Long-term debt (Tables)

12 Months Ended

Dec. 31, 2015

Debt Disclosure [Abstract]

Long-term Debt

Long-term debt was comprised of the following:

	December 31,
	2015			2014
Senior Secured Credit Facilities:
Term Loan A	$	925,000		$	975,000
Term Loan B		3,447,500			3,482,500
Senior notes		4,500,000			3,775,000
Acquisition obligations and other notes payable		70,645			69,045
Capital lease obligations		283,185			218,097
Total debt principal outstanding		9,226,330			8,519,642
Discount and deferred financing costs		(95,985	)		(100,864	)
		9,130,345			8,418,778
Less current portion		(129,037	)		(120,154	)
	$	9,001,308		$	8,298,624

Scheduled Maturities of Long-term Debt

Scheduled maturities of long-term debt at December 31, 2015 were as follows:

2016	129,037
2017	152,768
2018	166,132
2019	740,895
2020	65,171
Thereafter	7,972,327

Derivative Instruments

The following table summarizes the Company’s derivative instruments as of December 31, 2015 and 2014:

	Interest rate swap and cap agreements (liabilities and assets)
	December 31, 2015			December 31, 2014
Derivatives designated as hedging instruments	Balance sheet location	Fair value		Balance sheet location	Fair value
Interest rate swap agreements	Other short- term assets	$	516	Other short- term liabilities	$	1,457
Interest rate swap agreements	Other long- term assets	$	—	Other long- term assets	$	3,281
Interest rate cap agreements	Other long- term assets	$	15,127	Other long- term assets	$	13,934

Effects of Interest Rate Swap and Cap Agreements

The following table summarizes the effects of the Company’s interest rate swap and cap agreements for the years ended December 31, 2015, 2014 and 2013:

	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	2015			2014			2013			OCI into income	2015			2014			2013
Interest rate swap agreements	$	(3,971	)	$	(8,390	)	$	1,251		Debt expense	$	2,664		$	12,279		$	15,678
Interest rate cap agreements		(16,114	)		(8,119	)		(974	)	Debt expense		2,439			5,130			5,418
Tax (expense) benefit		7,844			6,450			(108	)			(1,992	)		(6,801	)		(8,207	)
Total	$	(12,241	)	$	(10,059	)	$	169			$	3,111		$	10,608		$	12,889