Revenue Recognition (Tables)

3 Months Ended

Apr. 01, 2017

Revenue Recognition

Schedule of activity of accounts receivable allowance

        A rollforward of the accounts receivable allowance is as follows (in thousands):

	Fiscal Quarter Ended			Fiscal Year Ended
	April 1, 2017			December 31, 2016
Balance at beginning of period	$	4,253		$	3,648
Increases to reserve		1,688			2,761
Amounts written off		(659	)		(2,156	)
Effects of foreign currency translation		4			—
Balance at end of period	$	5,286		$	4,253

Schedule of activity of unbilled receivables allowance

        A rollforward of the unbilled receivables allowance is as follows (in thousands):

	Fiscal Quarter Ended			Fiscal Year Ended
	April 1, 2017			December 31, 2016
Balance at beginning of period	$	1,720		$	2,354
Increases to reserves		884			2,102
Amounts written off		(242	)		(2,736	)
Effects of foreign currency translation		—			—
Balance at end of period	$	2,362		$	1,720

Schedule of reimbursable expenses included in revenues

        Reimbursable expenses are as follows (in thousands):

	Fiscal Quarter Ended
	April 1, 2017		April 2, 2016
Reimbursable expenses	$	9,140	$	8,030