Accounts payable and accrued expenses (Tables)

12 Months Ended

Dec. 31, 2012

Payables and Accruals [Abstract]

Components of accounts payable and accrued expenses

Accounts payable and accrued expenses are as follows:

	December 31, 2012		December 31, 2011
Outstanding checks in excess of cash	$	25,480	17,590
Accounts payable, trade	387,871		372,616
Accrued expenses	180,039		154,560
Product warranties	32,930		30,144
Accrued interest	26,843		34,235
Deferred tax liability	6,309		8,760
Income taxes payable	2,074		—
Accrued compensation and benefits	111,890		97,186
Total accounts payable and accrued expenses	$	773,436	715,091