rate Loans And Commitment Fee [Line Items]
Consolidated Leverage Ratio	2.50
Tier Four [Member] | Maximum [Member]
Schedule Of Percentage Margin For Eurodollar Rate Loans And Commitment Fee [Line Items]
Consolidated Leverage Ratio	2.5
Tier Four [Member] | Minimum [Member]
Schedule Of Percentage Margin For Eurodollar Rate Loans And Commitment Fee [Line Items]
Consolidated Leverage Ratio	1.75
Tier Five [Member] | Maximum [Member]
Schedule Of Percentage Margin For Eurodollar Rate Loans And Commitment Fee [Line Items]
Consolidated Leverage Ratio	1.75
Tier Five [Member] | Minimum [Member]
Schedule Of Percentage Margin For Eurodollar Rate Loans And Commitment Fee [Line Items]
Consolidated Leverage Ratio	1.00
Tier Six [Member] | Maximum [Member]
Schedule Of Percentage Margin For Eurodollar Rate Loans And Commitment Fee [Line Items]
Consolidated Leverage Ratio	1.00
Credit Agreement [Member] | Tier One [Member]
Schedule Of Percentage Margin For Eurodollar Rate Loans And Commitment Fee [Line Items]
Commitment Fee	0.45%
Credit Agreement [Member] | Tier One [Member] | Eurodollar [Member]
Schedule Of Percentage Margin For Eurodollar Rate Loans And Commitment Fee [Line Items]
Applicable margin for borrowings	2.25%
Credit Agreement [Member] | Tier One [Member] | Base rate [Member]
Schedule Of Percentage Margin For Eurodollar Rate Loans And Commitment Fee [Line Items]
Applicable margin for borrowings	1.25%
Credit Agreement [Member] | Tier Two [Member]
Schedule Of Percentage Margin For Eurodollar Rate Loans And Commitment Fee [Line Items]
Commitment Fee	0.40%
Credit Agreement [Member] | Tier Two [Member] | Eurodollar [Member]
Schedule Of Percentage Margin For Eurodollar Rate Loans And Commitment Fee [Line Items]
Applicable margin for borrowings	2.00%
Credit Agreement [Member] | Tier Two [Member] | Base rate [Member]
Schedule Of Percentage Margin For Eurodollar Rate Loans And Commitment Fee [Line Items]
Applicable margin for borrowings	1.00%
Credit Agreement [Member] | Tier Three [Member]
Schedule Of Percentage Margin For Eurodollar Rate Loans And Commitment Fee [Line Items]
Commitment Fee	0.35%
Credit Agreement [Member] | Tier Three [Member] | Eurodollar [Member]
Schedule Of Percentage Margin For Eurodollar Rate Loans And Commitment Fee [Line Items]
Applicable margin for borrowings	1.75%
Credit Agreement [Member] | Tier Three [Member] | Base rate [Member]
Schedule Of Percentage Margin For Eurodollar Rate Loans And Commitment Fee [Line Items]
Applicable margin for borrowings	0.75%
Credit Agreement [Member] | Tier Four [Member]
Schedule Of Percentage Margin For Eurodollar Rate Loans And Commitment Fee [Line Items]
Commitment Fee	0.30%
Credit Agreement [Member] | Tier Four [Member] | Eurodollar [Member]
Schedule Of Percentage Margin For Eurodollar Rate Loans And Commitment Fee [Line Items]
Applicable margin for borrowings	1.50%
Credit Agreement [Member] | Tier Four [Member] | Base rate [Member]
Schedule Of Percentage Margin For Eurodollar Rate Loans And Commitment Fee [Line Items]
Applicable margin for borrowings	0.50%
Credit Agreement [Member] | Tier Five [Member]
Schedule Of Percentage Margin For Eurodollar Rate Loans And Commitment Fee [Line Items]
Commitment Fee	0.25%
Credit Agreement [Member] | Tier Five [Member] | Eurodollar [Member]
Schedule Of Percentage Margin For Eurodollar Rate Loans And Commitment Fee [Line Items]
Applicable margin for borrowings	1.25%
Credit Agreement [Member] | Tier Five [Member] | Base rate [Member]
Schedule Of Percentage Margin For Eurodollar Rate Loans And Commitment Fee [Line Items]
Applicable margin for borrowings	0.25%
Credit Agreement [Member] | Tier Six [Member]
Schedule Of Percentage Margin For Eurodollar Rate Loans And Commitment Fee [Line Items]
Commitment Fee	0.25%
Credit Agreement [Member] | Tier Six [Member] | Eurodollar [Member]
Schedule Of Percentage Margin For Eurodollar Rate Loans And Commitment Fee [Line Items]
Applicable margin for borrowings	1.00%
Credit Agreement [Member] | Tier Six [Member] | Base rate [Member]
Schedule Of Percentage Margin For Eurodollar Rate Loans And Commitment Fee [Line Items]
Applicable margin for borrowings	0.00%