|
Debt (Narrative) (Details)
In Thousands, unless otherwise specified |
3 Months Ended | 1 Months Ended | 1 Months Ended | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Sep. 30, 2014
USD ($)
|
Apr. 30, 2014
USD ($)
|
Dec. 31, 2013
USD ($)
|
May 31, 2013
USD ($)
|
May 31, 2011
USD ($)
|
May 31, 2011
5.75% Senior Notes [Member]
USD ($)
|
Sep. 30, 2014
5.75% Senior Notes [Member]
USD ($)
|
Nov. 30, 2012
5.75% Senior Notes [Member]
USD ($)
|
Apr. 30, 2014
4.75% Percent Senior Notes [Member] [Member]
USD ($)
|
Sep. 30, 2014
4.75% Percent Senior Notes [Member] [Member]
USD ($)
|
Sep. 30, 2014
Ribera Salud [Member]
USD ($)
|
Sep. 30, 2014
Ribera Salud [Member]
EUR (€)
|
Sep. 30, 2014
Non Revolver Letter of Credit [Member]
USD ($)
|
|
| Debt Instrument [Line Items] | |||||||||||||
| Senior notes, at par | $ 725,000 | $ 425,000 | $ 250,000 | $ 175,000 | $ 300,000 | ||||||||
| Interest Rate Derivative Assets, at Fair Value | 6,796 | 9,576 | 6,796 | ||||||||||
| Fair value of interest rate swap agreements | 1,250 | 1,250 | |||||||||||
| Debt Instrument, Interest Rate, Stated Percentage | 5.75% | 4.75% | |||||||||||
| Senior notes due date | Jun. 01, 2017 | May 15, 2022 | |||||||||||
| Senior notes, effective yield | 6.00% | 4.29% | |||||||||||
| Derivative, Notional Amount | 300,000 | 250,000 | |||||||||||
| Debt Instrument, Unamortized Premium | 4,724 | 6,052 | |||||||||||
| Variable rate of swap, percentage | 3.74% | 2.51% | |||||||||||
| Revolving credit facility, maximum borrowing capacity | 500,000 | ||||||||||||
| Revolving credit agreement | 140,000 | 150,000 | |||||||||||
| Line of Credit Facility, Covenant Terms | The agreement contains non-financial and financial covenants, including requirements of minimum fixed charge coverage ratios, maximum debt-to-EBITDA ratios and minimum tangible net worth. The Company is required to not exceed a maximum debt-to-EBITDA ratio of 3.0 to 1.0. | ||||||||||||
| Revolving credit facility, due date | Jun. 01, 2018 | ||||||||||||
| Line of Credit, Minimum carrying amount of unrestricted cash | 100,000 | ||||||||||||
| Debt, Weighted Average Interest Rate | 3.04% | ||||||||||||
| Letters of Credit Outstanding, Amount | 60,889 | 48,000 | 30,149 | ||||||||||
| Letters of credit bore interest | 1.71% | ||||||||||||
| Guarantor Obligations, Maximum Exposure, Undiscounted | $ 144,467 | ||||||||||||