Long-term debt (Tables)

12 Months Ended

Dec. 31, 2014

Debt Disclosure [Abstract]

Long Term Debt

Long-term debt was comprised of the following:

	December 31,
	2014			2013
Senior Secured Credit Facilities:
Term Loan A	$	975,000		$	800,000
Term Loan A-3		—			1,282,500
Term Loan B		3,482,500			1,697,500
Term Loan B-2		—			1,633,500
Senior notes		3,775,000			2,800,000
Acquisition obligations and other notes payable		69,045			67,352
Capital lease obligations		218,097			152,751
Total debt principal outstanding		8,519,642			8,433,603
Discount on long-term debt		(16,208	)		(17,675	)
		8,503,434			8,415,928
Less current portion		(120,154	)		(274,697	)
	$	8,383,280		$	8,141,231

Scheduled Maturities of Long-term Debt

Scheduled maturities of long-term debt at December 31, 2014 were as follows:

2015	120,154
2016	117,193
2017	144,161
2018	155,750
2019	730,084
Thereafter	7,252,300

Derivative Instruments

The following table summarizes the Company’s derivative instruments as of December 31, 2014 and 2013:

	Interest rate swap and cap agreements (liabilities and  assets)
	December 31, 2014			December 31, 2013
Derivatives designated as hedging instruments	Balance sheet location	Fair value		Balance sheet location	Fair value
Interest rate swap agreements	Other short- term liabilities	$	1,457	Other short- term liabilities	$	12,069
Interest rate swap agreements	Other long- term assets	$	3,281	Other long- term assets	$	10,004
Interest rate cap agreements	Other long- term assets	$	13,934	Other long- term assets	$	7,567

Effects of Interest Rate Swap Agreements

The following table summarizes the effects of the Company’s interest rate swap and cap agreements for the years ended December 31, 2014, 2013 and 2012:

	Amount of gains (losses) recognized in OCI on interest rate swap and cap agreements									Location of (losses) gains reclassified from	Amount of gains (losses) reclassified from accumulated OCI into income
	Years ended December 31,									accumulated	Years ended December 31,
Derivatives designated as cash flow hedges	2014			2013			2012			OCI into income	2014			2013			2012
Interest rate swap agreements	$	(8,390	)	$	1,251		$	(8,838	)	Debt expense	$	12,279		$	15,678		$	(12,989	)
Interest rate cap agreements		(8,119	)		(974	)		(1,316	)	Debt expense		5,130			5,418			(3,589	)
Tax (expense) benefit		6,450			(108	)		3,950				(6,801	)		(8,207	)		6,448
Total	$	(10,059	)	$	169		$	(6,204	)		$	10,608		$	12,889		$	(10,130	)