Comprehensive income

9 Months Ended

Sep. 30, 2016

Statement Of Income And Comprehensive Income [Abstract]

Comprehensive income

14. Comprehensive income

	For the three months ended												For the nine months ended
	September 30, 2016												September 30, 2016
	Interest						Foreign			Accumulated			Interest						Foreign			Accumulated
	rate swap						currency			other			rate swap						currency			other
	and cap			Investment			translation			comprehensive			and cap			Investment			translation			comprehensive
	agreements			securities			adjustments			(loss) income			agreements			securities			adjustments			(loss) income
Beginning balance	$	(18,097	)	$	1,986		$	(43,925	)	$	(60,036	)	$	(10,925	)	$	1,361		$	(50,262	)	$	(59,826	)
Unrealized (losses) gains		(255	)		1,454			(951	)		248			(13,489	)		2,578			5,386			(5,525	)
Related income tax benefit (expense)		102			(391	)		—			(289	)		5,251			(797	)		—			4,454
		(153	)		1,063			(951	)		(41	)		(8,238	)		1,781			5,386			(1,071	)
Reclassification from accumulated    other comprehensive income    into net income		634			(81	)		7,513			8,066			2,128			(233	)		7,513			9,408
Related income tax (expense) benefit		(246	)		31			—			(215	)		(827	)		90			—			(737	)
		388			(50	)		7,513			7,851			1,301			(143	)		7,513			8,671
Ending balance	$	(17,862	)	$	2,999		$	(37,363	)	$	(52,226	)	$	(17,862	)	$	2,999		$	(37,363	)	$	(52,226	)

	For the three months ended												For the nine months ended
	September 30, 2015												September 30, 2015
	Interest						Foreign			Accumulated			Interest						Foreign			Accumulated
	rate swap						currency			other			rate swap						currency			other
	and cap			Investment			translation			comprehensive			and cap			Investment			translation			comprehensive
	agreements			securities			adjustments			income (loss)			agreements			securities			adjustments			(loss) income
Beginning balance	$	(8,407	)	$	3,261		$	(39,233	)	$	(44,379	)	$	(1,795	)	$	3,151		$	(26,373	)	$	(25,017	)
Unrealized (losses) gains		(3,037	)		(2,325	)		(7,023	)		(12,385	)		(16,513	)		(1,864	)		(19,883	)		(38,260	)
Related income tax benefit (expense)		1,186			674			—			1,860			6,449			496			—			6,945
		(1,851	)		(1,651	)		(7,023	)		(10,525	)		(10,064	)		(1,368	)		(19,883	)		(31,315	)
Reclassification from accumulated    other comprehensive income    into net income		1,264			(333	)		—			931			3,890			(617	)		—			3,273
Related income tax (expense) benefit		(493	)		130			—			(363	)		(1,518	)		241			—			(1,277	)
		771			(203	)		—			568			2,372			(376	)		—			1,996
Ending balance	$	(9,487	)	$	1,407		$	(46,256	)	$	(54,336	)	$	(9,487	)	$	1,407		$	(46,256	)	$	(54,336	)

The reclassification of net swap and cap realized losses into income are recorded as debt expense in the corresponding consolidated statements of income. See Note 9 to the condensed consolidated financial statements for further details.

The reclassification of net investment realized gains into income are recorded in other income in the corresponding consolidated statements of income. See Note 4 to the condensed consolidated financial statements for further details.